Download Aiwa Z-R325 Service manual

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
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920074
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