Download Aiwa Z-R325 Service manual
Transcript
HV-FX970 HV-GX910 Z Z SERVICE MANUAL VIDEO CASSETTE RECORDER BASIC TAPE MECHANISM : D-33 S/M Code No. 09-996-332-7R1 DA TA RE VI SIO N This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-996-332-7T1). TABLE OF CONTENTS SPECIFICATIONS ............................................................ 3 15. Support CST ............................................................. 60 ACCESSORIES LIST ....................................................... 3 16. Base Assembly P4 .................................................... 60 DISASSEMBLY INSTRUCTIONS ..................................... 4 17. Opener Lid ................................................................ 60 SERVICE POSITION ........................................................ 5 18. Arm Assembly T/up ................................................... 60 VCR TEST TAPE INTERCHANGEABILITY TABLE ........ 6 19. Arm Assembly Pinch ................................................. 60 ELECTRICAL MAIN PARTS LIST .............................. 7 ~ 8 20. Belt Capstan/Motor Capstan ..................................... 61 WIRE HARNESS DIAGRAM ............................................ 9 21.Clutch Assembly D33 ................................................. 61 BLOCK DIAGRAM ................................................. 10 ~ 18 22. Lever F/R .................................................................. 61 SCHEMATIC DIAGRAM 23. Gear Assembly H-UP/D or Gear Assembly UP/D ..... 61 1. POWER SECTION .............................................. 19 ~ 20 24. Bracket Assembly Jog ............................................... 62 2. AUDIO/VIDEO SECTION .................................... 21 ~ 22 25. Guide Rack F/L, Gear Rack F/L ................................ 62 3. SYSTEM CONTROL/SERVO/OSD SECTION) .. 25 ~ 26 26. Brake Assembly Capstan .......................................... 62 4. TUNER/IF SECTION ........................................... 27 ~ 28 27. Gear Drive/Gear Cam/Gear Connector .................... 63 5. SCART SECTION [FOR FX970Z] ....................... 29 ~ 30 28. Bracket Assembly L/D motor ..................................... 63 6. SCART SECTION [FOR GX910Z] .............................. 31 29. Gear Sector ............................................................... 64 7. FRONT 1 C.B .............................................................. 32 30. Base Tension/Plate Slider/Lever Tension .................. 64 8. FRONT 2 C.B .............................................................. 32 31. Gear Assembly P3/Gear Assembly P2 ..................... 65 TRANSISTOR ILLUSTRATION ...................................... 24 32. Base Assembly P3/Base Assembly P2 ..................... 65 WAVEFORM 33. Arm Assembly Idler Jog or Arm Assembly Idler ........ 65 1. VIDEO SECTION ........................................................ 23 DECK MECHANISM ADJUSTMENT 2. SERVO/OSD SECTION .............................................. 24 Tools and Fixtures for service ......................................... 66 3. TUNER SECTION ....................................................... 28 1. Mechanism Alignment Position Check ........................ 67 WIRING 2. Preparation for Adjustment ......................................... 68 1. MAIN C.B SECTION [FOR FX970Z] .................... 33~ 34 3. Checking Torque ......................................................... 68 2. MAIN C.B SECTION [FOR GX910Z] ................... 35~ 36 4. Guide Roller Height Adjustment .................................. 69 3. FRONT 1 C.B SECTION ............................................. 37 4-1. Preliminary Adjustment .......................................... 69 4. FRONT 2 C.B SECTION ............................................. 37 4-2. Precise Adjustment ................................................ 69 IC DESCRIPTION ................................................... 38 ~ 43 5. Audio/Control (A/C) Head Adjustment ......................... 70 ADJUSTMENT ........................................................ 44 ~ 45 5-1. Preliminary Adjustment .......................................... 70 MECHANICAL EXPLODED VIEW 1/1 ........................... 46 5-2. Confirm that the Tape Path smoothly between the MECHANICAL PARTS LIST 1/1 ................................... 47 Take-up Guide and Pinch Roller ............................ 71 MECHANISM EXPLODED VIEW 1/3, 2/3, 3/3 ..... 48,50,52 5-3. Precise Adjustment (Azimuth Adjustment) ............. 71 MECHANISM PARTS LIST 1/3, 2/3, 3/3 .............. 49,51,53 6. X-Value Adjustment ..................................................... 71 DECK MECHANISM PARTS LOCATIONS 7. Adjustment after Replacing Drum Assembly Top View .......................................................................... 54 (Video Heads) ............................................................. 72 Bottom View .................................................................... 54 8. Check the Tape Travel after Reassembling DECK MECHANISM DISASSEMBLY Deck Mechanism ......................................................... 72 1. Drum Assembly ......................................................... 55 8-1. Checking Audio and RF Locking Time 2. Plate Assembly Top ................................................... 57 during Playback and after CUE or REV ................ 72 3. Holder Assembly CST ............................................... 57 8-2. Check for Tape Curling or Jamming ....................... 72 4. Guide CST ................................................................ 57 MAINTENANCE/INSPECTION PROCEDURE 5. Bracket Side (L)/Bracket Assembly Door .................. 57 1. Check before starting Repairs .................................... 73 6. Arm Assembly F/L ..................................................... 57 2. Required Maintenance ................................................ 74 7. Lever Assembly S/W ................................................. 57 3. Scheduled Maintenance ............................................. 74 8. Arm Assembly Cleaner .............................................. 58 4. Supplies Required for Inspection and Maintenance ... 74 9. Head F/E ................................................................... 58 5. Maintenance Procedure .............................................. 74 10. Base Assembly A/C Head ......................................... 58 5-1. Cleaning ................................................................. 74 11. Brake Assembly S ..................................................... 59 5-2. Greasing ................................................................ 75 12. Brake Assembly T ..................................................... 59 MECHANISM TROUBLESHOOTING GUIDE 13. Arm Assembly Tension .............................................. 59 1. Deck Mechanism ........................................................ 76 14. Reel S & Reel T ........................................................ 59 2. Front Loading Mechanism .......................................... 79 2 SPECIFICATIONS Video recording system Video head [HV-FX970Z] [HV-GX910Z] Tuner system TV system Video signal system Usable cssettes Recording/playback time Tape speed Rewind time: Channel coverage Rotary 2 head helical scanning system Double azimuth 4 heads Azimuth 2 heads Frequency synthesized tuner B/G PAL color signal, 625 lines, 50 fields VHS video cassettes PAL/MESECAM SP: 5hours max. with E-300 tape. LP: 10 hours max. with E-300 tape [HV-FX970Z] NTSC (Playback only) SP: 3 hours 30 minutes max. with T-210 tape LP: 7 hours max. with T-210 tape [HV-FX970Z] EP: 10 hours 30 minutes max. with T-210 tape [HV-FX970Z] PAL/MESECAM SP: 23.39 mm/sec. LP: 11.69 mm/sec. [HV-FX970Z] NTSC (Playback only) SP: 33.35 mm/sec. LP: 16.67 mm/sec. [HV-FX970Z] EP: 11.12 mm/sec. [HV-FX970Z] Video input Video output Video S/N Audio track Audio input Audio output Operating temperature: Power requirements Power consumption Dimensions Weight • Design and specifications are subject to change without notice. ACCESSORIES LIST REF. NO 1 1 2 2 3 Approx. 3 min. with E-180 tspe VHF-low: C02 to C04, C13 to C20, S01 to S07 (CATV) VHF-high: C05 to C12, S08 to S41 (CATV) UHF: C21 to C71 1.0 Vp-p, 75 ohm, unbalanced 1.0 Vp-p, 75 ohm, unbalanced 43 dB (SP) 1 track (Mono) SCART: -5 dBs, more than 10 k ohm SCART: -5 dBs, less than 1 k ohm 5 °C to 40 °C 200 - 240 V AC, 50 Hz 18 watts TYPE 3.5 watts (power save mode.) 360 (W) x 278 (D) x 95 (H) mm (141/4 x 11 x 33/4 in.) Approx. 3.3 kg (7.26 lbs.) PART NO. KANRI DESCRIPTION NO. S8-35R-P00-36C INSTRUCTION ASSY<910> S8-35R-P00-34D INSTRUCTION ASSY<970> S7-11R-1P0-16D REMOTE CONTROLLER ASSY<910> S7-11R-1P0-16C REMOTE CONTROLLER ASSY<970> S8-615-05B-000 CABLE SET ASSY 3 DISASSEMBLY INSTRUCTIONS 1. Top Case Removal 1) Remove 4 screws holding the top case. 4. Mechanism Removal (see Fig. 3) 1) Disconnect the drum FF cable from the connector (PMD01) on the Main C.B. 2) Disconnect the ACE head FF cable from the connector (P3D02) on the Main C.B. 3) Remove 6 screws (A). 2. Panel Front Removal (see Fig. 1) 1) Release 7 tabs, and then remove the panel front. PMD01 P3D02 A FF CABLE PANEL FRONT FF CABLE A A TAB Fig. 1 Fig. 3 3. Front-1 C.B. and Front-2 C.B. Removal (see Fig. 2) 1) Release 2 tabs, and then remove front-1 C.B. from the connector (PKM02) in the direction of arrow (1). 2) Release the tab, and then remove front-2 C.B. from the connector (PKM01) in the direction of arrow (2). 5. Main C.B. Removal (see Fig. 4) 1) Remove 2 SCREWS B holding the panel assy, distri-butor. 2) Release 5 tabs, and then simultaneously lift the panel assembly, distributor and Main C.B. to remove them. B PANEL ASSY, DISTRIBUTOR TAB (1) PKM01 TAB TAB TAB TAB TAB (2) TAB Front-2 C,B MAIN C,B Front-1 C,B TAB PKM02 MAIN C,B Fig. 2 Fig. 4 4 SERVICE POSITION To set the mechanism to the service position in active status: Insert a spacer as shown below: The service position can be set in the stable status without any defective contact. MAIN C.B D33 MECHA SPACER 60mm MAIN C.B Use a spacer with a diameter of 10-15 mm, and of any shape (round, square, etc.). Caution: The spacer must be of insulated material, of a size that does not hinder the mechanism loading. D33 MECHANISM REAR PANEL Side view SPACER Location Install spacers at locations (A) and (B). CYLINDER B A HEAD CLEANER D33 Mechanism Top View 5 VCR TEST TAPE INTERCHANGEABILITY TABLE There are two types of the new allgnment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1)-(4) are recorded for the times and in the order shown below. (1) : 8min. → (2) : 2min. → (3) : 5min. → (4) : 5min. The TTV-MP1 (for M-PAL), TTV-MS1 (for MESECAM) and TTV-S1 (for SECAM) allgnment tapes have the same contents as the previous tapes. Now in use TYPE New TYPE Application Method Model Contents *1 Model Contents *1 TTV-N1 NTSC, Color bar, 1 kHz, SP TTV-NS1 NTSC, Color bar, 1 kHz, SP TTV-N1E NTSC, Color bar, 1 kHz, EP TTV-NS6E NTSC, Color bar, No sound, EP TTV-N2 NTSC, Stairsteps, 7 kHz, SP CH-1B(1) NTSC, Stairsteps, 7 kHz, SP Head ACE Azimuth ADJ. TTV-N12 NTSC, Color bar, (SCV-1998) 1 kHz, SP CH-1B(4) NTSC, Color bar, 1 kHz, EP FM Envelope ADJ. X-Value ADJ. NTSC CH-1B(2) NTSC, Stairsteps, 1 kHz, SP No Changed. CH-1B(4) *2 PB-Y Level/General electrical ADJ. Head ACE Height/Tilt ADJ. For S-VHS (SQPB) check NTSC, Color bar, 1 kHz, EP No Changed. Switching position ADJ. For S-VHS (SQPB) check TTV-N6 (TTV-N06T) NTSC, Mono scope, 7 kHz, SP TTV-N7A NTSC, Stairsteps, CH-1B(3) 1 kHz, SP, HiFi 400 Hz NTSC, Color bar, No sound SP, HiFi 400 Hz HiFi Audio PB Level ADJ. TTV-P1 PAL, Color bar, 1 kHz, SP CH-2 (2) *3 PAL, Stairsteps, 1 kHz, SP Switching position ADJ. PB-Y Level/General electrical ADJ. Head ACE Height/Tilt ADJ. TTV-P1L PAL, Color bar, 1 kHz, LP CH-2 (4) PAL, Color bar, 1 kHz, LP Switching position. (LP Model) FM Envelope ADJ. (LP Model) X-Value ADJ. (LP Model) TTV-P2 PAL, Stairsteps, 6 kHz, SP CH-2 (1) PAL, Stairsteps, 6 kHz, SP HEAD ACE Azimuth ADJ. FM Envelope ADJ. (SP Model) X-Value ADJ. (SP Model) TTV-P6 (TTV-N06T) PAL, Monoscope, 6 kHz, SP No Changed. For total picture quality check (resolution, etc) PAL TTV-P7 TTV-P16 PAL, Stairsteps, 1 kHz, SP, HiFi 1 kHz PAL, Color bar, 400 Hz, SP, HiFi 1 kHz No Changed. CH-2 (3) For total picture quality check (resolution, etc) PAL, Color bar, No sound SP, HiFi400 Hz No Changed. HiFi Audio PB Level ADJ. FM Filter ADJ. * 1. Described in the order of color format. video signal. linear audio. tape speed and Hi-Fi audio. * 2. Use CH-1B (1)-(3) with models used exclusively in the SP mode. * 3. Use CH-2 (3) and (4) when it is necessary to observe the chroma signal. 6 ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI NO. DESCRIPTION REF. NO IC PART NO. KANRI NO. DESCRIPTION C302 C303 C304 C305 C310 87-010-544-010 87-015-695-080 87-016-088-040 87-010-544-010 87-015-698-080 CAP,E CAP,E CAP,E CAP,E CAP,E 0.1-50V<970> 1.0M-50V 220-6.3V 0.1-50V 4.7-50V<970> C310 C314 C315 C316 C318 87-015-681-080 87-010-544-010 87-015-681-080 87-015-681-080 87-010-402-040 CAP,E CAP,E CAP,E CAP,E CAP,E 10-16V<910> 0.1-50V 10-16V 10-16V 2.2-50V C319 C320 C322 C323 C324 87-010-544-010 SC-N10-50K-948 87-010-078-080 87-010-078-080 87-010-544-010 CAP,E 0.1-50V CAP,1UF-50V CAP,E 47M-6.3V CAP,E 47M-6.3V CAP,E 0.1-50V C325 C326 C327 C331 C334 SC-N10-50K-948 87-015-681-080 SC-N10-50K-948 87-016-088-040 87-016-088-040 CAP,1UF-50V CAP,E 10-16V CAP,1UF-50V CAP,E 220-6.3V CAP,E 220-6.3V C335 C337 C339 C346 C348 87-010-544-010 87-015-698-080 87-015-698-080 87-016-088-040 87-015-695-080 CAP,E CAP,E CAP,E CAP,E CAP,E 0.1-50V 4.7-50V 4.7-50V 220-6.3V 1.0M-50V C350 C354 C358 C371 C373 87-010-544-010 87-016-088-040 87-015-695-080 87-010-544-010 87-010-544-010 CAP,E CAP,E CAP,E CAP,E CAP,E 0.1-50V 220-6.3V 1.0M-50V 0.1-50V 0.1-50V C374 C375 C401 C403 C405 87-010-544-010 87-010-544-010 87-010-078-080 87-010-544-010 87-015-681-080 CAP,E CAP,E CAP,E CAP,E CAP,E 0.1-50V<910> 0.1-50V 47M-6.3V 0.1-50V 10-16V C406 C410 C412 C415 C420 87-015-681-080 87-010-544-010 87-010-544-010 87-010-552-040 87-010-408-040 CAP,E CAP,E CAP,E CAP,E CAP,E 10-16V 0.1-50V 0.1-50V 22-16V 47UF-50V 0.1-50V<910> 4.7-50V 0.1-50V 3.3-50V 22-16V SI-SK6-153-00A S6-570-62B-000 SI-KE4-310-00A SI-SA7-159-10A SI-HI3-977-06A IC,STR-G6153T 5P SENSOR PC123Y IC,KIA431 3P IC,LA71591M IC,HD3977RC06F SI-SS3-082-00A SI-AL2-416-00B SI-KE7-031-00A SI-KE7-042-00B 87-A20-281-010 IC,KA3082 IC,AT24C16-10PC IC,KIA7031P IC,KIA7042P IC,MN12510 SI-SA7-479-30A SI-RH7-635-00A IC,LC74793<970> IC,BH7635S<970> ST-R32-030-9AA S7-A30-293-010 ST-R31-980-9AC S3-1KR-A10-3M0 ST-R12-680-9BA TR,KTC3203-Y TR,KTC2804-Y TR,KTC3198-TP-BL TR,KRA103M-TP TR,KTA1268-BL ST-R12-730-9AA SK-RC1-01M-000 ST-R31-990-9AF ST-R12-670-9AC ST-R10-300-9AE TR,KTA1273-TP-Y TR,KRC101M TR,KTC3199-BL TR,KTA1267-GR TR,KRC103M SD-D22-100-9AA SD-D01-000-9AC 87-020-215-010 SD-R18-020-9AA 87-070-112-060 DIODE,ERA22-10 DIODE,EU01W DIODE,ERC81-004L22 DIODE,ERA18-02KFRB DIODE,RU4YXLF 87-020-465-080 87-017-011-080 87-070-173-010 DIODE,1SS133 DIODE,IN4003A DIODE,S1WBA60 BC101 BC102 !C101 !C101 !C102 S6-360-04C-000 S6-360-04C-000 S6-240-88F-000 S6-240-88F-000 S6-240-88F-000 COIL,BFS3550R2FD8 COIL,BFS3550R2FD8 CAP,PCX2 275V 0.1UF,M CAP,0.1UF-275V CAP,PCX2 275V 0.1UF,M C422 C423 C424 C466 C4A1 87-010-544-010 87-015-698-080 87-010-544-010 87-010-403-040 87-010-552-040 CAP,E CAP,E CAP,E CAP,E CAP,E !C102 !C103 !C105 !C106 C109 S6-240-88F-000 S0-2TF-H68-0M0 87-016-375-010 S6-240-87B-000 87-010-982-040 CAP,0.1UF-275V CAP,E 68UF-400V CAP,0.01UF-630V CAP,100P-1KV CAP,E 33UF-25V C500 C500 C501 C502 C503 87-016-455-080 87-016-040-080 87-010-544-010 87-010-078-080 87-010-544-010 CAP,E 470UF-6.3V<970> CAP,0.047F-5.5V<910> CAP,E 0.1-50V CAP,E 47M-6.3V CAP,E 0.1-50V !C112 !C113 C115 C116 C117 87-012-379-010 SA-1B3-0KH-2M0 S6-240-85D-000 87-010-237-910 87-016-577-080 CAP,3300PF-400V CAP,220PF-400V CAP,E 47-50V CAP,E 1000UF-16V CAP,470UF-16V C504 C505 C507 C508 C510 87-016-088-040 87-010-078-080 87-010-544-010 87-010-544-010 87-015-684-080 CAP,E CAP,E CAP,E CAP,E CAP,E 220-6.3V 47M-6.3V 0.1-50V 0.1-50V 47-16V<910> C118 C119 C120 C121 C123 87-A10-189-080 S6-240-85D-000 87-010-387-010 87-010-387-010 87-010-078-080 CAP,E CAP,E CAP,E CAP,E CAP,E 220M-10V 47-50V 470UF-25V KME 470UF-25V KME 47M-6.3V C513 C524 C525 C526 C529 87-010-544-010 87-010-265-080 87-015-684-080 87-A10-216-080 87-010-544-010 CAP,E CAP,E CAP,E CAP,E CAP,E 0.1-50V 33-16V 47-16V 47M-25V 0.1-50V C124 C151 C152 C153 C155 87-010-552-040 87-015-698-080 87-015-698-080 87-015-698-080 87-010-544-010 CAP,E CAP,E CAP,E CAP,E CAP,E 22-16V 4.7-50V 4.7-50V 4.7-50V 0.1-50V C530 C534 C535 C541 C545 87-015-681-080 87-015-698-080 87-015-698-080 87-015-698-080 87-010-544-010 CAP,E CAP,E CAP,E CAP,E CAP,E 10-16V 4.7-50V 4.7-50V 4.7-50V 0.1-50V C156 C157 C159 C218 C301 87-015-681-080 87-015-681-080 87-015-681-080 87-010-544-010 87-010-544-010 CAP,E CAP,E CAP,E CAP,E CAP,E 10-16V 10-16V 10-16V 0.1-50V 0.1-50V<970> C546 C561 C588 C5F4 C5F7 87-015-684-080 87-010-078-080 87-015-698-080 87-010-544-010 87-010-078-080 CAP,E CAP,E CAP,E CAP,E CAP,E 47-16V 47M-6.3V 4.7-50V 0.1-50V 47M-6.3V ! TRANSISTOR DIODE MAIN C.B 7 REF. NO PART NO. KANRI NO. C5F8 C701 C702 C703 C704 87-010-078-080 87-015-698-080 87-015-681-080 87-015-698-080 87-010-078-080 CAP,E CAP,E CAP,E CAP,E CAP,E C706 C713 C7M2 C7M5 C7V1 87-016-577-080 87-010-078-080 87-015-684-080 87-015-681-080 87-015-684-080 C7V2 C7V6 C7V7 C7V8 C902 DESCRIPTION REF. NO 47M-6.3V 4.7-50V 10-16V 4.7-50V 47M-6.3V PART NO. KANRI NO. DESCRIPTION L902 L903 L904 L905 L906 87-005-696-080 SL-A01-01K-018 87-005-696-080 S6-360-04C-000 87-005-696-080 COIL,100M 1.0M K 2.3X3.4 L5 TP COIL,100M BEAD CORE,BFS3550R2FD8 COIL,100M CAP,470UF-16V CAP,E 47M-6.3V CAP,E 47-16V CAP,E 10-16V CAP,E 47-16V<970> L907 L911 L912 L914 L916 S6-360-04C-000 87-005-696-080 87-005-696-080 87-005-696-080 87-005-696-080 BEAD CORE,BFS3550R2FD8 COIL,100M<970> COIL,100M<970> COIL,100M<970> COIL,100M<970> SC-N10-50K-948 87-015-698-080 87-015-695-080 87-015-695-080 87-016-577-080 CAP,1UF-50V<970> CAP,E 4.7-50V<970> CAP,E 1.0M-50V<970> CAP,E 1.0M-50V<970> CAP,470UF-16V LD501 MS501 P3D01 P3D01 P3D02 S9-31R-001-7A0 S6-00R-PY0-01B S5-612-34Y-000 S5-612-34Z-000 S6-30R-5S0-08E LED SW,MMS00420ZMBO MIC CONN,6P<970> CONN,3P<910> CONN,6P C905 C906 C912 C941 C943 87-015-681-080 87-015-681-080 87-016-577-080 87-015-681-080 87-015-681-080 CAP,E 10-16V<910> CAP,E 10-16V<910> CAP,470UF-16V<970> CAP,E 10-16V<970> CAP,E 10-16V<970> P3D03 PMC01 PMD01 PMK01 PMK02 S5-612-51B-000 S6-30R-2P0-05C S5-612-34V-000 S6-724-34B-000 S5-618-43J-000 CONN,2P CONN,8P CONN,7P CONN,5P CONN,10P C944 C945 C946 C947 C948 87-015-681-080 87-015-681-080 87-015-681-080 87-015-681-080 87-015-681-080 CAP,E CAP,E CAP,E CAP,E CAP,E 10-16V<970> 10-16V<970> 10-16V<970> 10-16V<970> 10-16V<970> PML01 !PW101 !R101 !R102 !R104 S6-30R-2S0-11A S5-612-92B-000 S6-140-07A-000 SR-S10-03K-619 SR-S56-02K-619 CONN,2P CONN,2P RES,2.7-2W RES,100K-2W RES,56K-2W C949 C950 C951 C952 C953 87-010-544-010 87-015-681-080 87-015-684-080 87-010-544-010 87-015-681-080 CAP,E CAP,E CAP,E CAP,E CAP,E 0.1-50V<970> 10-16V<970> 47-16V 0.1-50V 10-16V<970> !R109 R524 RS501 RS502 T101 SR-S03-50K-619 SR-F06-81J-619 S5-00R-AB0-02A S5-00R-AB0-02A S6-420-23M-000 RES,0.35-2W 6.8 OHM 1 W 5% TR R GP1S566 SHARP D-33 REEL SENSO GP1S566 SHARP D-33 REEL SENSO TRANS EER2828 C955 CS501 DIG5F1 DIG5F1 ES501 87-015-681-080 S6-00R-DB0-04C S3-02R-1N0-03B S3-02R-2N0-03B S9-31R-001-6A0 CAP,E 10-16V<970> SW,MPU10252MLB4 MIC 7MT229GK MONO FUTABA UNIVERSA SVV07MM16 MONO SAMSUNG UNIVER SENSOR END TL401 TU701 VR501 X301 X501 S6-330-32K-000 S7-00R-P3G-01B S6-130-32W-000 S2-02R-144-3AE S2-02R-310-01E COIL,OSC BIAS 1CHIP 5V TUNER TCMB0600PD08C VR,RH063MCJ5R(220K) X’TAL,4.433709MHZ 15PPM X’TAL,10.0000 ES502 !F101 !F103 !FH01 !FH02 S9-31R-001-6A0 S5-850-11T-000 87-001-196-010 S5-860-08B-000 S5-860-08B-000 SENSOR END FUSE,1600MA 250V ICP-N10 T104 FUSE CLUMP FUSE CLUMP X502 X503 X5F1 X7V1 X7V1 S5-290-01K-000 S2-02R-317-71E S6-180-10B-000 S2-02R-317-71E S2-02R-317-71F X’TAL,32.768KHZ X’TAL,17.7344 X’TAL,4MHZ ATS TAEIL RADIAL 17.734476MHZ<970> KEUMSEOK RADIAL 17.7344XR<970> !FR02 JK901 JK901 !L102 L103 SR-F04-71Q-619 S6-20R-M00-02B S6-20R-M00-02A S6-161-45H-000 S6-330-88G-000 4.7 OHM 1/4 W (3.4) 5% TR R JACK 21P<910> JACK 42P<970> FILTER SHT LFS2020V4-04350 COIL,CHOCK TP 5MM 27MH ZD104 ZD151 ZD152 ZD153 ZD501 83-NEG-677-080 SD-Z13-000-9AA S9-7U0-100-1C0 SD-Z13-000-9AA SM-TZ6-8CT-000 DIODE,MTZ5.6B ZENER,MTZ13A MTZ10-C ZENER,MTZ13A ZENER,MTZ6.8C L104 L105 L301 L302 L303 S6-330-88G-000 87-005-696-080 87-005-196-080 87-005-693-080 87-005-438-080 COIL,CHOCK TP 5MM 27MH COIL,100M COIL,10UH COIL,56M 2.3-3.4-5 COIL,33M 2.3-3.4-5 ZD503 ZD5F1 ZD701 ZD9A1 83-NEG-678-080 SD-Z51-000-9HA 87-002-743-080 SD-Z13-000-9AA ZENER,MTZ6.2B ZENER,MTZ5.1B 0.5W ZENER,MTZ33B ZENER,MTZ13A L304 L306 L307 L308 L309 87-005-696-080 87-005-696-080 87-005-696-080 S2-165-120-000 87-005-696-080 COIL,100UH COIL,100UH COIL,100UH COIL,12M 2.3-3.4-5 COIL,100UH L401 L402 L405 L502 L505 87-005-683-080 SL-R68-01J-045 87-005-196-080 87-005-696-080 87-005-696-080 COIL,8.2M COIL,6800U J 6-7-5 COIL,10UH COIL,100UH COIL,100UH L506 L507 L5S1 L701 L702 87-005-686-080 87-005-696-080 87-005-438-080 87-005-696-080 87-005-196-080 COIL,15UH COIL,100M COIL,33M 2.3-3.4-5 COIL,100UH COIL,10UH L703 L704 L705 L7V1 L901 87-005-196-080 87-005-683-080 87-005-696-080 87-005-696-080 87-005-696-080 COIL,10UH COIL,8.2M COIL,100UH COIL,100UH<970> COIL,100M FRONT-1 C.B PMK02 SW5A1 SW5A2 SW5A3 SW5A4 S5-618-44J-000 S5-562-82C-000 S5-562-82C-000 S5-562-82C-000 S5-562-82C-000 CONN,10P SW,SKQNQED SW,SKQNQED SW,SKQNQED SW,SKQNQED SW5A5 SW5A6 S5-562-82C-000 S5-562-82C-000 SW,SKQNQED ALPS 5MM SW,SKQNQED ALPS 5MM ALPS ALPS ALPS ALPS 5MM 5MM 5MM 5MM FRONT-2 C.B 8 LD5A1 PMK01 SW5A0 SW5A7 SW5A8 SD-L53-110-0AA S5-610-36D-000 S5-562-82C-000 S5-562-82C-000 S5-562-82C-000 LED,SG5311(GRN) CONN,5P SW,SKQNQED ALPS 5MM SW,SKQNQED ALPS 5MM SW,SKQNQED ALPS 5MM SW5A9 S5-562-82C-000 SW,SKQNQED ALPS 5MM L WIRE HARNESS DIAGRAM PMD01 PMD01 1 D.CTL 1 2 M.GND 2 3 DFG 3 4 12V 4 5 PG 5 6 GND 6 7 5.3V 7 B FRONT1 C.B PKM02 PMC01 1 2 3 4 5 6 7 8 9 10 GND 1 2 MOTOR GND I-LIMIT 3 CAP CTL 4 12V 5 CFG 6 7 CAP REV "L" 5.3V 8 PMK02 1 2 3 4 5 6 7 8 GND 9 KEY RTN0 10 A MAIN C.B PCM01 P3D03 P3D01 1 2 3 4 5 6 1 2 3 4 5 CAPSTAN MOTOR ACE HEAD MS501 MODE SW PD303 1 GND 2 FULLERASE C FRONT2 C.B 1 2 3 4 5 6 7 8 P3D02 P3D02 1 CTL(+) 1 2 CTL(-) 2 3 A/E(-) 3 4 A/E(+) 4 5 A.REC 5 6 A.PB 6 MS501 GND 1 MODE S1 2 MODE S2 3 MODE S3 4 MODE S4 5 PKM01 PMK01 1 GND 1 2 OTB "H" 2 3 5.3VA 3 4 GND 4 5 5 KEY RTN1 LOWER DRUM 1 2 FULL ERASE HEAD P3D01 SP A PB SP REC SP B PB LP A PB LP REC LP B PB 1 2 3 4 5 6 CYL. HEADS FX970Z:4HEAD GX910Z:2HEAD [FOR FX970Z] PML01 1 2 9 PML01 LD(+) LD(-) 1 2 LOADING MOTOR R102 3 4 1 10 NOTES: BK WH (BR) (BL) PW101 F101 + C112 (D102,R104, C105,C106) SNUBBER BLOCK HOT GND D104,R103,C109) (IC101,R109,C111, DRIVE & S/W BLOCK OVER CURRENT LIMIT BLOCK C103 Hot circuit Symbol denotes DC chassis ground. Symbol denotes AC ground. R101 C113 (C101,L102, C102) LINE FILTER BLOCK 2 BD101 3 4 1 2 IC102 4 6 15 13 12 7 8 11 10 9 T101 TRANSFORMER 2 1 (D105, C115) RECTIFIER & SMOOTHING (D108, C119) RECTIFIER & SMOOTHING IC103 (R116,R117,R118 R119,R120,R121 C114) FEED-BACK BLOCK (D106, C116, L103,C117) RECTIFIER & SMOOTHING (D107, C118,R114) RECTIFIER & SMOOTHING (D109, C120, L104,C121) RECTIFIER & SMOOTHING (Q158,R154, R155) 36V S/W BLOCK 12VT REG. BLOCK (Q153,C152 R171, ZD153) D154 D155 (Q162, R161, R162) 5VT SW BLOCK Q160 (Q161) PWR CTL BLOCK (Q159, R158, R159) 5V S/W BLOCK (Q164,R169,R170) 5VG SW BLOCK 9V REG. BLOCK (Q152,R152, Q165,C153, ZD152) (Q151,R151, ZD151, C151) 12VA REG. BLOCK (Q156,Q157,R166,R167) (Q154,R164,R165,Q155) -27VG S/W BLK D152 TIMER "H" PWR CTL "H" 5V 5VT 5.3VA 5VG 12V(DRUM) STAND-BY "H" 9V 33VT 12VA FD(+) FD(-) -27VG 12.3V(CAP) FROM SYSCON/SERVO SECTION TO SYSCON/SERVO, TUNER/IF SECTION FROM/TO SYSCON/SERVO SECTION TO TUNER/IF SECTION TO SCART SECTION TO SYSCON/SERVO, SECTION BLOCK DIAGRAM-1 (POWER SECTION) BLOCK DIAGRAM-3 (VIDEO SECTION) BLOCK DIAGRAM-2 (AUDIO SECTION) •PB Mode •PB Mode : PB CHROMA SIGNAL Q304 : PB Y SIGNAL FROM CYL.HEADS IC301 LA71591M 1 AUDIO 100 [FOR FX970Z] LP 'A' PB 4 HA LINE AMP 6 Q401 Q402 Q403 MUTE NORMAL, AUDIO OUT 96 To SCART SECTION 5 SERIAL DECODER LP/EP 99 24 LP 'B' PB SP 'A' PB 91 DATA 52 51 61 C. COMB 72 71 LPF 46 Y DELAY 45 43 IC301 LA71591M 41 NL DE EMP YNR ENV. DET 93 CLK DOUBLE LIMIT PB EQ TO SYSCON/SERVO SECTION 10 11 Y/C MIX FM DEM PB FM AGC 23 FROM SYSCON/SERVO SECTION 54 C LPF 85 88 57 MAIN CONV ACC 82 SP 'B' PB V. ENV : PB AUDIO SIGNAL 59 18 17 LPF SUB LPF CLAMP 21 60dB AMP 20 23 24 28 29 Q305 PB PEAKING MAIN DE-EMPH Q301 Q302 COLOR V.H S/W ROTARY CLOCK DATA C SYNC V. OUT VPS Y/C VIDEO FROM SYSCON/SERVO SECTION FROM/TO SYSCON/SERVO SECTION •REC Mode •REC Mode : REC CHROMA SIGNAL : REC Y SIGNAL 71 72 61 BPF COMB AMP IC301 LA71591M IC301 LA71591M LINE 1 IN TUNER AUDIO IN FROM SCART SECTION TL401, Q405 78 76 ALC LINE AMP AUTO BIAS REC AMP MUTE 99 CONTROL Q401 BIAS OSC [FOR FX970Z] (TO DRUM) (TO DRUM) 98 52 54 57 59 C. COMB BPF1 LP REC 84 CCD LPF 7 SP REC 90 45 43 YNR + 6 DETAIL ENH Y-LPF NL EMPH FBC 34 36 38 REC FM EQ AUDIO HD : REC AUDIO SIGNAL FM MOD 10 11 S/W 32 W/D CLIP AGC 18 19 23 24 28 29 MAIN EMPH COLOR V. H S/W ROTARY C. SYNC DATA 30 REC 'H' Y/C VIDEO FROM/TO SYSCON/SERVO SECTION 12 31 Q305 CLOCK FROM SYSCON/SERVO SECTION 11 46 Y DELAY 41 80 96 51 V. IN 2 V. IN 1 FROM SCART SECTION BLOCK DIAGRAM-4 (TUNER SECTION) FROM POWER SECTION FROM/TO SCART SECTION 1B 4E 3E FROM POWER SECTION 2B 1H FROM SYSCON/SERVO SECTION 2H 3H FROM POWER SECTION VIDEO BUFFER 3B Q701 FROM SYSCON/SERVO SECTION FROM POWER SECTION FROM SYSCON/SERVO SECTION VIDEO(VPS) 4H 4B 5H 6H [FOR FX970Z] FROM POWER SECTION 5B 1E TO SCART SECTION 5E :PB VIDEO SIGNAL :REC VIDEO SIGNAL 13 :PB AUDIO SIGNAL :REC AUDIO SIGNAL 14 BLOCK DIAGRAM-5 (SCART SECTION) JK901 [SCART1] :PB VIDEO SIGNAL :REC VIDEO SIGNAL : VIDEO SIGNAL :PB AUDIO SIGNAL :REC AUDIO SIGNAL 12VA 1A GND 3A 1 2 3 4 5 6 7 AUDIO-R OUT AUDIO-R IN AUDIO-L OUT GND GND AUDIO-L IN 8 9 10 11 12 13 14 15 16 17 18 19 20 21 SCART H GND GND GND GND GND VIDEO OUT VIDEO IN GNG JK901 SCART1 21 20 19 To POWER SECTION 18 16 15 14 13 12 [FOR FX970Z] 11 J9S3 9 10 8 7 6 5 SCART AUDIO OUTPUT BUFFER (Q902,C905,C906, R931,R932,R936) 4 AV1 IN/OUT(TV) [FOR FX970Z] AV IN/OUT(TV) [FOR GX910Z] 17 3 2 1 [FOR GX910Z] D902 [FOR GX910Z] TU AUDIO(L) 1E MOD.AUDIO VIDEO TU VIDEO 3E 4E 5E [FOR FX970Z] J9A1 JK901 SCART2 J9A2 42 41 40 38 [FOR GX910Z] 37 36 35 34 AUDIO 2 AUDIO 1 MONO AUDIO VIDEO 2 2G 3G 4G 5G 33 32 31 30 29 AV2 (DECODER) J9E1 J9A3 J9A4 39 To TUNER/IF SECTION 28 27 [FOR FX970Z] VIDEO 1 26 6G 25 24 To AUDIO/ VIDEO SECTION 23 22 IIC CLOCK 1J IIC DATA 2J A.MUTE "H" 3J 13 AUDIO MUTING CIRCUIT (Q906,D903,D904,C956,R943) 14 15 16 17 18 19 20 21 22 23 VCC To SYSCON/ SERVO SECTION IC901 BH7635S 6J C+ DET "H" [FOR FX970Z] IC-BUS CONT. SCART "H" & 16:9 "H" SWITCHING CIRCUIT (Q903,Q908,Q909 R921,R922) CLAMP 5V REG 12 15 24 CLAMP 11 10 9 8 7 GND 6 5 CLAMP VCC 4 3 CLAMP GND 2 22 23 24 25 26 27 28 AUDIO-R OUT AUDIO-R IN AUDIO-L OUT GND GND AUDIO-L IN 29 30 31 32 33 34 35 16 16:9 "H" 8J SCART "H" [FOR GX910Z] To SYSCON/ SERVO SECTION JK901 [SCART2] 1 7J C+ GND GND GND 36 37 38 39 40 41 42 GND GND VIDEO OUT VIDEO IN GNG BLOCK DIAGRAM-6 (SYSTEM CONTROL SECTION) FROM/TO SCART SECTION FROM/TO DECK P1 V ret IN 1 IN 2 VCC 1 VCC 2 P2 OUT 2 1 2 3 4 5 6 7 8 9 10 ZD501 OUT 1 FROM/TO AUDIO/VIDEOSECTION 70 X-TAL1 69 X-TAL2 10 PG ADJ ES501 T-UP END 1 T-UP SENSOR 5 SUPPLY REEL 4 T-UP REEL 51 DOSC OUT 50 DOSC IN GND VCC V OUT Q514 1 2 3 RS501 T-UP REEL R557 5.3VA RC5F1 REMOTE SENSOR TEST 'H' Vss(A/D) Vss(OSD) Vss(SERVO) Vss(SYS) OSC KEY RTN 1 L506 R518 C518 C519 KEY RTN 0 52 4fsc out 53 4fsc in CST SW 'H' OSC R560 R558 X503 82 57 13 14 68 2 49 33 71 15 42 41 22 EEPROM 1 2 3 4 5 6 7 8 9 10 11 5 6 7 8 3 2 1 IC504 IC505 Q503 3 2 1 Q501 CS501 CST&REC SW L505 5V C561 R559 VR501 PG ADJ Q515 RS502 SUP.REEL IC501 HD3977 3 END SENSOR IC503 AT24C16 IC5F1 MN12510F VCC OSC 22 21 20 19 18 17 16 15 14 13 12 GND X502 32.768KHZ 1 2 3 4 34 35 36 37 38 39 40 41 42 43 44 OUT RESET 72 OSC1 73 OSC2 VCC OSC 33 32 31 30 29 28 27 26 25 24 23 FROM/TO TU/IF SECTION 58 54 60 79 27 6 66 28 29 30 43 45 88 9 87 81 90 91 90 94 97 96 95 16 89 GND ES502 END X501 10MHZ SCART "H" C.SYNC(NOR) CPWR CTL "H" REC 'H' DV.SYNC SECAM DET "H" TIMER "H" C.ROTARY H AMP SW COMP. IN CVin CVout STAND-BY 'H' AFT C.SYNC(INV) IIC DATA IIC CLK IIC DATA IIC CLK S7/ FLD ENV S6/ FLD DATA OUT S5/ FLD DATA IN S4/ FLD CLK RESE PWR FA C521 R550 LD501 DECK IR LED R555 L507 CH-DOWN OPTB REC FF REW PLAY STOP P/STILL L502 5.3VA 17 C505 CH-UP PLAY C504 C503 5VT C506 R553 5V TO POWER SECTION IIC DATA 91 V.ENV 12 V. H/SW 24 C500 77 76 75 74 MODE SW1 MODE SW2 MODE SW3 MODE SW4 R/C MODE SW R525 1 2 3 4 5 GND MODE S1 MODE S2 MODE S3 MODE S4 19 LD(-) 20 LD(+) OUT RESET MS501 62 90 91 90 C501 R526 31 32 61 78 25 26 38 39 40 80 81 Vcc(A/D) Vcc(OSD) Vcc(SERVO) Vcc(SYS) C528 C529 A.MUTE 'H' IIC CLK IIC DATA IIC CLK 12V CTL+ CTLCAP REV "H" I - LIMIT DRUM PWM CAP PWM DFG DPG CFG CAP ADJ DRUM ADJ L/D MOTOR KA3082 GND IC502 18 FROM POWER SECTION SCHEMATIC DIAGRAM-1(POWER SECTION) A MAIN(POWER SECTION)C.B D152 1N4003A Q153 KTC2804-Y 14.8 1B 12.4 Q151 KTC3203-Y R151 1.2K ZD151 MTZ13A BD101 S1WBA60 T101 EER2828 6 9 R101 2.7 2W R104 56K 2W C120 470/25 4 BC101 BEAD CORE C102 0.1/275 C122 0.022 R102 100K 2W D108 EU01W 11 BC102 BEAD CORE OVP Latch 309 DROIN R103 8.2 D104 EU01W 1 D107 F103 ICP-N10 ERA18 Reg3(7.2V) R Q FB 1 2 FB 4 PW101 IC101 STR-G6153T R117 2.2K 1 0 Q154 KTC3198 C118 220/10 3 C111 0.022 4.0 (4.6) 5VT 4B 33VT 5B 5V 6B GND Q165 KRC101M To TUNER/IF SECTION 1B 6B R165 12K 5.2 Q156 KTC3203-Y 1C 12.3V(CAP) ZD104 MTZ5.6B 0 C155 0.1 2C 12V(DRUM) 3C -27VG 5.3 -16.0 C117 470/16 R166 2.2K C115 47/50 4C -21VG(F-) 5C -15VG(F+) Q157 KRA103M 5.2 R167 2.2K 0 R 5.3 4.6 Q158 KTA1268-BL C114 0.047 R119 3.3K 1% R120 2.7K 1% 4.0 1 IC103 KA431AZ 35.6 6C STAND-BY "H" R169 1K R170 1K 5.3 5.3 35.3 Q164 KSA1273 7C 5VG 8C TIMER "H" 9C 5VT 10C 5V R157 1K R156 10K R155 35.0 27K R161 270 0 3 R162 330 2 0 R121 180 5.2 5.3 Q160 KRC101M Q162 KTA1273 5.2 Q159 KTA1273 C113 220P/400 5.0 R 0 D151 1SS133 4.5 2.5 5.3 C123 47/6.3 0 4.5 5.0 POWER CORD R158 270 R159 330 Q161 KTC3199-BL 0 R172 12K 11C PWR CTL "H" C124 22/16 12C 13C NOTE:ONE VOLTAGE:PB OR REC MODE TWO VOLTAGES:PB AND (REC) MODE 5.3VA GND To SYSCON/ SERVO SECTION 1C 13C :HOT CIRCUIT 1D 2D 3D 19 GND To SCART SECTION 1A 3A Q155 KRA103M R -15.4 R118 1K 12VA 2 0 C112 3300P/400 0 9V 3B L105 100U -27.3 -26.6 R114 100K R154 1K R109 GND 0.35 2W ZD152 MTZ10C 2B 3A -27.3 4.9 4.0 4 0 5.3VA 2A R116 330 IC102 PC123Y 3 Counter FH01 15 0 OCP Mirror FB Curent Detector F101 T1.6A/250V D105 EU01W OCP Buffer Amp. 10.0 R R171 3.9K C151 4.7/50 L103 22U S TSD FH02 13 C109 33/25 Drive OSC C153 4.7/50 ZD153 MTZ13A 12.5 C119 47/50 C116 1000/16 D106 ERC81-004L 2 Reg1(9.4V) Reg2(7.2V) C101 0.1/275 C157 10/16 -16.1 VCC C156 10/16 C152 4.7/50 R164 12K 7 12 Slort 10.0 Q152 KTC3203-Y C121 470/25 FR02 4.7 1/4W 5 L102 33m 11.9 8 16.1 (16.3) R152 1.2K 9.4 L104 22U 10 C106 100P/1K 11.8 1A C105 0.01/630 D102 ERA22-10 C103 68/400 D109 RU4YXLF D155 1N4003A 11.8 C159 10/16 14.8 D154 1N4003A 20 5VT 5V GND To AUDIO/ VIDEO SECTION 1D 3D SCHEMATIC DIAGRAM-2 (AUDIO/VIDEO SECTION) A MAIN(AUDIO/VIDEO SECTION)C.B 1D 2D 3D 5VT R427 47K To POWER SECTION 1D 3D R425 47K R430 3.9K L401 8.2U R428 3.9K L309 100U [FOR GX910Z] C425 2200P 30 80 R323 5.6K C403 0.1 0 2.4 77 5.0 76 75 74 3.4 3.2 73 72 2.5 71 70 Vref 2.3V H.A GND R 85 0 86 5.0 87 0 L405 10U 2 R420 1K P3D03 Q405 KTC3203-Y To FULL ERASE HEAD R421 2.2 3 C418 0.015 C337 4.7/50 R326 2.7K C341 0.022 R322 8.2K C342 0.01 16 14 2.3 C3B1 0.033 R491 12K R490 47K * * 5 4 * C420 47/50 R305 1.5K:GX910Z 1.2K:FX970Z R309 750:GX910Z 680:FX970Z R338 270:GX910Z 220:FX970Z * * C301 0.047:GX910Z 0.1:FX970Z C310 10/16:GX910Z 4.7/50:FX970Z CLAMP (2.5) 17 18 19 20 3.0 1.9 1.1 3.0 (0.2) (2.5) R308 1 2.7K 5.1 R306 330 4.3(3.8) C376 0.022 Y-GND 15 1.9 (1.5) R R341 1.2 3.3K (1.7) 21 H-PLL 22 AGC TC2 25 4.9 26 0.1 0 10 60dB AMP 27 28 PB CTL 0.3 0.3 3 6 29 EE AGC EQ TC1 1.8 (3.3) C317 0.01 1.9(1.3) R318 4.7K 2 2.9 31 30 2 1.1 (4.4) 1.7 (2) C315 10/16 R317 C314 0.1 C309 330P * 1.7(0.6) C363 39P 1.8(2.3) Q301 KTC3199-BL 5.1 C370 180P R335 18K Q302 KTC3199-BL C304 220/6.3 C318 2.2/50 2.2 (2.5) 5V R311 4.7K R313 * L303 33U * R313 330:GX910Z :REC Y SIGNAL :REC CHROMA SIGNAL :PB VIDEO SIGNAL :REC VIDEO SIGNAL 21 :PB AUDIO SIGNAL :REC AUDIO SIGNAL * ONE VOLTAGE:PB OR REC MODE TWO VOLTAGES:PB AND (REC) MODE : WAVEFORMS No. 22 C323 47/6.3 6G VIDEO 1 2.4 5G VIDEO 2 Q305 KTA1267-GR 0 4G MONO AUDIO 120K:FX970Z 470:FX970Z :PB Y SIGNAL :PB CHROMA SIGNAL R325 1K * R317 100K:GX910Z 5VT R312 C311 1.8K 180P C312 22P R310 1K D301 1SS131 L301 10U 1.3 (1.9) C351 0.1 32 Chara INS 24 4.9 L304 100U (2.3) 1.5 C316 10/16 C369 0.022 R307 330 C305 0.1 (3.4) 33 23 9 35 34 SYNC SEP SERIAL DECODER 2.2 0 (2.5) * Y-VCC 14 15 R422 560 R419 47 C424 0.1 C419 0.01 C421 0.022 13 5.1 1.5 (2.7) C417 1200P TL401 BIAS COIL To CTL/AUDIO HEADS 12 1.7 P C310 4 V.H/SW TP 6 11 1.0 R417 1K R418 27K 1 10 0 AFC DET P 90 IIC CLOCK C423 4.7/50 9 0 C368 1000P C415 22/16 R409 C4A1 4.7K 22/16 C414 0.01 8 2.4 36 1.3 P R * 5 R415 330K 7 2.4 BAL/TCI 6 0.1 (2.4) (3.3) R R 2 SYNC 37 DET 1.8 SYNC DET CLAMP ACC DET 5 2.4 Y/C MIX R NL EMPHA * R413 8.2K 4 2.5 SP 2.2 C322 47/6.3 1.6 C319 (4.7) 0.1 P R C324 0.1 4.1 39 38 PB-Y B.B FM AGC DET 3 2.4 EQ AMP REG 1/2 R P DETAIL ENH DOUBLE LIM W/D CLIP * PB/EE REC:EP/LP PB:EP 40 ALWAYS 5V R319 1K C325 1 5.1 PIC-CTL ANR P 7 41 N.C1 N.C2 P Y.LPF V/I CON FM DEM REC S-FM IN 2 2.4 Q404 KTC3199-BL R411 22K 79 REC "H" 6 5 4 3 2 1 C413 0.01 1 R408 2.2K R410 10K 2 1 PB/EE EQ AMP C326 2.8 10/16 42 3.0 DELAYED SIGNAL CLAMP NL DEEMP Y.N.R P R P PB EQ THROUGH C301 Vref 2.3V P ACC FM MOD FM PROCESSING Vref R412 1.8K Y/C SEP IN FBC P PB FM EQ 98 99 C412 0.1 Q403 KTC3199-BL P LP/EP 4.9 (4.1) 43 R 18K ALC DET REC FM EQ 0 C327 1 2.1 VCA DET R R340 97 2.4(1.6) REC FM AGC1 PB FM AGC AUDIO SIGNAL PROCESSING 29 H.AMP SW Q402 KTA1267-GR 2F 1F AGC DET RFSW/ HASW IN LINE AMP 2.4(3.3) 100 22K:FX970Z F/E GND C466 0 3.3/50 96 MUTE 1.6 1.5 C313 (2.3) 100P 44 R R S-VHS:OPEN 2.6 (2.2) 0 PB-C R 2.3 R406 C410 2.7K 0.1 * R431 4.7K:GX910Z Q401 KTA1267-GR P COMP IN A-MUTE/ C+ROT R407 22K 95 A.GND R403 6.8K R404 270 45 16 SUB LPF Q303 KTA1267-GR C328 0.047 9.5 47 Y DELAY R 10K 18K 10K * BPF1 COMP OUT 94 270 Cn-CTL D.E. 1.6 R 0 C329 0.01 48 CCD LC89981/82 DELAY PROCESSING (3.1) B-UP AMP C330 0.01 0.9 49 46 BPF2 R302 R303 R304 R431 C431 0.01 L402 6800U CCD LPF R ENV DET 93 0(0.3) * R424 0 50 C-DELAY C-LPF P 62 A.MUTE 28 C.ROTARY 24 V.H/SW C408 0.015 79 REC "H" 4.2(0) C416 2200P 30 COMP.OUT CCD GND 2.2 PB BGA AFTER R REC BGA MAIN BALANCE CONV REC FM AGC2 REC FM AGC2 DET R414 12K C375 0.1 92 R3B1 1.9 51 C COMB PB BGA BEFORE P SUB CONV XO R416 150 [FOR FX970Z] R3A3 1K Q3A2 KTC3199-BL P3D02 AUDIO PB AUDIO REC A/E (+) A/E (-) CTL (-) CTL (+) 0.2 * Q3A1 KTC3199-BL 2.6 52 R 320/321FH VCO VXO 91 C348 1/50 C350 0.1 R333 560 R3A2 C302 47K 0 53 CCD VCC D.E. NON CORR MES 2.6 54 P 1.9(4.8) R350 470 55 NTSC:H C-MAIN Cn-CTL P 89 P3D01 To CYL.HEADS R KIL B.D. 90 12 V.ENV COMB AMP AFTER 1.9(0) 1 2 3 4 5 6 P 56 SLD To SEC DET 88 4.7K:FX970Z 3.4 57 R316 150 * R3B1 2.7K:GX910Z H.A GND 5.0 58 79 REC "H" 1.9(4.8) 3.3 59 54 C.SYNC 0.1:FX970Z 3.4 60 C-VCC 320FH VXO REC REC REC APC APC AFC BEFORE ID DET NAP KIL 3.4 61 12 12 0.2 (0.5) 5.1 91 IIC DATA * C302 0.047:GX910Z H.A GND 3.5 62 12 C332 0.01 CORRE D.E. BPF 5.0 63 VXO1 PHASE ALT 0.7 [FOR GX910Z] * R337 15K:GX910Z 64 REC APC DET VXO2 P 84 J3A2 65 NTSC-M HEAD AMP RF PROCESSING * 2.7 66 PILOT BG KIL DET 0.7 C367 0.022 3.8 67 C-GND 83 18K:FX970Z CTL(+) CTL(-) To SYSCON/ SERVO SECTION 1F , 2F 0 68 SECAM DET PAL M DET ALC 0 12 R337 [FOR FX970Z] 69 2.1 (1.4) 5.0 1.9 1.3 C336 0.01 13 8 2.0 (2.9) 0.6 82 J3A1 SP A PB SP REC SP B PB LP A PB LP REC LP B PB C343 0.047 C344 0.022 10K 2.4 78 1.8 (0) A-VCC 81 0 [FOR FX970Z] To SYSCON/ SERVO SECTION 3F 16F 2.5 79 0 C3A1 0.022 [FOR GX910Z] 16F 2.4 (1.9) 5.0 Q304 KTC3199-BL C335 0.1 C338 0.022 C320 1 54 11 C340 0.033 C339 4.7/50 IC301 LA71591M X301 4.43MHz C358 1/50 C345 0.1 C303 1 R305 C306 0.01 L302 56U C307 L308 12U 27P C346 220/6.3 C354 220/6.3 R324 C373 0.1 R402 2.2M L307 100U C405 10/16 27 C406 10/16 90 R3A1 2.2K V.ENV C422 0.1 C355 0.01 91 R309 11F 12F 13F 14F 15F RF TP 24 C331 220/6.3 L306 100u C353 22P VIDEO(VPS) VIDEO(Y/C) 62 C371 0.1 * 6F 7F 8F 9F 10F C402 0.022 C401 47/6.3 R338 A.MUTE "H" V.H/SW IIC DATA IIC CLOCK DV.SYNC 28 C374 0.1 C334 220/6.3 29 R349 5.6K 3F 4F 5F R321 1.5K 79 REC "H" H.AMP SW C.ROTARY C.SYNC COMP OUT AUDIO 2 AUDIO 1 5V [FOR GX910Z] 27 DV.SYNC 5VT 5V GND 1G 2G 3G To SCART SECTION 1G 6G WAVEFORM-1 (VIDEO SECTION) 2 1 IC301 Pin 38, 31, 32 Video in 1Vp-p IC301 Pin 20 PBmode 500mvp-p 5 3 6 7 10 9 IC301 Pin 23 PB/REC mode 5Vp-p 13 IC301 Pin 7 REC mode 1.4Vp-p 8 IC301 Pin 64 PB mode 600mVp-p IC301 Pin 41 PB mode 400mVp-p 11 IC301 Pin 24 PB/REC mode 5Vp-p 14 IC301 Pin 63 PB mode 600mVp-p IC301 Pin 28 PB/REC mode 4.2Vp-p IC301 Pin 29 PB mode 2.1 Vp-p IC301 Pin 6 REC mode 2.2Vp-p 4 12 IC301 Pin 71 , 72 REC mode 340mVp-p 16 15 IC301 Pin 10 PB mode 1.8Vp-p IC301 Pin 11 PB mode 3.2Vp-p 23 IC301 Pin 51 , 52 , 54 PB mode 300mVp-p IC301 Pin 43 PB mode 400mVp-p WAVEFORM-2 (SERVO/OSD SECTION) 1 2 6 5 7 IC501 Pin 39 1V/10µS REC/PB modes (DPG) IC501 Pin 38 1V/1mS REC/PB mode (DFG) 4 IC501 Pin 31 1V/10mS REC mode (CTL+) IC501 Pin 27 1V/2mS QUE/REV modes (D.V-SYNC) IC501 Pin 24 1V/5mS REC/PB mdes (V.H/SW) 5 3 IC501Pin 32 1V/10mS REC mode (CTL–) 8 IC501 Pin 40 1V/1mS REC/PB modes (CFG) IC501 Pin 43 100mV/10µS EE/PB modes (V-IN) 6 IC501 Pin 45 500mV/10µS EE/PB modes (V-OUT) IC501Pin 54 1V/20µS EE/PB modes (C-SYNC) TRANSISTOR ILLUSTRATION ECB KRA103M KRC101M KRC103M KTA1267 KTC3198 KTC3199 ECB KTA1268 KTC3203 24 ECB ECB KTA1273 KTC2804 SCHEMATIC DIAGRAM-3 (SYSTEM CONTROL/SERVO SECTION) A MAIN(SYSCON/SERVO SECTION)C.B 12V(DRUM) 10 0.4 R524 6.8 1W 19 20 2.2K R545 2.2K VCC GND RESET 1SS133 1SS133 DJ17 [FOR GX910Z] DJ16 1SS133 1SS133 DJ08 1SS133 DJ06 DJ09 88 87 81 3 2 1 C543 2200P 4.7K 4.7K 4.7K 4.7K 5.3VA MS501 1 2 3 4 5 R575 R576 R577 R578 R547 12K R5C1 R5C2 R5C3 R5C4 1K 1K 1K 1K C502 47/6.3 77 76 75 74 24 25 26 27 28 29 30 R531 10K C533 32 1000P R5C5 1K ES501 ST5811-A,B T-UP END R557 27K LD501 DECK IR LED 2 3 RS502 4 SG233 S-UP/REEL R ES502 ST5811-A,B SUP END R564 27K Q514 KRC103M R5C7 1K 7 5 R558 22K 9 6 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 2.3(3) R562 560 4 4 38 39 40 R5B4 1K 43 45 R R5A1 55 68K R5A2 120K 2.2 R5A3 56K Q5A1 KTC103M C582 0.01 C588 4.7/50 R568 R527 680K 560 C527 180P 5 Q515 KRC103M R513 100K C564 330P C581 0.01 C535 4.7/50 H/L H/L 8 96 97 95 R5F6 1K 80 79 78 77 76 75 74 73 72 13 R5F3 15 R5F8 27K 37 R591 470 90 40 P10 41 P11 R548 100K R544 4.7K CLK DATA IN DATA OUT SHUTTLE1 SHUTTLE2 G9 15 G8 14 91 62 43 P13 44 P14 G7 13 G6 12 21 64 58 15 14 13 C576 14P 32 31 79 29 28 R5H0 27K R5G7 27K X503 17.734MHz R509 27K R518 560 1 C577 14P C519 39P L506 15U 2 6 C532 0.022 ZD503 MTZ6.2B C506 0.022 8 62 24 91 9 10 R590 1K L502 100U R517 1M 7 C5F4 0.1 C505 47/6.3 C5F8 47/6.3 ZD5F1 MTZ5.1B 87 IIC CLOCK IIC DATA A.MUTE "H" 6J 7J 8J C+ DET "H" 16:9 "H" SCART "H" To SCART SECTION 1J 8J 1 2 3 4 5 6 7 8 9 10 11 R589 1M 1J 2J 3J 4J 5J 12 R5G6 27K 56 55 54 C524 33/16 C521 0.022 R567 820 27 1F 2F 3F 4F 5F CTL(-) CTL(+) REC "H" H.AMP SW C.ROTARY 6F 7F 8F 9F 10F A.MUTE "H" V.H/SW IIC DATA IIC CLK DV.SYNC 90 43 6 54 30 12 11F VIDEO(VPS) 12F VIDEO(Y/C) 13F C.SYNC 14F COMP IN 15F 16F ONE VOLTAGE:PB OR REC MODE TWO VOLTAGES:PB AND (REC) MODE 56 R5S2 6.8K L505 100u C541 4.7/50 L501 T/W C596 0.022 C510 47/16 D502 1SS133 R519 27K C501 C500 0.047F/5.5 0.1 [FOR GX910Z] C500 470/6.3 Q503 KTA1267-GR 5.2 1C 2C 3C 4C 5C 5.3 4.4 [FOR FX970Z] R542 2.2K R583 10K 0.8 R529 10K C5S2 0.022 88 0 Q501 KTC3199 BL 0 C503 0.1 C504 220/6.3 : WAVEFORMS No. 25 66 60 L507 100U R5S3 330 V.ENV To AUDIO/ VIDEO SECTION 1F C513 0.1 0 Q5S2 C5S1 L5S1 KTC3199-BL 43P 33U C561 47/6.3 OSD VIDEO IIC CLK IIC DATA VIDEO(VPS) TU SEC "H" 6H TU SECVL "H" 7H IIC CLOCK 8H AFT 9H IIC DATA G5 C552 0.01 44 X5F1 4.0MHz VPP 16 G4 43 CS501 CST/REC.SW R5C6 1K VSS 21 42 P12 G3 42 G2 41 G1 X502 32.768KHz GND KEY RTN 0 To TUNER/IF SECTION 1H 8H VDD 18 17 IC5F1 MN12510 LED DRIVE 39 P9 40 ENA 22 63 18 90 9 91 1H 2H 3H 4H 5H R592 100 91 OSC2 20 OSC1 19 37 P7 38 P8 38 C514 18P SHUTTLE3 35 P5 36 P6 36 39 67 66 65 64 63 62 61 60 59 58 P2 34 P4 35 C571 18P C515 15P SHUTTLE4 34 P1 POWER LED R534 1M C570 18P C518 33P C512 180P R5F9 1K R5F7 1K 33 32 31 30 29 28 27 26 25 24 23 R515 270 X501 10MHz C589 82P 45 94 33 32 31 P3 2.8 0(4.9) 3.1 2.3(5.3) 5.3 0 5.3 2.5 2.5 0 0.8 1.5 0 4.6 0 5.2 5.2 0 0 0 5.2 0 5.2 5.1 0 5.2 0.4 2.4 2.5 1.4 12V(DRUM) 3 C537 0.01 R559 4.7K R5F2 15 12V(CAP) 5.3VA 0 22K 2 1 44 43 42 41 40 39 38 37 36 35 34 33 32 31 7 5V 45 * IC501 HD3977 RC06F SYSCON/SERVO PROCESS H/L H/L 8 To B FRONT-1 C.B PKM02 C534 4.7/50 R5B3 1K 9 R5F5 1K CAP ACCEL "H" 80 REC "H" 79 I-LIMIT 78 MODE SW1 77 MODE SW2 76 MODE SW3 75 MODE SW4 74 OSC2 73 OSC1 72 VSS(SYS) 71 X-TAL1 70 X-TAL2 69 TEST "H" 68 OPT RTN(CTL MON) 67 TIMER "H" 66 TSS "L" 65 16:9 "H" 64 TU SEC "H" 63 A.MUTE "H" 62 CAP.REV "H" 61 PWR CTL "H" 60 OSD"H" 59 SCART "H" 58 CST SW "H" 57 SEC/MEC "H" 56 CTL GAIN ADJ 55 C.SYNC 54 10 4fsc in/2fsc in 53 4fsc out/2fsc out 52 D OSC 51 OUT 1 C536 0.01 R560 4.7K 5.3 R556 R555 220 1 R561 560 31 2 3 RS501 4 SG233 T-UP/REEL NC NC NC FLD DATA OUT FLD DATA IN FLD CLK FLD ENA NC NC IIC DATA IIC CLK PWR FAIL STAND BY "H"(3W LED) C.SYNC(INV) NC NC NC NC R/C DRUM ADJ 3 26 5V 1 R5F1 10 NC 1 5.3 R550 220 R553 220 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 NC 2 C508 0.1 18 19 20 21 T-UP SENSOR VSS(A/D) END SENSOR T-UP REEL SUPPLY REEL SEC DET "H" NC NC AFT PG ADJ NC V.ENV KEY RTN 0 KEY RTN 1 VCC(A/D) RESET NC TU SECAM VL "H" LD (-) LD (+) C+ DET "H" VCC(SYS) NC 1 V.H/SW CAP.PWM DRUM PWM 2 D.V-SYNC C.ROTARY H.AMP SW COMP.IN 5.1V 25 8 P16 3 C507 0.1 12V(CAP) To MODE SW 7 P15 C551 0.033 6 R5G5 27K 80 R5C9 10K IC504 KIA7031P RESET R546 5.6K 5 R5G4 27K C526 47/25 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 0 2.3 2.3 2.3 5.2 5.0 2.4 1.4 2.4 0 2.0 1.4 0 1.3 1K C509 0.022 0 0 0.8 H/L H/L 3.3 1(2) 1(2) 3.2(1.6) R507 1K 2.2 0.7(0) 4(2.3) R543 100 5.3 5.3 5.3 R5B5 100 5.3 0 0 5.2 5.2 5.2 5.3 H/L H/L 2.8 2.7 0 H/L 5.2 5.0 2.3 R505 C525 47/16 To CAPSTAN MOTOR C.B PCM01 C556 0.01 4 C5F7 47/6.3 C542 680P CTL+ CTLVSS(SERVO) CTL1 CTL2 CTL3 CTL OUT DFG DPG CFG VCC(SERVO) VCC(OSD) CV IN VREF(OSD) CV OUT CHAR BIAS AFC LPF AFC OSC VSS(OSD) D OSC IN 61 3 R5H2 330 R511 1K 0 0 0 0 0 5.2 4.6 5.3 5.3 5.0 5.1 4.9 0 4.7 0 0 0 0 5.1 2.6 R523 15K VR501 220KB VCC C522 0.01 R579 56K R528 10K 9 GND 78 PG ADJ 0 1 2 3 4 5 6 7 8 C544 0.047 5.3 PMC01 C567 3900P R5E7 10K C545 0.1 R521 3.3K 1 3 4 5 6 C575 1000P R563 10K RESET 81 38 40 39 C574 1000P R535 470K R5E8 10K R569 1M C557 0.01 To LOWER DRUM C.B PDM01 1K 1K 1K D509 1SS133 C546 47/16 2 R5F0 10 R5H1 56 2.2K 3.3K 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 R506 R522 R512 F- NP NP 9G 8G 7G 6G 5G 4G 3G 2G Nx Nx Nx Nx Nx Nx P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 NP NP F+ F+ 1 1 2 3 4 5 6 7 8 9 10 0 R510 R508 1 2 3 4 5 6 7 F- 15 14 13 12 10 5.3VA PMD01 GND MODE S1 MODE S2 MODE S3 MODE S4 [FOR GX910Z] 1SS133 R586 To C FRONT-2 C.B PKM01 PMK02 R5G3 27K To LOADING MOTOR GND MOTOR GND I.LIMIT CAP.CONTROL 12V CFG CAP.REV "L" 5.1V DJ03 97 96 95 94 93 92 91 90 R525 5.6K 1 2 RC5F1 REMOCON SENSOR 5.3VA GND OTPB "H" 5VA KEY RTN 1 GND R570 4.7K R5G2 27K PML01 D.CTL M.GND DFG 12V PG GND 5.1V 1SS133 1SS133 5VT C529 0.1 R526 5.6K BIL SAP Hi-Fi ST 1 2 3 4 5 SP LP EP R5G1 27K ZD501 MTZ6.8C 0 R504 1K R581 68K 14 REC TIMER VCR M REM C520 1000P C528 0.01 C530 10/16 LD+ LD- IC503 AT24C16 EEPROM 1 2 3 4 3 PMK01 DIG5F1 R5G0 27K 9 2 GND 8 12.2 12.2 0.8 1 5.3 R5B1 1K 5.3VA IC505 KIA7042P 67 63 62 V OUT 7 2.2 92 86 VCC 6 2.2 GND VCC GND GND GND CLK GND DATA 5 0.3 94 0 0 0 0 4 0.8 5.3VA 3 0.4 R501 100 8 7 6 5 MOTOR DET DJ02 MOTOR DRIVE 0 [FOR GX910Z] R502 100 5.3 0 4.6(5.2) 4.6(5.2) 12V(DRUM) C516 0.022 GND 1 2 100 99 98 [FOR GX910Z] 90 91 DJ01 IC502 KA3082 MOTOR DRIVE 26 16F 12.3V(CAP) 12V(DRUM) -27VG -21VG(F-) -15VG(F+) 6C STAND-BY "H" 7C 5VG TIMER "H" 8C 5VT 9C 5V 10C 11C 12C 13C PWR CTL "H" 5.3VA GND To POWER SECTION 1C 13C WAVEFORM-3 SCHEMATIC DIAGRAM-4 (TUNER/IF SECTION) 1 TU701 Pin 19 (IF Signal) A MAIN(TUNER/IF SECTION)C.B L702 10U To POWER SECTION 1B 6B To SCART SECTION 1E 5E 5.3VA 1B 9V 2B 5VT 3B 33VT 4B 5V 5B GND 6B TUN.AUDIO 1E C705 0.01 2 C704 47/6.3 L705 100U C714 0.01 C7M5 10/16 2E R7M1 1K VIDEO 4E TU VIDEO 5E 1H IIC CLOCK 2H IIC DATA 3H 5.3 C7M1 100P VIDEO(VPS) 4H TU SEC "H" 5H 9H C7V7 1/50 C7V2 1 C7V1 47/16 IIC CLOCK 7H AFT 8H IIC DATA 9H 5.1 24 5.0 23 4.5 22 0 21 5.0 20 5.1 19 18 17 16 5.1 VDD1 RST 15 14 13 Data Latch Timing Generator Sync Sep/ Data Sucer Sync Detect Data Acousition 0 NC 2 3 2.6 4 2.6 5 0 6 0 7 5.2 8 5.2 5.0 9 10 4.6 0 11 3.0 C7V6 4.7/50 C7V3 C7V4 12P 12P C703 4.7/50 0 0 R706 220 SDA 4 4MB 5 SCL 6 VIDEO 7 MD TU 8 RF AGC 9 NC 3 L703 10U R707 220 C707 0.01 5.0 C710 43P 5.0 0 12 3.0 R7V5 10K R7V4 2.2K 32.3 C701 4.7/50 ZD701 MTZ33B 0 1 C7V5 0.056 10 AS 4 12 SDA 13 B+ 14 B+ 15 NC 16 TU TU701 Pin 21 (Audio Signal) 17 TP 0 18 IF 5.1 [FOR FX970Z] 0 4 2.4 3 0 19 SW 1 20 SW 2 21 AUDIO 22 SIF 2.5 2 23 AFT 1.3 24 VIDEO 0 :PB VIDEO SIGNAL :REC VIDEO SIGNAL :PB AUDIO SIGNAL :REC AUDIO SIGNAL 27 * : WAVEFORMS No. ONE VOLTAGE:PB OR REC MODE TU701 Pin 22 (SIF Signal) 5.1 VSS2 X7V1 17.734476MHz 3 11 SCL C706 470/16 VSS1 1 2.6 5.2 AFC (VCO) IIC BUS Interface 32.3 C7M6 27P Q701 KTA1267-GR V.Sync Sep. IC7V1 LC74793 C7M2 47/16 1.3 VDD2 AUDIO 0 R704 470 R7M3 1K 0.2 BB 2 5.2 5.2 R7V6 5.6K C7V8 1/50 4.6 2.5 2.9 TU SECVL "H" 6H 5.1 C7M3 43P C702 10/16 L7V1 100U 1 0 R7M5 220 L701 100U TU701 Pin 24 (Video Signal) TU701 MOD.AUDIO 3E OSD VIDEO 1H To SYSCON/ SERVO SECTION C713 47/6.3 C712 5.6P 25 NC L704 8.2U 28 SCHEMATIC DIAGRAM-5 (SCART SECTION) <FOR FX970Z> A MAIN(SCART SECTION)C.B JK901 [SCART1] AUDIO-R OUT AUDIO-R IN AUDIO-L OUT GND GND AUDIO-L IN 1 2 3 4 5 6 7 SCART H GND GND GND 15 16 17 18 19 20 21 GND GND VIDEO OUT VIDEO IN GNG 2A GND JK901 SCART1 L905 BEAD CORE 1A 21 3A 20 To POWER SECTION 1A 3A * 19 ONE VOLTAGE:PB OR REC MODE TWO VOLTAGES:PB AND (REC) MODE C958 39P R901 75 R902 75 L903 1u 18 17 16 :PB VIDEO SIGNAL :REC VIDEO SIGNAL 15 14 13 : VIDEO SIGNAL 12 11 :PB AUDIO SIGNAL :REC AUDIO SIGNAL C901 1000P 10 9 8 L901 100u R903 560 AV1 IN/OUT(TV) 12VA 8 9 10 11 12 13 14 7 6 R905 560 C903 L904 100u 1000P 5 4 3 2 R904 560 C9A1 1000P R906 560 L902 100u 1 C908 1000P D902 1SS133 L906 100u MOD.AUDIO VIDEO TU VIDEO 1E 2E 3E 4E 5E C941 10/16 R947 330 JK901 SCART2 42 41 R948 330 To TUNER/IF SECTION 1E 5E C919 82P 40 R911 75 R912 75 39 38 37 36 35 34 1G 2G 3G AUDIO 1 MONO AUDIO 4G VIDEO 2 5G 33 32 31 C911 1000P 30 29 L911 100u R913 560 AV2 IN(DECODER) TU AUDIO(L) L907 BEAD CORE C904 1000P 28 27 25 1J IIC DATA 2J R950 R949 R943 1.5K D903 1SS133 D904 1SS133 3J C958 39P 100 100 13 14 15 16 17 18 Q906 KTC3199-BL C902 470/16 C942 1/50 C912 470/16 C955 10/16 C943 10/16 C944 10/16 24 IIC CLOCK A.MUTE "H" 26 L914 100u R915 560 6G C945 10/16 VIDEO 1 To AUDIO/ VIDEO SECTION 1G 6G 12.0 19 20 21 23 C952 0.1 22 23 VCC C951 47/16 R916 560 C914 1000P R914 560 L912 100u 22 C918 1000P L916 100u C913 1000P R933 12K 24 6J C+ DET "H" R934 10K CLAMP C956 0.1/50 4J 5J IC901 BH7635S To SYSCON/ SERVO SECTION 1J 5J IC-BUS CONT. JK901 [SCART2] CLAMP 5V REG 12 C946 10/16 11 10 C947 10/16 9 8 7 GND 6 0 C948 10/16 C953 10/16 5 CLAMP VCC 4 3 12.0 CLAMP GND 2 0 C949 0.1 22 23 24 25 26 27 28 AUDIO-R OUT AUDIO-R IN AUDIO-L OUT GND GND AUDIO-L IN 29 30 31 32 33 34 35 GND GND 36 37 38 39 40 41 42 GND GND VIDEO OUT VIDEO IN GNG 7J 8J To SYSCON/ SERVO SECTION 6J 8J 1 C950 10/16 C909 43P 29 C+ GND 30 SCHEMATIC DIAGRAM-7 (FRONT-1 C.B) SCHEMATIC DIAGRAM-6 (SCART SECTION) <FOR GX910Z> A MAIN(SCART SECTION)C.B B FRONT-1 C.B PKM02 12VA 1A C951 47/16 2A GND C952 0.1 C958 39P 21 C902 470/16 3A 1 2 3 4 5 6 7 8 9 10 JK901 SCART1 L905 BEAD CORE 20 19 To POWER SECTION 1A 3A C958 39P R901 75 R902 75 L903 1u 18 17 16 GND K.RTN 0 14 13 12 11 R931 180K C906 10/16 C901 1000P R903 560 Q902 KTC3199 10 9 8 L901 100u AV IN/OUT(TV) 15 ( 7 6 R932 220K R905 560 C903 L904 100u 1000P To A MAIN C.B SYSCON/SERVO SECTION PMK02 R5A2 1.5K R5A3 2.2K SW5A1 SW5A2 REC/OTR REW/ SW5A3 PLAY R5A1 1.8K R5A4 2.7K R5A5 3.9K SW5A4 /F FWD SW5A5 STOP SW5A6 PAUSE/ STILL ) 5 4 3 R936 1K 2 C905 10/16 R904 560 R906 560 C9A1 1000P L902 100u 1 C908 1000P L906 100u D902 1SS133 C904 1000P TU AUDIO(L) MOD.AUDIO VIDEO TU VIDEO L907 BEAD CORE 1E 2E 3E 4E 5E SCHEMATIC DIAGRAM-8 (FRONT-2 C.B) To TUNER/IF SECTION 1E 5E AUDIO 2 AUDIO 1 MONO AUDIO VIDEO 2 1G 2G 3G 4G 5G Q909 KRA103M VIDEO 1 To AUDIO/ VIDEO SECTION 1G 6G 6G R921 820 R922 1K Q903 KRC103M Q908 KRC103M R R943 1.5K D904 1SS133 3J D903 1SS133 16:9 "H" 8J SCART "H" GND OTPB "H" 5.3VA GND KEY RTN 1 To SYSCON/ SERVO SECTION 6J 8J 2J Q906 KTC3199 C956 0.1/50 4J 5J To SYSCON/ SERVO SECTION 1J 5J C FRONT-2 C.B 7J PKM01 R 1J A.MUTE "H" 6J R 1 2 3 4 5 R5A6 1.8K R5A7 1.5K R5A8 2.2K JK901 [SCART1] 1 2 3 4 5 6 7 AUDIO-R OUT AUDIO-R IN AUDIO-L OUT GND GND AUDIO-L IN :PB VIDEO SIGNAL :REC VIDEO SIGNAL 8 9 10 11 12 13 14 SCART H GND GND GND 15 16 17 18 19 20 21 GND GND VIDEO OUT VIDEO IN GNG ( To A MAIN C.B SYSCON/SERVO SECTION PMK01 R5A9 120 ) SW5A7 CH UP LD5A1 SG5311 Q5A1 KRC103M R LD5A1 ONE-TOUCH PLAYBACK : VIDEO SIGNAL :PB AUDIO SIGNAL :REC AUDIO SIGNAL 31 32 SW5A8 CH DOWN SW5A9 POWER STANDBY/ON SW5A0 ONE-TOUCH PLAYBACK WIRING-1 (MAIN C.B SECTION) <FOR FX970Z> 1 2 3 4 5 6 7 8 9 10 11 12 A B C D E F G H I J 33 34 13 14 WIRING-2 (MAIN SECTION) <FOR GX910Z> 1 2 3 4 5 To CAPSTAN MOTOR PCM01 A MAIN C.B 7 9 8 To LOWER DRUM PDM01 P3D02 ANTENNA AV IN/OUT (TV) AERIAL RF OUT 8 7 R118 1 2 3 IC103 C704 L903 L905 R902 C958 L913 C904 C901 E C B E C B E C B Q908 Q903 C951 L941 REMOTE SENSOR L704 TU701 C703 Q906 B C E 1 27 25 23 21 DIG5F1 DISPLAY 19 1211 C5S1 R5S3 C507 R5C6 R545 R586 X5F1 5 PMK03 To MODE SW R5G7 R5H0 R544 CS501 CST/TAP.SW L502 C505 3 2 1 IC505 5 3 1 PMK01 GRN ORG To C FRONT 2 C.B PKM01 R5F0 CS501 R5F1 R592 R591 C502 2 1 LD5F1 MS501 35 VR501 R529 1 2 3 IC504 C506 DJ02 DJ03 R548 C552 R570 C520 R504 DJ08 R5C9 DJ01 R5F5 R542 E C B Q501 R531 R583 6.2B DJ06 PG.ADJ C500 C509 1 C5F8 7 L5S1 R5S2 Q503 5 1 R5G5 R5G6 R5G4 R5G3 9 C535 R590 R5C7 R508 C516 R502 R510 C589 R501 C556 4 3 R5F8 30 11 29 C537 R564 C510 C5F4 23 PMK04 31 D903 C9A1 R943 B C E IC503 R5F9 33 R5G0 3433 DJ016 DJ017 R555 3 DJ09 R5G1 R5G2 DJ10 3837 R558 R5E7 R5E8 C582 5 X501 R518 X502 R511 L506 C518 R517 C519 RC5F1 2 1 C5S2 R550 R5B4 R559 R5B5 C557 D502 20 15 10 1 4 IC5F1 44 3 To B FRONT 1 C.B PKM02 C532 25 75 80 R515 R534 C561 C521 C501 30 60 65 R581 R5B1 R5C4 C576 8 R5F6 12 R5C1 R5C2 R5C3 X503 R589 R5H2 2 C577 X502 PMK02 7 R5F7 R523 R521 R507 R562 51 70 1 MS501 C522 R5B3 55 3 1 RS501 R553 C124 4 C571 3 Q515 B C E 5 C541 5 6.2B B C E Q5S2 RS502 15 R503 IC501 DJ11 C514 C515 DJ12 C570 Q160 R577 R576 R575 2 C508 R543 ZD503 C533 C574 C567 C575 R561 R528 C320 C536 R5C5 D151 R155 R172 R162 R161 R578 R509 22 R560 Q152 F105 E Q514 C504 B C E C581 R556 R165 R164 Q154 To FULL ERASE HEAD P3D03 ZD9A1 R547 40 1 P3D03 R921 24 Q909 R320 R425 C373 R322 23 1 C952 C339 C341 C340 C337 C335 C334 19 21 2 R430 R579 95 3 Q701 C712 C425 R428 R427 C358 0 R5F3 R152 B C E B C E C588 E C B Q5A1 R5A2 R567 C513 C524 C512 R5A1 C5F7 5 18 R922 C422 C403 X301 R321 C542 7 14 C942 C405 R402 R324 C343 60 55 C330 L306 Q304 E C B 10 L105 R151 R159 R158 Q159 R519 C503 J 10 9 R707 16 R323 81 R166 R527 C564 R513 C153 L505 R706 12 L701 LD501 C159 C156 Q162 B C C710 8 10 C707 R906 C905 R904 C345 65 C328 C329 51 C351 L401 C342 85 5.1B B C E C350 C302 R333 C348 75 70 C406 C344 90 R5H1 R170 R5F2 R512 D153 C7M6 L906 L902 C903 L904 R905 R931 R932 Q902 Q403 R936 R413 R412 C906 Q404 R409 R408 R431 R417 1 5 10 15 20 80 C346 R568 C527 35 R169 R154 R557 Q158 R171 R156 C121 ZD151 L104 L103 R114 D154 D152 R5A3 C596 50 B C E R7M5 D904 R157 C534 E C B E C155 C B D107 R167 F103 B E E C118 C C C B B E Q156 Q157 Q155 C7M2 C956 45 H R7M3 C701 Q153 E C C B B Q161 Q165 C7M3 C714 C7M4 5 C909 40 ZD153 B C E ZD104 C713 C7M5 D109 D108 FR02 C120 C119 C157 C117 C7M1 3 L705 ES502 Q151 C151 B C E E ZD152 C705 R903 R505 31 C152 E C B 1 7 ES501 C116 L702 L703 R7M1 R120 R119 D106 C706 C902 R121 C115 21 18 20 R901 C402 25 30 R317 C352 C322 C372 C319 C324 R325 C315 C374 L309 C376 C543 C431 C408 L402 R310 R312 C311 C369 R316 C314 R422 C421 C317 C316 C318 C326 C325 R303 1 R546 17 19 16 R704 1 3 P3D01 2 R326 C338 3 2 C336 4 C327 C333 6 R522 5 15 14 L901 C354 C332 C331 C371 9 7 R302 R116 10 8 C114 R117 12 11 D105 13 R419 PMC01 D155 15 R304 R340 C526 R319 T101 E Q405 C313 C551 6 E C B 13 12 L307 50 4 R318 E C B IC502 C368 BC102 D102 C106 L524 Q303 Q305 11 8 10 C401 IC301 45 2 R526 D301 40 2 C105 1 5 3 1 P3D02 C528 9 10 C312 2 6 D902 R3B1 35 3 7 4 4 9 C702 C417 C412 31 D104 1 C323 R525 C530 4 C529 5 L304 R103 C111 R104 6 2 7 81 IC102 TL401 5 85 PML01 ZD501 5 L303 R313 3 C908 90 3 6 C305 03A2 B C E 95 1 C122 4 1 2 3 4 3 R415 R416 C3B1 C416 C303 R418 B C E 0 1 C525 IC101 R337 R420 B C E Q302 L301 E C R311 B C310 B C E C415 10 1 2 C112 C367 C544 R109 D C375 R421 D509 C103 R335 C306 C304 C418 C419 R569 C545 C370 R563 BC101 C109 R102 C R506 R535 C353 R308 C301 C424 C414 R309 C309 C413 R414 1 R350 R403 R424 C363 R101 L308 R338 R341 R306 R349 C423 R3A3 C420 FH02 E C B 7 B C E JK901 6 1 C355 R307 R305 C307 L302 Q301 R404 C410 L907 2 PMD01 L405 C102 BD101 E C B Q401 E C B C4A1 F101 R411 C466 R406 Q402 B R491 R410 FH01 R407 L102 C101 PW101 Q164 14 P3D01 PMD01 C546 I 13 BL R490 G 12 To CYL.HEADS JK901 A F 11 10 To CTL/AUDIO HEADS PML01 PMC01 BR 6 To LOADING MOTOR 36 WIRING-3 (FRONT-1 C.B) 1 2 3 4 5 6 B FRONT-1 C.B A SW5A1 SW5A1 REC/OTR SW5A6 PAUSE/STILL / B SW5A6 SW5A2 R5A2 SW5A3 SW5A2 /REW R5A1 R5A5 R5A3 C R5A4 SW5A4 SW5A4 /F FWD SW5A3 PLAY SW5A5 STOP/EJECT / SW5A5 D 10 9 7 5 3 1 PKM02 E To A MAIN C.B PMK02 WIRING-4 (FRONT-2 C.B) F C FRONT-2 C.B To A MAIN C.B PMK01 PKM01 5 3 1 G Q5A1 E C B C5A1 R5A9 LD5A1 H R5A8 SW5A0 R5A6 SW5A0 ONE-TOUCH PLAYBACK SW5A9 POWER STANDBY/ON R5A7 I J SW5A7 SW5A8 SW5A7 SW5A8 CHANNEL 37 SW5A9 7 IC DESCRIPTION IC, HD3977RC06F Pin No. Pin Name I/O End sensor to detect the tape’s terminal (Lead taps section). TAKE UP 1 SENSOR Description I If “H” is detected signal in the REW, REV modes, the mechanism stops and ejects the cassette automatically. 2 3 VSS (A/D) END Ground. I SENSOR End sensor to detect tape’s terminal (Lead tape section). If “H” signal is detected in the FF mode, then REW mode will occur automatically. 1. When the tape is transporting. Reel pulses are input. 2. If the tape is transporting and take-up reel pulses are not input during regular time, the unit stops at STOP point automatically. 4 TAKE UP REEL Each operating mode Sec PLAY, REC SP=3 EP/LP=6 FF, (REW) 2 CUE, (REV) 1 I 3. Distinguishes the tape type, counts the tape remaining and reduces the tape speed at the end of FF/REW modes. 1. When the tape is transporting, Reel pulses are input. 2. Distinguishes the tape type, counts the tape remaining and reduces the tape speed at 5 SUPPLY REEL I the end of FF/REW modes. 3. If supply reel pulses are not detected, FF/REW mode is not operating normally. And the unit stops at stop point automatically. (Refer to table of pin 17.) 6 SED DET “H” I System detect for B/G or SECAM in VV/EE mode. (from SECAM I.C) 7 NC “L” – Not connect 8 NC “R” – Not connect Port to detect AFT (+)’s state during tuning. When more than 4V, is detected by AFT 9 AFT I (+) detector. Detects AFT (–)’s state during tuning. When less than 0.96V, is detected by AFT (–) detector. 10 PG ADJ I A DC bias level set by VR501 determines the pulse width of PG M.M for H. S/W 30 switching interval. 11 NC – Not connect. 1. Reference input signal to perform auto tracking mode. Video envelope (F/F) signal is input through LPF. 2. Perform auto tracking mode by sampling video envelope signal which is input 12 V.ENV I during a period of head switching and changing servo tracking data to obtain maximum value. Note : When the DC level of the envelope is at its maximum, it is considered tracking properly. 13 KEY RTN 0 I KEY RTN 0 38 Pin No. Pin Name I/O Description No. KEY NAME A/D RANGE 1 SP/EP 0.0V ~ 0.45V 2 CH UP 0.46V ~ 0.96V 3 CH DOWN 0.97V ~ 1.47V 4 STOP/EJECT 1.48V ~ 1.97V 5 REC/ITR 1.99V ~ 2.48V KEY RTN1 No. 14 KEY RTN 1 I KEY NAME A/D RANGE 1 PAUSE 0.0V ~ 0.45V 2 FF 0.46V ~ 0.96V 3 REW 0.97V ~ 1.47V 4 PLAY 1.48V ~ 1.97V 5 POWER 1.99V ~ 2.48V 1. Input detector port of A/D input key. Samples 256 steps with AVcc in the center and confirms which key is pressed by the input voltage. 2. Key voltage table. 3. Excluding above item’s key sfter receiving, detecting and amplifying the remocon Data from the remocon receiver (RCSF1), decodes input signals from µ-COM (pin 82), performs its key operation. 15 VCC(A/D) – A/D Vcc. 1. Initially 5.3 VA is applied to Vcc pin 22 of µ-COM. This pulses is applied to clear the RAM inside the µ-COM and to reset programs to 0000H in ROM. 2. Reset timing pulse. 16 RESET I Vcc t 5.3VA 3.1V 1.5V RESET PULSE t RESET Period 17 NC – Not connect 18 TUNER SECAM VL“H” O Now TUNING BAND is SECAM VHF-L. (to TUNER) 1. Output signal to IC502 for control of the loading motor’s direction of rotation. 19 2. Control table of loading motor’s driving direction. LD (–) O 20 LD (+) 21 C+DET “H” I Pin 19 Pin 20 Rotation of Loading Motor H H Brake Mode. H L Reverse Direction. L H Forward Direction. Now input signal is CANAL/PREMIER. (from SCART 2) 39 Pin No. Pin Name I/O Description 22 Vcc (SYS) – SYSCON Vcc. 23 A.H.S/W 30 O Not connect Pulses output for switching video head A and B. - Produces PG M.M pulses internally by using inputted DPG, DFG pulses to pin 38, 39. 24 V.H.S/W O - Produces video head switching 30 Hz pulses by sychronizing at edge point of first PG. M.M.(PG monostable multivibratior) - Produces audio head switching 30 Hz pulses by synchronizing at edge point of second PG.M.M. - Output pulses (PWM waveform) for controlling capstan motor speed and phase; 25 CAPSTAN PWM O control feedback voltage which is inputted to the capstan motor driver IC. - Output pulses (PWM waveform) for controlling capstan motor stop and drive during slow mode. 26 DRUM PWM O Output pulses (PWM waveform) for controlling drum motor speed and phase; control feedback voltage which is inputted to the drum motor driver IC. 27 D.V. SYNC. O Provides an output sync signal to prevent the picture from rolling upward or downward, when the video track is not being scanned in the search mode. 28 COLOR ROTARY O A pulse to control phase of color at Y/C circuit. 29 HEAD AMP S/W O Apulse for switching the HEAD SP and EP on the DRUM. 30 COMP IN I A reference signal for switching video head (SPA, SPB, EPA, EPB) on the drum in search the mode. 31 CTL (+) CTL pulse is outputted at recording, CTL pulse is inputted at playback. Functions I/O 32 CTL (–) 33 Vss (SERVO) 34 CTL 1 35 CTL 2 36 CTL 3 37 CTL OUT which control Capstan motor phase at playback, check tape speed, Viss and Real time counter are performed by using CTL pulse (input/output). – I/O Servo circuit GND in the µ-COM. Port for gain (Amp) control of CTL pulse during recording and playback. D.FG pulse input according to rotation of drum motor. 38 D.FG I Produces Audio/Video Head S/W 30Hz by using these pulses. And it is used as a comparison signal for speed control of the drum motor. One D.PG pulse is generated for each rotation the drum motor and inputted to µ-COM. 39 D.PG I When producing Head S/W pulses, D.PG pulse is used as reference point, and it is used as comparision signal when controlling drum motor phase. C.FG pulses are generated by the rotating capstan motor and are inputted to µ-COM. 40 C.FG I When checking tape speed and controlling. The capstan motor phase, These CFG pulses are used as comparison signal. 41 Vcc (SERVO) I Vcc for servo circuit in the µ-COM. 42 Vcc (OSD) I Vcc for OSD circuit in the µ-COM. 43 CV IN I When the OSD display function is activated both video and text are present, when in the EE or PB modes. 40 Pin No. Pin Name I/O 44 Vref (OSD) – GND. 45 CV OUT O The video signal is output to the RF modulator and line output jack. 46 CHAR BIAS – GND. 47 AFC LPF 48 AFC OSC 49 Vss (OSD) – GND. 50 DOSC IN I OSD DOT CLOCK oscillator. (OSD charactor oscillator) 51 DOSC OUT O Determining the horizontal position (left or right) of OSD. 52 4fsc OUT O Oscillator for OSD Sync. signal. 53 4fsc IN I Generating a blue background. I Description Horizontal sync is used to lock the OSD. (Reduce Jitter) - Receives composite signal from Y/C circuit. 54 COMPOSITE SYNC. I - Separates V-sync and H-sync in the OSD internal block. - The sync signal determines the character position of OSD. 55 CTL GAIN ADJ O Level control for PB CTL. (to CTL control circuit) 56 SHC/MEC “H” O Y/C processing of Video signal at SCAM/MESECAM. (to Y/C) 57 CST IN I 1. Port to detect CST(cassette tape) switch input state. 2. With CST S/W input state, determaines whether CST tape is inserted or not. 58 SCART “H” O SCART 8 pin level control to GND or 12V. (to SCART 1) 59 VIDEO Mute “H” O High “H” applied, turns on the OSD or POWER. 1. A signal to switch voltages (5.3V, 12V)on/off whitch is controlled by the power POWER 60 CONTROL “H” O key. 2. Outputs “H” in power On mode. Outputs “L” in power Off mode. 61 CAPSTAN O REVERSE A signal to control capstan motor’s direction of rotation. “L” output = reverse direction. “H” output = forward direction. 1. Outputs “H” to mute audio signal in search mode and without sync signal. 62 AUDIO MUTE “H” O 2. Outputs “H” to eliminate pop noise generated in each mode during early switching point (Approx. 500ms) (EE/VV, TUNER/LINE, POWER ON/OFF, CH. UP/DOWN etc.) 63 TU SEC “H” O Now TUNER system is SECAM-L. (to TUNER) 64 16:9 “H” O SCART 8 pin level control to GND or 7V. (to SCART 1) 65 TSS “L” O Output chip enable signal for ACSS IC (IC5A1) 66 THER “H” O POWER switching of VPS I.C Vdd in POWER off state. 67 OPT RITC I (CTL MON) 1. Outputs “H” to mute speakez. 2. Outputs “H” to eliminate pop noise generated in speakez. 68 TEST (GND) – GND. 69 X-TAL 2 O 1. 32.768 kHz oscillator is used as standard clock for clock display. 70 X-TAL 1 I 2. When Vcc supplied, oscillation occurs. 71 Vss – µ-COM main ground. 72 OSC 1 I 1. 10MHz oscillator is used to generate the standard clock used to operate the u-COM. 2. When Vcc is applied, Oscillation occurs. (But, when “L” is applied to pin 89 in 73 OSC 2 O power failure, Oscillation stops.) 41 Pin No. Pin Name I/O Description 1. Port to ditect the mechanism’s position. MODE SW3 I 76 77 78 MODE SW2 MODE SW1 I-LIMIT I No. MODE SW4 MODE SW3 MODE MODE SW2 SW1 DECK POSITION NAME 1 L H L H RETURN 2 L L L H EJECT 3 L L H L ULC 4 L H H L LOADING START 5 H H L L LOADING END 6 H L L L TUNE 7 H L H H REV 8 H L H H PLAY 9 H L L H STOP 10 H H L H FF, REW 11 H H H H PASS LOADING 75 2. Deck and Mode SW Positions. MODE SW4 UNLOADING 74 1. Input signal for stopping capstan motor. 2. When this port inputs “L”, the capstan motor stops. 1. When REC mode is operaing normally, outputs “H”. 79 REC “H” O 2. Switched to REC mode by operating audio, Y/C pre-amp. 3. Outputs “H” and record audio, video signals on the tape. 80 CAP ACCEL “H” O Pulse output to control capstan motor in slow mode. 81 DRUM ADJ O Pulse output to control drum motor in slow mode. 1. This pin receives remocon data through RC901, which amplifies and detects the 82 R/C I R/C signal. 2. After input signal is decoded in u-COM (IC501), and performs related key operation. 83 NC 84 NC 85 NC 86 NC 87 COMPOSITE – I SYNC. (INV) 88 STAND BY “H” Not connect 1. Input C-Sync (composite sync) to confirm whether video signal is present or not. 2. Confirms by counting 1H (63.5µsec) horizontal sync for a fixed time period. O Power switching of DIGITRON in 3W mode. 42 Pin No. Pin Name I/O Description 1. When a power failure is detected, this pin goes “L” and the following sequence of events occurs. 2. Power failure detector timing sequence. AC POWER ON AC POWER OFF Vcc for (Back-up) t AVcc No (Back-up) t 5.3VA 89 POWER FAIL I Power failure signal t 10MHz OSC t 36.768kHz OSC t Reset pulse t Power failure compensation relation Normal operation state Power failure Power failure compensation compensation cancel state state (µ-COM memory loss state) 90 IIC O A reference CLOCK for Hi-Fi, TU/IF, MTS, SPEAKER 91 IIC O A reference DATA for Hi-Fi, TU/IF, MTS, SPEAKER 92, 93 NC – Not connect 94 FLD ENABLE O Outputs chip enable signal for FLD Drive IC (IC5F1). 95 FLD CLOCK O Outputs clock signal to operate FLD Drive IC (IC5F1). 96 FLD DATA IN I 97 FLD DATA OUT O 98 ~ 100 NC O Serial interface signals for FLD Drive IC control. Not connect 43 ADJUSTMENT Test Equipment • Oscilloscope • AC Millivolt Meter • Test Tape TTV-P1 Adjustment Location A MAIN C.B (TOP VIEW) W317 W318 H/SW TU701 P3D01 P3D02 IC502 T101 IC301 PMC01 IC501 VR501 PG ADJ. IC503 IC7VI IC5F1 PMK02 44 1. Servo Adjustment 1) PG Adjustment MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION PLAY (TTV-P1) VIDEO OUT H/SW (W317, W318) VR501 6.5 ± 0.5H • Adjustment Procedure 1. Insert the PAL SP Test Tape (TTV-P1) and play. Note - Adjust the distance of X, pressing the Tracking(+) or Tracking(-) when the “ATR” is blink after the PAL SP Test Tape is inserted. 2. Connect the CH1 of the oscilloscope to the H/SW (W317, 318) and CH2 to the Video Out for the VCR. 3. Trigger the mixed Video Signal of CH2 to the CH1 H.SW (W317, W318), and then check the distance (time difference), which is from the selected A(B) Head point of the H.SW(W317, W318) signal to the starting point of the vertical synchronized signal, to 6.5H ± 0.5H (412µs, 1H=63.5µs). • WAVEFORM H/SW 6.5H(412µs) Composite VIDEO 45 4 7 FRPNT-2 C.B A 3 2 A 1 FRPNT-1 C.B A B 6 46 DIG5F1 5 8 TU701 12 C 11 B 10 MAIN C.B 1SCART [For GX910Z] 2SCART [For FX970Z] B C 9 B MECHANICAL EXPLODED VIEW 1/1 MECHANICAL MAIN PARTS LIST 1/1 REF. NO ! PART NO. 1 1 2 2 3 KANRI DESCRIPTION NO. S7-21R-F09-4E0 PANEL ASSY FRONT<910Z> S7-21R-F09-4F0 PANEL ASSY FRONT<970Z> S7-20R-F07-2E0 PANEL,FRONT<910Z> S7-20R-F07-2F0 PANEL,FRONT<970Z> S4-426-81A-000 SPRING DOOR 4 4 5 5 6 S5-80R-003-3F0 S5-80R-003-3G0 S5-50R-021-0A0 ——— S2-10R-002-3D0 DOOR CST<910Z> DOOR CST<970Z> COVER BOTTOM<910Z> COVER BOTTOM<970Z> FRAME MAIN 7 ——— 7 ——— 8 S1-10R-012-8K0 9 S4-10R-CHD-01A 10 S7-21R-D02-3M0 DECK ASSY D33 2HD<910Z> DECK ASSY D33 4HD<970Z> CASE TOP POWER CORD PANEL ASSY<910Z> 10 11 12 A B S7-21R-D02-3L0 S1-11R-008-9B0 S9-30R-013-3A0 S3-530-51E-000 S3-530-51A-000 PANEL ASSY<970Z> CASE ASSY HOLDER DIGITRON SCREW,SPECIAL 3-12 SCREW,SPECIAL C S3-531-36A-000 SCREW,SPECIAL(FBK) COLOR NAME TABLE Basic color symbol Color Basic color symbol Color Basic color symbol Color B Black C Cream D Orange G Green H Gray L Blue LT Transparent Blue N Gold P Pink R Red S Silver ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange 47 031 024 024 010 48 504 [For FX970Z] 017 012 [For GX910Z] 011 022 401 401 001 401 019 018 003 [For GX910Z] 003 [For FX970Z] 002 023 A01 014 004 016 A03 406 409 406 007 406 013 006 005 032 028 015 504 029 025 020 A04 027 026 021 008 009 A02 MECHANISM EXPLODED VIEW 1/3 MECHANISM MAIN PARTS LIST 1/3 REF. NO DRUM ASSY SUB D33-2CH<910Z> DRUM ASSY SUB D33<970Z> MOTOR(MECH) HOLDER FRC<910Z> HOLDER FRC<970Z> 024 024 025 026 027 KANRI DESCRIPTION NO. S2-61R-000-8A0 ARM ASSY IDLER<910Z> S2-61R-000-9A0 ARM ASSY IDLER-J<970Z> S8-10R-005-3A0 BRACKET L/D MOTOR S6-81R-000-7A0 MOTOR ASSY L/D S4-70R-002-5A0 GEAR WHEEL 004 S0-06R-001-4A0 005 ——— 006 ——— 007 ——— 008 S9-70R-004-3A0 CAP,FPC CAP,A CLEANER ROLLER CLEANER ARM CLEANER SPRING T/UP 028 029 031 032 401 S4-08R-000-2A0 S2-61R-001-1A0 S9-70R-005-2A0 S1-41R-000-2A0 87-261-071-410 009 010 011 012 013 S2-60R-001-1A0 S7-70R-000-4A0 S2-61R-000-4A0 S0-41R-000-3A0 S0-41R-000-4A0 ARM T/UP BAND ASSY TENSION(MECH) ARM ASSY TENSION BASE ASSY P2 BASE ASSY P3 406 87-744-094-410 409 87-741-095-410 504 S3-540-01B-000 A01 ——— A01 ——— SCREW,PAN HEAD 3.0-6.0 SCREW,PAN HEAD 3.0-8.0 WASHER,P.S 3.1-6-0.5 DRUM ASSY D33-2CH<910Z> DRUM ASSY D33-4CH<970Z> 014 015 016 017 018 S0-41R-000-7A0 S8-70R-000-1A0 S0-41R-000-5A0 S4-08R-000-1A0 S9-70R-005-4A0 BASE ASSY P4 OPENER LID BASE ASSY A/C HEAD REEL S SPRING SB A02 ——— A03 S2-61R-000-3A0 A04 ——— ARM ASSY ARM ASSY CLEANER BRACKET ASSY L/D MOTOR 019 020 021 022 023 S4-21R-000-3A0 S9-70R-005-3A0 S4-21R-000-4A0 S5-238-33B-000 S9-80R-001-0A0 BRAKE ASSY S SPRING TB BRAKE ASSY T HEAD FE D33 SUPPORTER CST 001 001 002 003 003 PART NO. KANRI NO. S7-23R-010-4A0 S7-23R-010-5D0 S6-80R-B00-04A S9-30R-010-6A0 S9-30R-010-7A0 DESCRIPTION REF. NO 49 PART NO. REEL T ARM ASSY PINCH SPRING TENSION CHASSIS ASSY PAN HEAD SCREW 2.6-4 053 054 426 060 517 50 062 517 061 032 063 055 518 051 056 052 057 058 059 A14 410 518 064 077 066 067 065 070 A11 078 426 069 068 A12 079 073 426 074 075 071 A13 076 072 [For FX970Z] MECHANISM EXPLODED VIEW 2/3 MECHANISM MAIN PARTS LIST 2/3 REF. NO PART NO. KANRI NO. DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION NO. ——— LEVER P2 ——— BRACKET JOG<970Z> ——— LEVER JOG<970Z> ——— LEVER SLOW<970Z> S9-70R-004-9A0 SPRING JOG<970Z> 032 051 052 053 054 S1-41R-000-2A0 S4-00R-000-5A0 S6-80R-A00-03A S9-74R-001-8A0 S4-70R-003-7A0 CHASSIS ASSY BELT CAPSTAN MOTOR(MECH) GUIDE RACK F/L GEAR RACK F/L 070 071 072 073 074 055 056 057 058 059 S4-70R-003-3A0 S4-70R-003-2A0 S4-70R-003-6B0 ——— S9-70R-005-9A0 GEAR DRIVE GEAR CAM GEAR CONNECT BRAKE CAPSTAN SPRING CAPSTAN 075 ——— 076 ——— 077 S3-00R-015-7A0 078 S5-10R-002-2A0 079 S0-40R-001-8A0 GEAR JOG<970Z> ARM JOG<970Z> PLATE SLIDER LEVER TENSION BASE TENSION 060 061 062 063 064 S5-10R-002-5A0 S2-65R-000-2A0 S4-70R-004-4A0 S9-70R-005-1A0 S4-70R-003-4A0 LEVER F/R CLUTCH ASSY GEAR ASSY UP/D SPRING UP/D GEAR SECTOR 410 426 517 518 A11 SA-PF0-262-218 87-261-094-410 SW-ZZR-000-4B0 SW-ZZR-000-4A0 S4-70R-002-8A0 SCREW,PAN HEAD 2.6-6.8 PAN HEAD SCREW 3-6 WASHER STOPPER WASHER STOPPER GEAR ASSY P3 065 066 067 068 069 ——— ——— ——— ——— ——— LEVER P3 SPRING L/D GEAR P3 GEAR P2 SPRING L/D A12 S4-70R-002-6A0 A13 S8-11R-001-2A0 A14 ——— GEAR ASSY P2 BRACKET ASSY JOG<970Z> BRAKET ASSY CAPSTAN 51 101 426 102 A24 110 103 52 116 115 111 407 104 105 A21 100 112 407 113 106 114 107 A23 108 032 109 426 A22 MECHANISM EXPLODED VIEW 3/3 MECHANISM MAIN PARTS LIST 3/3 REF. NO 032 100 101 102 103 PART NO. KANRI DESCRIPTION NO. S1-41R-000-2A0 CHASSIS ASSY S3-01R-002-9A0 PLATE ASSY TOP S8-10R-005-6A0 BRACKET SIDE(L) ——— LEVER STOPPER(L) ——— HOLDER SIDE(L) 104 S9-74R-001-9A0 105 ——— 106 ——— 107 ——— 108 ——— GUIDE CST HOLDER CST HOLDER SIDEE(R) LEVER STOPPER(R) BRAKET SIDE(R) 109 110 111 112 113 OPENER DOOR ARM F/L(L) SPRING F/L(L) BODY F/L SPRING F/L(R) ——— ——— ——— ——— ——— REF. NO 114 115 116 407 426 PART NO. KANRI DESCRIPTION NO. ——— ARM F/L(R) S9-70R-005-0A0 SPRING SWITCH S5-10R-002-0A0 LEVER SWITCH 87-841-034-210 SCREW PAN HEAD 2.0-5.0 87-261-094-410 PAN HEAD SCREW 3-6 A21 S9-31R-001-5A0 A22 S8-11R-001-4A0 A23 S2-61R-001-0A0 A24 ——— 53 HOLDER ASSY CST BRACKET ASSY ARM ASSY F/L LEVER ASSY SWITCH DECK MECHANISM PARTS LOCATIONS • Top View Pracedure Starting No. Bracket Side 'L' 5 6 Bracket Assembly Door Plate Assembly 2 Top 2 2,3,4 7 Arm Assembly F/L Opener Door Lever Assembly 8 S/W Drum Assembly 1 19 Opener Lid Support CST 17 18 Base Assembly P4 41 Base Assembly P3 Base Assembly P2 42 Brake Spring S Lever Assembly S/W 8 Plate Assembly Top Two Hooks A-2 3 Holder Assembly CST Chassis Hole A-2 4 Guide CST 2 Hooks A-2 5 Bracket Side (L) 1 Screw A-2 1 Screw A-2 Chassis Hole A-2 2,3,4,5 8 Lever Assembly S/W Chassis Hole A-2 9 Arm Assembly Cleaner Chassis Embossing A-3 10 Head F/E 2 Hooks A-3 11 Base Assembly A/C Head 1 Screw A-3 12 Brake Assembly S Chassis Hole A-4 2,3 13 Brake Assembly T Chassis Hole A-4 2,3,12, 14 Arm Assembly Tension Chassis Hole A-4 2,3,12,14 15 Reel S Chassis Shaft A-4 2,3,13 16 Reel T Chassis Shaft A-4 17 Support CST Chassis Embossing A-5 18 Base Assembly P4 Chassis Embossing A-5 19 Opener Lid Chassis Embossing A-5 19 20 Arm Assembly T/Up Chassis Embossing A-5 19 21 Arm Assembly Pinch Chassis Shaft Pracedure Starting No. • Bottom View 22 23 24 22,24 25 22,24 26 27 28 28 29 28, 29 30 28, 29 31 28, 29, 30 32 28, 29, 30, 31 33 34 35 36 22, 24, 25, 27 37 28, 29, 31, 35 36 22, 24, 25, 27 28, 29, 31, 35 38 36 35 39 35, 39 40 35, 39, 40 41 35, 39, 40, 41 42 1, 2 43 22 39 Gear Assembly P3 Motor Capstan 23 Gear Connector 33 40 Gear Assembly P2 Gear Cam 32 Brake Assembly 30 Capstan Belt Capstan 22 Gear Drive 31 36 Base Tension 35 Gear Sector 38 Lever Tension 37 Plate Slider Guide Rack F/L 28 27 Bracket Assembly Jog Gear Rack F/L 29 Clutch Assembly D33 24 Lever F/R 25 2 Bracket Assembly Door 16 Reel T Brake Spring T 3 Screws , Cap FPC A-1 Arm Assembly F/L 13 Brake Assembly T Reel S 15 Drum Assembly 6 43 Arm Assembly ldler Jog Arm Assembly 14 Tension Band Assembly Tension 1 7 20 Arm Assembly T/Up Brake Assembly S 12 26 Gear Assembly H-Up/D NOTE : When reassembly perform the procedure in the reverse order. 1) When reassembling, confirm Mechanism and Mode Switch Alignment Position (Pefer to Page 4-14) 2) When disassembling, the Parts for Starting No. Should be removed first. 54 Figure 2,3,4,5,6 9 Arm Assembly Cleaner 34 Bracket Assembly L/D Motor 11 Base Assembly A/C Head 21 Arm Assembly Pinch Fixing Type 2,3,4 4 Guide CST 3 Holder Assembly CST Head F/E 10 Part Part Belt Capstan Motor Capstan Clutch Assembly D33 Lever F/R Gear Assembly H-Up/D Bracket Assembly Jog Guide Rack F/L Gear Rack F/L Brake Assembly Capstan Gear Drive Gear Cam Gear Connector Bracket Assembly L/D Motor Gear Sector BaseTension Plate Slider Fixing Type A-5 Figure Chassis Shaft 1 Washer Chassis Shaft Chassis Shaft 3 Hooks 3 Washers 1 Screw Chassis Shaft A-6 A-6 A-6 A-6 A-6 A-7 A-7 A-7 A-7 A-8 A-8 A-8 A-8 A-9 A-9 A-9 Lever Tension Chassis Hole A-9 Gear Assembly P3 Gear Assembly P2 Base Assembly P3 Base Assembly P2 Arm Assembly Idler Jog 2 Hooks 2 Hooks Chassis Hole Chassis Hole 1 Hook A-10 A-10 A-10 A-10 A-10 3 Screws 1 Washer 1 Hook 2 Washers 1 Screw 1Screw DECK MECHANISM DISASSEMBLY (S2) Stator (S2) (S3) Drum Motor (S3) Rotor Drum Sub Assembly (Fig. A-1-1) Drum FPC (S1) (S1) Optional Parts Holder FPC or (only for 2HD Models) or Holder FPC Holder FPC (only for 4HD-Mono Models) H1 (only for 4HD-Hi-Fi Models) Cap FPC (Fig. A-1-1) Fig. A-1 1. Drum Assembly (Fig. A-1-1) (Fig. B-1) 1) Unhook the (H1) on the back side of the Chassis and separate the Cap FPC. 2) Remove three Screws (S1) and lift up the Drum Assembly. 3) Remove two Screws (S2) and Separate the Stator of Drum Motor. 4) Remove two Screws (S3) and Separate the Rotor of Drum Motor from the Drum Sub Assembly. Cap FPC Drum FPC NOTE Holder FPC (1) When reassembling Cap FPC, two Holes of Drum FPC are inserted to the two Bosses of Holder FPC correctly. (Refer to Fig. B-1) Figure in the opposite direction 55 DECK MECHANISM DISASSEMBLY H1 H2 Plate Assembly Top (A) (B) (Fig. A-2-1) Holder Assembly CST Lever Stopper (L) Lever Stopper (R) (Fig. A-2-2) Arm Assembly F/L Arm F/L (Fig. A-2-6) (S2) Lever Assembly S/W (Fig. A-2-7) (H5) Bracket Side (L) (S1) (Fig. A-2-4) Groove Gear Rack F/L Groove (Fig. A-2-5) Guide CST Bracket Assembly Door (Fig. A-2-3) H3 H4 Fig. A-2 56 DECK MECHANISM DISASSEMBLY 2) Remove the Screw (S2) and disassemble the Bracket Assembly Door in the front. 2. Plate Assembly Top (Fig. A-2-1) 1) Unhook the (H1) and separate the Left Side. 2) Unhook the (H2) and lift up the Plate Assembly Top. 6. Arm Assembly F/L (Fig. A-2-6) 1) Push the Arm Assembly F/L to the left and lift up it. NOTE NOTE (1) When reassembling, confirm (A),(B) Part of the Plate Assembly Top is inserted to the (L),(R) Grooves of the Bracket Side(L) and Bracket Assembly Door. (1) When reassembling, confirm that the Gear(A) of the Arm F/L and the Gear(B) of the Gear Rack F/L are assembled as below. 3. Holder Assembly CST (Fig.A-2-2) 7. Lever Assembly S/W (Fig. A-2-7) 1) Push the Lever Stopper(L),(R) in the direction of the arrows (A), (B), and move the Holder Assembly CST. Gear (A) Plate Assembly Top Bracket Side (L) Gear (B) Bracket Assembly Door 1) Hook the Spring Lever S/W on (H5). 2) Lift up the left side of the Lever S/W from the Groove(A) of the Chassis. 2) Push the Bracket Assembly Door to the right and lift up the Holder Assembly CST along the Guide Groove of the Bracket Assembly Door. Lever Stopper (R) Lever Stopper (L) Holder Assembly CST Spring Lever S/W (B) (A) (H5) (H5) 4. Guide CST (Fig.A-2-3) 1) Push two Hooks(H3),(H4) in the direction of the arrow and separate the left side. 2) Unhook (H5),(H6) as above No.1) and disassemble the Guide CST in the direction of the arrow. NOTE (1) Place the Spring Lever S/W of the above (No.1) as original position. (H4) Spring Lever S/W (H3) Bracket Side (L) Bracket Assembly Door (H5) 5. Bracket Side(L) (Fig. A-2-4)/ Bracket Assembly Door (Fig.A-2-5) (H5) 1) Remove the Screw (S1) and disassemble the Bracket Side(L) in the front. 57 DECK MECHANISM DISASSEMBLY Arm Assembly Cleaner (A) (Fig. A-3-1) (S1) Base Assembly A/C Head (H1) (Fig. A-3-3) (Fig. A-3-2) Head F/E Fig. A-3 8. Arm Assembly Cleaner(Fig. A-3-1) 9. Head F/E (Fig. A-3-2) 1) Break away the (A) part shown above Fig. A-3-1 from the Embossing of the Chassis in the clockwise direction and lift up the Arm Assembly Cleaner. 1) Unhook the two Hooks (H1) on the back side of the Chassis and lift up the Head F/E. 10. Base Assembly A/C Head (Fig. A-3-3) 1) Remove the Screw (S1) and lift up the Base Assembly A/C Head. 58 DECK MECHANISM DISASSEMBLY Spring S Brake Brake Assembly S (A) (Fig. A-4-1) Arm Assembly Tension Spring Tension Reel T (C) (Fig. A-4-5) Band Assembly Tension Reel S (Fig. A-4-3) Spring T Brake B Brake Assembly T (Fig. A-4-2) (Fig. A-4-4) Fig. A-4 11. Brake Assembly S (Fig. A-4-1) 13. Arm Assembly Tension (Fig. A-4-3) 1) Remove the Spring S Brake. 2) Hold the (A) part shown above Fig. A-4-1 and turn to the clockwise direction, and then lift up the Brake Assembly S. 1) Remove the Spring Tension. 2) Hold the (C) part shown above Fig. A-4-3 and turn to the clockwise direction, and then lift up the Arm Assembly Tension. NOTE NOTE (1) When reassembling, be careful not to change the Spring with above No.11,12.(Refer to Fig. B-2). (1) When reassembling, be careful not to change the Spring with below No.12.(Refer to Fig. B-2). 14. Reel S (Fig. A-4-4) & Reel T (Fig. A-4-5) 12. Brake Assembly T (Fig. A-4-2) 1) Lift up the Reel S and Reel T. 1) Remove the Spring T Brake. 2) Hold the (B) part shown above Fig. A-4-2 and turn to the counterclockwise direction, and then lift up the Brake Assembly T. NOTE (1) When reassembling, be careful not to change the Reel S and Reel T each other. NOTE Three Holes (1) When reassembling, be careful not to change the Spring with above No.11.(Refer to Fig. B-2). (Difference for Springs) Spring T Brake Spring S Brake Spring Tension (Fig. B-2) Color (Black) Reel S Reel T (2) Confirm two Slide Washers under the Reel S and Reel T. 59 DECK MECHANISM DISASSEMBLY (D) Opener Lid (Fig. A-5-3) (C) Spring Arm T/Up Arm Assembly T/up (Fig. A-5-4) Arm Assembly Pinch Base Assembly P4 (Fig. A-5-5) Support CST (B) (Fig. A-5-1) (A) (Fig. A-5-2) Fig. A-5 2) Lift up the Arm Assembly T/up. 15. Support CST (Fig. A-5-1) 1) Break away the (A) part shown above Fig. A-5-1 from the Embossing of the Chassis in the clockwise direction, and lift up the Support CST. NOTE (1) When reassembling, unhook the Spring Arm T/up Shown above (No.17.1) to the original position. 16. Base Assembly P4 (Fig. A-5-2) 1) Break away the (B) part shown above Fig. A-5-2 from the Embossing of the Chassis in the counterclockwise direction and lift up the Base Assembly P4. Opener Lid 17. Opener Lid (Fig. A-5-3) 1) Hook the Spring Arm T/up on the Split digged under the Arm Assembly T/up.(Refer to Fig.A-5-4(D)). 2) Break away the (C) Part of the Opener Lid from the Embossing of the Chassis in the Clockwise direction and lift up the Opener Lid. Spring Arm T/up Arm Assembly T/up 18. Arm Assembly T/up (Fig. A-5-4) 19. Arm Assembly Pinch (Fig. A-5-5) 1) Confirm that the Spring Arm T/up is placed as above (No.17.1). 1) Lift up the Arm Assembly Pinch. 60 DECK MECHANISM DISASSEMBLY Belt Capstan (Fig. A-6-1) (B) Motor Capstan (A) Washer(W1) Clutch Assembly D33 (Fig. A-6-3) (Fig. A-6-2) Washer(W2) Optional Parts Gear Assembly H-Up/D or Gear Assembly Up/D Lever F/R (For Hi-Rewind Models) (Fig. A-6-4) Hook(H1) (For Normal Models) Spring Up/D (C) Slide Washer (Fig. A-6-5) (B') (A') (S1) Fig. A-6 20. Belt Capstan (Fig. A-6-1)/ Motor Capstan (Fig. A-6-2) NOTE (1) When reassembling, move the (C) part of the Lever F/R up and down, then confirm if it is returned to original position. 1) Remove the Belt Capstan. 2) Remove three Screws(S1) on the back side of the Chassis and lift up the Motor Capstan. 23. Gear Assembly H-Up/D or Gear Assembly Up/D (Fig. A-6-5) NOTE 1) Remove the Washer(W2) and lift up the Gear Assembly H-up/D. 2) Remove the Spring Up/D. 3) Remove the Slide Washer. (1) When reassembling, Confirm the (A), (B) parts of Motor Capstan is located to the (A'), (B') of the Chassis. 21. Clutch Assembly D33 (Fig. A-6-3) 1) Remove the Washer(W1) and lift up the Clutch Assembly D33. NOTE 22. Lever F/R (Fig. A-6-4) (1) Gear Assembly H-Up/D is for Hi-Rewind Models. (2) Gear Assembly Up/D is for Normal Models except Hi-Rewind Models. 1) Unhook the (H1) shown above Fig. A-6-4 and lift up the Lever F/R. 61 DECK MECHANISM DISASSEMBLY Brake Assembly Capstan Hole (A)+(B) Brake Assembly Capstan (H2) Gear Cam Spring Capstan (Fig. A-7-4) Hole (A) Guide Rack F/L (H1) (S2) (S1) (Fig. A-7-2) Bracket Assembly Jog (Fig. A-7-1) Gear Rack F/L Gear Cam Hole (B) (Fig. A-7-3) Fig. A-7 24. Bracket Assembly Jog (Fig. A-7-1) 1) Remove the Screw(S1) and lift up the Bracket Assembly Jog. Hook(H2) 25. Guide Rack F/L (Fig. A-7-2)/ Gear Rack F/L (Fig. A-7-3) Hook(H2) 1) Remove the Screw(S2) and lift up the Guide Rack F/L. 2) Lift up the Gear Rack F/L. 26. Brake Assembly Capstan (Fig. A-7-4) NOTE 1) Hook the Spring Capstan on the Hook(H1). 2) Unhook the Hook(H2) and lift up the Brake Assembly Capstan.(Refer to Fig. to the right) (1) When reassembling, confirm that the Hole(A) of the Brake Assembly Capstan is aligned to the Hole(B) of the Gear Cam. (Refer to above Fig. A-7-4). 62 DECK MECHANISM DISASSEMBLY Washer (W1) Gear Drive (Fig. A-8-1) Gear Cam Hole(B) (Fig. A-8-2) Gear Connector Hole(A) Hole(A')+(A) (Fig. A-8-3) Gear Connector Hole(B') Hole(A') Chassis H1 Bracket Assembly L/D Motor Hole(B')+(B) H2 (Fig. A-8-4) Gear Cam Fig. A-8 (Fig. B-3) 27. Gear Drive (Fig. A-8-1)/ Gear Cam (Fig. A-8-2)/ Gear Connector (Fig. A-8-3) Gear Cam (C) 1) Remove the Washer(W1) and lift up the Gear Drive. 2) Lift up the Gear Cam. 3) Lift up the Gear Connector. Gear Drive (D) NOTE (1) When reassembling, confirm that the Hole (A) of the Gear Connector is aligned to the Hole (A') of the Chassis (Fig. A-8-3). (2) When reassembling, confirm that the Hole (B) of the Gear Cam is aligned to the Hole (B') of the Chassis (Fig. A-8-2). (3) When reassembling, confirm that the (C) part of the Gear Cam is aligned to the (D) part of the Gear Drive as shown Fig. B-3 28. Bracket Assembly L/D Motor (Fig. A-8-4) 1) Unhook the three Hooks(H1),(H2) and push down the Bracket Assembly L/D Motor. Hook (H1), (H2) Chassis 63 DECK MECHANISM DISASSEMBLY (W1) Washer Gear Sector ( S1) (Fig. A-9-1) Base Tension Plate Slider (Fig. A-9-2) (Fig. A-9-3) Lever Tension (Fig. A-9-4) (A) Fig. A-9 29. Gear Sector (Fig. A-9-1) NOTE 1) Remove the Washer(W1) and lift up the Gear Sector. 30. Base Tension (Fig. A-9-2)/ Plate Slider (Fig. A-9-3)/ Lever Tension (Fig. A-9-4) (1) When reassembling, turn the Lever Tension to the clockwise direction in maximum. 1) Remove the Screw(S1) and lift up the Base Tension. 2) Lift up the Plate Slider. 3) Hold the (A) Part of the Lever Tension and turn to the counterclockwise direction, and then lift up the Lever Tension. 64 DECK MECHANISM DISASSEMBLY (Fig. A-10-1) Gear Assembly P3 H1 Gear Assembly P3 H2 Gear Assembly P2 (Fig. A-10-2) (A) (B) (A) Gear Assembly P2 (B) Chassis Optional Parts Base Assembly P2 Arm Assembly Idler or Arm Assembly Idler Jog (For 2HD Models) (For 4HD Models) (Fig. A-10-4) (Fig. A-10-5) (H3) (Fig. A-10-3) Base Assembly P3 Fig. A-10 31. Gear Assembly P3 (Fig. A-10-1)/ Gear Assembly P2 (Fig. A-10-2) NOTE 1) Arm Assembly Idler Jog is for 4HD Models. 2) Arm Assembly Idler is for 2HD Models. 1) Unhook the two Hooks(H1) and lift up the Gear Assembly P3. 2) Unhook the two Hooks(H2) and lift up the Gear Assembly P2. NOTE 32. Base Assembly P3 (Fig. A-10-3)/ Base Assembly P2 (Fig. A-10-4) 1) When reassembling, confirm that the (A) Part of the Gear Assembly P3 is aligned to the (B) Part of the Gear Assembly P2 as shown below. 1) Move the Base Assembly P3 in the direction of the arrow of the Chassis Hole(A) and push down the Base Assembly P3. 2) Move the Base Assembly P2 in the direction of the arrow of the Chassis Hole(B) and push down the Base Assembly P2. Gear Assembly P3 33. Arm Assembly Idler Jog or Arm Assembly Idler (Fig. A-10-5) (Unloading Condition) (A) (B) 1) Unhook the Hook(H3) and push down the Arm Assembly Idler Jog. Gear Assembly P2 65 DECK MECHANISM ADJUSTMENT • Tools and Fixtures for Service SR K 1. Cassette Torque meter 1. SRK-VHT-303(Not SVC part) -V HT -S 2. Alignment tape (See figure below) 3. Torque gauge 3. 600g.Cm ATG 5. Post height adjusting driver Parts No: SV-TGO -030-000 (SMALL) SV-TGO -020-000 (LARGE) 6. + Type driver (ø 5) 300 250 200 150 SR K 0 50 VID CAS EO S TOR ETTE Q MET UE VHT ER -303 -T K- V HT0 SR 50 100 150 200 300 250 4. Torque gauge adaptor ALIGNMENT TAPES FOR ADJUSTMENT A B PAL PAL Adjustment ltems SP/LP 2/4 Head SP 2 Head FM Envelope TTV-P2L TTV-P2 Derivation No. Mechanism Head Azimuth X-value NTSE SP 2 Head TTV-N2 TTV-P1 TTV-N1 (TTV-N12) (TTV-N1E) (TTV-N12) TTV-P2 TTV-N2 TTV-N2 TTV-P2 TTV-N2 TTV-N2E TTV-N12 TTV-N2 TTV-P1 Height SP/LP/EP 2/4 Head TTV-N1 (TTN-N12) D A commercially available tape Slantness A/C C NTSC (TTV-P1L) TTV-P2 TTV-P2 (TTV-P2L) RG Post lnclination A commercially available tape Tape Back Tension SRK-VHT-303 The numbers in ( ) parenthesis can be used as the substiture. 66 TTV-N1 DECK MECHANISM ADJUSTMENT 1.Mechanism Alignment Position Check Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected. Test Equipment/ Fixture Test Conditions (Mechanism Condition) • Blank tape • Eject Mode (with Cassette ejected) 1) Turn the Power S/W on and eject the Cassette by pressing the Eject Button. 2) Remove the Top Cover and Plate Assembly Top, visually check if the Gear Cam Hole is aligned with the Chassis Hole as below Fig. C-2. 3) IF not, rotate the Shaft of the Loading Motor to either Clockwise or Counterclockwise until the Alignment is as below Fig. C-2. 4) Remove the Screw which fixes the Deck Mechanism and Main Frame and confirm if the Gear Cam is aligned with Check Point • Mechanism and Mode Switch Position the Gear Drive as below Fig. C-1(A). 5) Confirm if the Mode S/W on the Main P.C.Board is aligned as below Fig. C-1(B). 6) Remount the Deck Mechanism on the Main P.C.Board and check each operation. CHECK DIAGRAM Mode S/W Gear Cam (B) (A) Gear Drive Gear Cam (o) and Gear Drive (o) groove alignment BOTTOM VIEW Fig. C-1 L/D Motor Assembly Gear Cam Chassis Hole Gear Cam Hole TOP VIEW Fig. C-2 67 DECK MECHANISM ADJUSTMENT 2. Preparation for Adjustment (To set the Deck Mechanism to the Loading state without inserting a Cassette Tape). 1) 2) 3) 4) Tape. Cover the Holes of the End Sensors at the both sides of the Bracket Side(L) and Bracket Assembly Door to prevent a light leak. Then The Deck Mechanism drives to the Stop Mode. In this case, The Deck Mechanism can accept inputs of each mode, however the Rewind and Review Operation can not be performed for more than a few seconds because the Take-up Reel Table is in the Stop State and can not be detected the Reel Pulses. Unplug the Power Cord from the AC Outlet. Disassemble the Top Cover and Plate Assembly Top. Plug the Power Cord into the AC Outlet. Turn the Power S/W on and push the Lever Stopper (L),(R) of the Holder Assembly CST to the back for Loading the Cassette without 3. Checking Torque Purpose: To insure smooth Transport of the Tape during each Mode of Operation. If the Tape Transport is abnormal, then check the Torque as indicated by the chart below. Test Conditions (Mechanism Condition) Test Equipment/ Fixture • Torque Gauge(600g/cm ATG) • Torque Gauge Adaptor • Cassette Torque Meter SRK-VHT-303 Checking Method • Play (FF) or Review (REW) Mode • Perform each Deck Mechanism Mode without inserting a Cassette Tape(Refer to above No.2 Preparation for Adjustment). • Read the Measurement of the Take-up or Supply Reels on the Cassette Torque Meter(Fig. C-3-2). • Attach the Torque Gauge Adaptor to the Torque Gauge and then read the Value of it(Fig. C-3-1). Mode Item Test Equipment Measurement Reel Measurement Values Fast Forward Torque Fast Forward Cassette Torque Gauge Take-Up Reel More than 400g/cm Rewind Torque Rewind Cassette Torque Gauge Supply Reel More than 400g/cm Play Take-Up Torque Play Cassette Torque Meter Take-Up Reel 75~115g/cm Review Torque Review Cassette Torque Meter Supply Reel 130~200g/m NOTE: NOTE: The Values are measured by using a Torque Gauge and Torque Gauge Adaptor with the Torque Gauge affixed. The Torque reading to measure occurs when the Tape abruptly changes direction from Fast Forward of Rewind Mode, when quick bracking is applied to both Reels. • Torque Gauge (600g.cm ATG) • Cassette Torque Meter (SRK-VHT-303) SR K Torque Gauge -V H S T- 300 250 200 150 0 50 SR K VID CAS EO S TOR ETTE Q MET UE VHT ER -303 Torque Gauge Adaptor -T K- V HT0 SR 50 100 150 200 300 250 Reel Table Fig. C-3-2 Fig. C-3-1 68 DECK MECHANISM ADJUSTMENT 4.Guide Roller Height Adjustment Purpose: To regulate the Height of the Tape so that the Bottom of the Tape runs along the Tape Guide Line on the Lower Drum. 4-1. Preliminary Adjustment Test Equipment/ Fixture • Post Height Adjusting Driver Test Conditions (Mechanism Condition) • Play or Review Mode Adjustment Procedure Adjustment Point • Guide Roller Height Adjustment screws on the Supply and Take-Up Guide Rollers. ADJUSTMENT DIAGRAM 1) Confirm if the Tape runs along the Tape Guide Line of the Lower Drum. 2) If the Tape runs the Bottom of the Guide Line, turn the Guide Roller Height Adjustment Screw to Clockwise direction. 3) If it runs the Top, turn to Counterclockwise direction. 4) Adjust the Height of the Guide Roller to be guided to the Guide Line of the Lower Drum from the Starting and Ending Point of the Drum. Guide Roller Height Adjustment screw Upper Flange Guide Roller Retaining Screw Fig. C-4-1 4-2. Precise Adjustment Test Equipment/Fixture • Oscilloscope • Alignment Tape • Post Height Adjusting Driver • CH-1:PB RF Envelope • CH-2:NTSC: SW 30Hz PAL: SW 25Hz • Head Switching Output Point • RF Envelope Output Point Adjustment Point Test Conditions VCR(VCP) State Test Equipment Connection Points • Guide Roller Height Adjustment Screws • Play an Alignment Tape Waveform Diagrams P2 POST ADJUSTMENT Adjustment Procedure 1) Play an Alignment Tape after connecting the Probe of the Oscilloscope to the RF Envelope Output Test Point and Head Switching Output Test Point. 2) Tracking Control(in PB Mode) : Center Position(When this Adjustment is performed after the Drum Assembly has been replaced, set the Tracking Control so that the RF Output is Maximum). 3) Height Adjustment Screw : Flatten the RF Waveform. (Fig. C-4-2) 4) Turn(Move) the Tracking Control(in PB Mode) Clockwise and Counterclockwise.(Fig. C-4-3) 5) Check that any Drop of RF Output is uniform at the Start and End of the Waveform. Turn the Roller Guide Height Adjustment Screw slightly to flatten the waveform. P3 POST ADJUSTMENT Fig. C-4-2 Tracking control at center Turn(Move) the tracking control to both directions Fig. C-4-3 NOTE Connection Diagram OSCILLOSCOPE If the adjustment is excessive or insufficient the tape will jam or fold. RF ENVELOPE OUTPUT TEST POINT HEAD SWITCHING OUTPUT TEST POINT 69 DECK MECHANISM ADJUSTMENT 5. Audio/Control (A/C) Head Adjustment Purpose: To insure that the Tape passes accurately over the Audio and Control Tracks in exact Alignment in both the Record and Playback Modes. 5-1. Preliminary Adjustment (Height and Tilt Adjustment) Perform the Preliminary Adjustment, when there is no Audio Output Signal with the Alignment Tape. Test Equipment/ Fixture Test Conditions (Mechanism Condition) • Blank Tape • Screw Driver(+) Type 5mm Adjustment Point • Tilt Adjustment Screw(C) • Height Adjustment Screw(B) • Azimuth Adjustment Screw(A) • Play the blank tape Adjustment Procedure/Diagrams 1) Initially adjust the Base Assembly A/C Head as shown Fig. C-5-1 by using the Height Adjustment Screw(B). 2) Play a Blank Tape and observe if the Tape passes accurately over the A/C Head without Tape Curling or Folding. 3) If Folding or Curling is occured then adjust the Tilt Adjustment Screw(C) while the Tape is running to resemble Fig. C-5-3. 4) Reconfirm the Tape Path after Playback about 4~5 seconds. NOTE Ideal A/C head height occurs, when the tape runs between 0.2~0.25mm above the bottom edge of the A/C head core. Tape A/C Head -0.05 P4 10.9 Tape 0.2~0.25mm A/C Head Base Fig. C-5-3 Fig. C-5-1 X-Value Adjustment Hole Fixed Screw Azimuth Adjustment Screw(A) Tilt Adjustment Screw(C) Height Adjustment Screw(B) A/C Head Assembly Fig. C-5-2 70 DECK MECHANISM ADJUSTMENT slowly turn the Tilt Adjustment Screw(C) in the Counterclockwise direction. 5-2. Confirm that the Tape passes smoothly between the Take-up Guide and Pinch Roller(using a Mirror or the naked eye). 1) Afetr completing Step 5-1.(Preliminary Adjustment), check that the Tape passes around the Take-up Guide and Pinch Roller without Folding or Curling at the Top or Bottom. (1) If Folding or Curling is observed at the Bottom of the Take-up Guide then slowly turn the Tilt Adjustment Screw(C) in the Clockwise directioin. (2) If Folding or Curling is observed at the Top of it then NOTE: Check the RF Envelope after adjusting the A/C Head, if the RF Waveform differs from Fig. C-5-4, performs Precise Adjustment to flat the RF Waveform. 5-3. Precise Adjustment (Azimuth adjustment) • Oscilloscope • Alignment Tape(SP) • Screw Driver(+) Type 5mm Test Conditions (Mechanism Condition) Connection Point Test Equipment/ Fixture • Play an Alignment Tape 1KHz, 7KHz Sections • Audio output jack Adjustment Procedure Adjustment Point • Azimuth Adjustment Screw(A) • Height Adjustment Screw(B) 1KHZ 1) Connect the Probe of the Oscilloscope to Audio Output Jack. 2) Alternately adjust the Azimuth Adjustment Screw(A) and the Tilt Adjustment Screw(C) for Maximum Output of the 1Khz and 7Khz segments, while maintaining the flattest Envelope differential between the two Frequencies. 7KHZ A:Maximum B:Maximum Fig. C-5-4 6. X-Value Adjustment Purpose: To obtain compatibility with other VCR(VCP) Models. Test Equipment/ Fixture • Oscilloscope • Alignment tape(SP only) • Screw Driver(+) Type 5mm Test Conditions (Mechanism Condition) Connection Point Adjustment Point • Play an Alignment Tape • CH-1: PB RF Envelope • CH-2: NTSC: SW 30Hz PAL: SW 25Hz • Head Swithching Output Test Point • RF Envelope Output Test Point Left Groove at the Base A/C Right Adjustment Procedure Adjustment Diagram 1) Release the Automatic Tracking to run long enough for Tracking to complete it’s Cycle. Tracking center position. 2) Loosen the Fixed Mounting Screw and move the Base Assembly A/C Head in the direction as shown in the Diagram to find the center of the peak that allows for the maximum Waveform Envelope. This method should allow the 31um Head to be centrally located over the 58um Tape Track. 3) Tighten the Base Assembly A/C Head mounting Screw. X-Value Adjustment Hole Fixed Screw Azimuth Adjustment Screw(A) Tilt Adjustment Screw(C) Height Adjustment Screw(B) OSCILLOSCOPE Connection Diagram RF ENVELOPE OUTPUT TEST POINT CH-1 CH-2 HEAD SWITCHING OUTPUT TEST POINT 71 DECK MECHANISM ADJUSTMENT 7. Adjustment after Replacing Drum Assembly (Video Heads) Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum. Test Equipment/ Fixture • Oscilloscope • Alignment tapes • Blank Tape • Post Height Adjusting Driver • Screw Driver(+) Type 5mm Test Conditions (Mechanism Condition) Connection Point • CH-1: PB RF Envelope • CH-2: NTSC: SW 30Hz PAL: SW 25Hz • Head Swithching Output Test Point • RF Envelope Output Test Point • Guide Roller Precise Adjustment • Switching Point • Tracking Preset • X-Value • Play the blank tape • Play an alignment tape Checking/Adjustment Procedure Adjustment Points Connection Diagram Play a blank tape and check for tape curling or creasing around the roller guide. If there is a problem then follow the procedure 4. "Guide Roller Height" and 5. "Audio Control(A/C) Head Adjustment". OSCILLOSCOPE RF ENVELOPE OUTPUT TEST POINT CH1 CH2 HEAD SWITCHING OUTPUT TEST POINT Waveform V1/V MAX ≤ 0.7 V2/V MAX ≤ 0.8 RF ENVELOPE OUTPUT V1 V V2 Fig. C-7 8. Check the Tape Travel after Reassembling Deck Assembly. 8-1.Check Audio and RF Locking Time during playback and after CUE or REV (FF/REW) Test Equipment Connection Connection Points Points Test Equipment/ Fixture Specification • Oscilloscope • Alignment tapes(with 6H 3kHz Color Bar Signal) • Stop Watch • RF Locking Time: Less than 5 sec. • Audio Locking Time:Less than 10sec • CH-1: PB RF Envelope • CH-2: Audio Output • RF Envelope Output Point • Audio Ouptut Jack Checking Procedure Test Conditions (Mecanism Condition) • Play an alignment tape (with 6H 3kHz Color Bar Signal) NOTES: Play an alignment tape then change the operating mode to CUE or REV and confirm if the unit meets the above listed specifications. 1) CUE is fast forward mode (FF) 2) REV is the rewind mode (REW) 3) Referenced to the Play mode 8-2.Check for tape curling or jamming Test Equipment/ Fixture • T-160 Tape • T-120 Tape Specification Test Conditions VCR(VCP) (Mecanism StateCondition) • Be sure there is no tape jamming or curling at the begining, middle or end of the tape. • Run the CUE, REV play mode at the beginning and the end of the tape. Checking Procedure 1) Confirm that the tape runs smoothly around the roller guides, drum and A/C head assemblies while abruptly changing operating modes from Play to CUE or REV. This is to be checked at the begining, middle and end sections of the cassette. 2) Confirm that the tape passes over the A/C head assembly as indicated by proper audio reproduction and proper tape counter performance. 72 MAINTENANCE/INSPECTION PROCEDURE 1 Check before starting repairs The following faults can be remedied by cleaning and oiling. Check the needed lubrication and the conditions of cleanliness in the unit. Check with the customer to find out how often the unit is used, and then determine that the unit is ready for inspection and maintenance. Check the following parts. Phenomenon Color beats Replacement Inspection Dirt on full-erase head o Poor S/N, no color Dirt on video head o Vertical or Horizontal jitter Dirt on video head Dirt on tape transport system o Low volume, Sound distorted Dirt on Audio/control head o Tape does not run. Tape is slack In Review and Unloading (off mode), the Tape is rolled up loosely. F/E Head Video Head Fig. C-9-1 Top VIEW A/C Head Pinch Roller Dirt on pinch roller Clutch Ass’y S27 Torque reduced Cleaning Drum and transport system o Belt Capston o Clutch Assembly D33 Fig. C-9-3 NOTE If locations marked with o do not operate normally after cleaning, check for wear and replace. See the EXPLODED VIEWS at the end of this manual as well as the above illustrations See the Greasing (Page 4-22) for the sections to be lubricated and greased. Fig. C-9-2 BOTTOM VIEW * No. (1)~(13) Indicates the Tape Path to be traveled from Supply Reel to Take-up Reel. (7) Base Assembly P3 (4) F/E Head (8) A/C Head (3) P1 Post (9) P4 Post (6) Drum Assembly (Video Head) (5) Base Assembly P2 (11) Pinch Roller (12) Take-up Guide Post (2) Tension Post (10) Capstan Shaft (13) Take-up Reel (1) Supply Reel Fig. C-9-3 Tape Transport System 73 MAINTENANCE/INSPECTION PROCEDURE 4. Supplies Required for Inspection and Maintence 2. Required Maintenance The recording density of a VCR(VCP) is much higher than that of an audio tape recorder. VCR(VCP) components must be very precise, at tolerances of 1/1000mm, to ensure compatiblity with other VCRs. If any of these components are worn or dirty, the symptoms will be the same as if the part is defective. To ensure a good picture, periodic inspection and maintenance, including replacement of worn out parts and lubrication, is necessary. (1) Grease : Kanto G-311G (Blue) or equivalent (2) Isopropyl Alcohol or equivalent (3) Cleaning Patches (4) Grease : Kanto G-381(Yellow) : Used only for Reel S and Reel T 5) Maintenance Procedure 5-1) Cleaning 3. Scheduled Maintenance (1) Cleaning video head First use a cleaning tape. If the dirt on the head is too stubborn to remove by tape, use the cleaning patch. Coat the cleaning patch with Isopropyl Alcohol. Touch the cleaning patch to the head tip and gently turn the head(rotating cylinder) right and left. (Do not move the cleaning patch vertically. Make sure that only the buckskin on the cleaning patch comes into contact with the head. Otherwise, the head may be damaged.) Thoroughly dry the head. Then run the test tape. If lsopropyl Alcohol remains on the video head, the tape may be damaged when it comes into contact with the head surface. (2) Clean the tape transport system and drive system, etc, by wiping with a cleaning patch wetted with Isporopyl Alcohol. Schedules for maintenance and inspection are not fixed because they vary greatly according to the way in which the customer uses the VCR(VCP), and the environment in which the VCR(VCP) is used. But, in general home use, a good picture will be maintained if inspection and maintenance is made every 1,000 hours. The table below shows the relation between time used and inspection period. Table 1 When inspection is necessary About 1 year About 18 months About 3 years Average hours used per day NOTES: One hour 1 Two hours 2 Three hours It is the tape transport system which comes into contact with the running tape. The drive system consists of those parts which moves the tape. Make sure that during cleaning you do not touch the tape transport system with the tip of a screw driver and no that force is that would cause deforming or damage applied to the system. Drum (Rotating Cylinder) Cleaning Patch Head Tip Coat With Isopropyl Alcohol Touch this section of cleaning patch to the head tip and gently turn the Drum (Rotating Cylinder) Fig. C-9-4 74 MAINTENANCE/INSPECTION PROCEDURE (2) Periodic greasing Grease specified locations every 5,000 hours. 5-2) Greasing (1) Greasing guidelines Apply grease, with a cleaning patch. Do not use excess grease. It may come into contact with the tape transport or drive system. Wipe any excess and clean with clean ing patch wetted in Isopropyl Alcohol. 1) Loading Path Inside & Top side 2) Shaft 3) Gear Rack F/L Moving Section 4) Shaft 5) Lever Tension Groove 6) Clutch Assembly D33 Shaft 7) Brake "S" Rubbing Section NOTE:Greasing Points 1) Loading Path Inside & Top side 2) Base Tension Boss inside Hole 3) Arm Assembly F/L "U" Groove 4) Arm Take-up Rubbing Section 5) L/D Motor Worm Wheel Part 1 6) Shaft 7) Arm Assembly F/L of Buming Inside Hole 8) Reel S, T Shaft (G381:Yellow) 9) Brake T Groove 1 4 2 4 3 5 5 6 2 6 9 3 7 Chassis (Bottom) 7 8 Chassis (Top) Side Gear Part Bottom inside Cam Part Gear Sector Cam & Gear Part Bottom Gear Cam Cam Part Guide Rack F/L Gear Rack F/L Press Cam Part Gear Assembly Up/D Gear Drive Stopper Part Plate Slider (Top) Gear Part Cam Part Guide Rail Bracket Side (L) Plate Slider (Bottom) Bracket Assembly Door 75 MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism A. Auto REW doesn't work. YES Is the output of END sensor of supply side "H"? “H”: more than 3.5V “L”: less than 0.7V~1V YES NO Is the Vcc. voltage of End sensor 5V? NO Check the syscon power. YES Replace End sensor. Is the voltage across IR LED between 0.8~1.5V? NO Replace LED. NO Check syscon circuit. B. No F/R modes. YES Is the present mode, F/R Mode? NO Is the mode SW assembled correctly (refer to Pages 4-14.) YES NO Does the Capstan Motor rotate? YES Do the T/Up, Supply Reel rotate? YES Check syscon circuit. Is the normal voltage supplied to the Capstan Motor Vcc1, Vcc2.? YES Does terminal voltage(Vctl) of Capstan Motor supply side more than 4V? YES Replace the Capstan Motor. 76 NO Check Servo, Power Circuits. MECHANISM TROUBLESHOOTING GUIDE C. AUTO STOP. (PLAY/CUE/REV) Check aligment positions (page 414) Check spring Pinch. In Play/Cue/Rev is the pinch roller in contact with the capstan shaft. NO Is the output of DFG, DPG OK? YES Are there T/up and supply reel pulses. Replace Drum Motor. NO YES NO Check Servo, Syscon. YES Check the Syscon, µ-COM. Replace Reel Sensor. D. No cassette loading. Insert the cassette. YES Does the lever S/W work normally. NO Check Cassette Carry Assembly. YES Is there variation for F/L S/W Output? (In Tape with REC Tab “L”→“H”→“L”) (In Tape without REC Tab “L”→“H”→“L”→“H”) NO NO Does the F/L S/W work normally? YES YES NO Check Syscon Circuit. Check Syscon Circuit. 77 Replace F/L S/W. MECHANISM TROUBLESHOOTING GUIDE E. In PB mode Tape Presence not sensed. Is the Pinch Roller attached to the Capstan Motor Shaft? NO Check Alignment positions (page 4-14) YES Does the T/Up Reel turn? NO NO Is the Belt ok? YES Replace the Belt. YES Check the clutch and the Idler Assembly. Does the Capstan Motor turn? YES Does the Drum Motor turn? NO YES Is the Voltage supplied to the Capstan Motor Vcc1,Vcc2 each? YES Are there DPG, DFG Pulses? Is the terminal voltage of Capstan Motor supplied more than 4V? YES NO Check Servo, Power. YES Are the T/Up Supply Reel Sensors ok? Replace the Capstan Motor. YES NO Check Servo, Syscon. Is the Vcc voltage of the Drum Motor normal? NO Check Syscon, Circuit. YES Is the terminal voltage of the Drum Motor more than 2.3V? YES Replace the Drum Motor. 78 NO Check Syscon, Circuit. MECHANISM TROUBLESHOOTING GUIDE 2. Front Loading Mechanism A. Cassette cannot be inserted. Does the Lever Switch work? NO Is the Lever Switch Spring damaged or omitted? NO Replace or add the Lever Switch Spring. YES YES Does the F/L switch work normally? NO Replace F/L Switch. YES Is the Vcc of Main P.C.Board 5V? Check syscon circuit. YES NO Is the voltage between cassette switch and GND on Main P.C.Board 5V?? YES Check power circuit. NO Check Mode switch location and syscon circuit. Is there a short circuit between cassette switch and GND on main P.C.Board? NO YES Remove the short circuit part or Replace the main P.C.Board. Replace F/L Switch. B. Cassette will not eject. Does the L/D motor rotate in reverse? NO Check L/D Motor or Drive IC. YES NO Does the Lever Switch work? Replace lever Switch. YES NO Does the Arm Assembly F/L work normally? Replace Arm Assembly F/L. YES NO Replace the Opener Door. Does the Opener Door work? 79 MECHANISM TROUBLESHOOTING GUIDE C. Cassette will not load. Does the CST insert? YES Does the opener Lid work? YES NO Replace the Opener Lid. Does the Gear Rack F/L work? YES NO Replace the Rear Rack F/L. Does the Opener Door work? YES NO Does the Arm Assembly F/L work? YES Is the opener Door assembled correctly? NO Does the L/D Motor work? YES Replace the Arm Assembly F/L. NO Does the Holder Assembly Cassette move the Arm Assembly F/L? YES Check the power of L/D Motor. NO Replace the Front Loading Mechanism Assembly. Is the Holder Assembly Cassette assembled correctly? 80 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 920074 Printed in Singapore