Download Aiwa D33 Service Service manual

HV-FX970
HV-GX910
LE
LE
SERVICE MANUAL
VIDEO CASSETTE RECORDER
BASIC TAPE MECHANISM : D-33
S/M Code No. 09-996-332-6R1
DA
TA
RE
VI
SIO
N
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-996-332-6T1).
TABLE OF CONTENTS
SPECIFICATIONS ............................................................ 3
17. Opener Lid ................................................................ 56
ACCESSORIES LIST ....................................................... 3
18. Arm Assembly T/up ................................................... 56
DISASSEMBLY INSTRUCTIONS ..................................... 4
19. Arm Assembly Pinch ................................................. 56
SERVICE POSITION ........................................................ 5
20. Belt Capstan/Motor Capstan ..................................... 57
VCR TEST TAPE INTERCHANGEABILITY TABLE ........ 6
21.Clutch Assembly D33 ................................................. 57
ELECTRICAL MAIN PARTS LIST .............................. 7 ~ 8
22. Lever F/R .................................................................. 57
WIRE HARNESS DIAGRAM ............................................ 9
23. Gear Assembly H-UP/D or Gear Assembly UP/D ..... 57
BLOCK DIAGRAM ................................................. 10 ~ 18
24. Bracket Assembly Jog ............................................... 58
SCHEMATIC DIAGRAM
25. Guide Rack F/L, Gear Rack F/L ................................ 58
1. POWER SECTION .............................................. 19 ~ 20
26. Brake Assembly Capstan .......................................... 58
2. AUDIO/VIDEO SECTION .................................... 21 ~ 22
27. Gear Drive/Gear Cam/Gear Connector .................... 59
3. SYSTEM CONTROL/SERVO/OSD SECTION) .. 25 ~ 26
28. Bracket Assembly L/D motor ..................................... 59
4. SCART SECTION ............................................... 27 ~ 28
29. Gear Sector ............................................................... 60
5. TUNER/IF SECTION ................................................... 29
30. Base Tension/Plate Slider/Lever Tension .................. 60
6. FRONT 1 C.B .............................................................. 30
31. Gear Assembly P3/Gear Assembly P2 ..................... 61
WAVEFORM
32. Base Assembly P3/Base Assembly P2 ..................... 61
1. VIDEO SECTION ........................................................ 23
33. Arm Assembly Idler Jog or Arm Assembly Idler ........ 61
2. SERVO/OSD SECTION .............................................. 24
DECK MECHANISM ADJUSTMENT
3. TUNER/IF SECTION ................................................... 30
Tools and Fixtures for service ......................................... 62
TRANSISTOR ILLUSTRATION ...................................... 24
1. Mechanism Alignment Position Check ........................ 63
WIRING
2. Preparation for Adjustment .......................................... 64
1. MAIN C.B SECTION ............................................ 31~ 32
3. Checking Torque ......................................................... 64
2. FRONT 1 C.B SECTION ............................................. 33
4. Guide Roller Height Adjustment .................................. 65
3. FRONT 2 C.B SECTION ............................................. 33
4-1. Preliminary Adjustment .......................................... 65
IC DESCRIPTION ................................................... 34 ~ 39
4-2. Precise Adjustment ................................................ 65
ADJUSTMENT ........................................................ 40 ~ 41
5. Audio/Control (A/C) Head Adjustment ......................... 66
MECHANICAL EXPLODED VIEW 1/1 ........................... 42
5-1. Preliminary Adjustment .......................................... 66
MECHANICAL PARTS LIST 1/1 ................................... 43
5-2. Confirm that the Tape passes smoothly between
MECHANISM EXPLODED VIEW 1/3, 2/3, 3/3 ..... 44,46,48
the Take-up Guide and Pinch Roller ...................... 67
MECHANISM PARTS LIST 1/3, 2/3, 3/3 .............. 45,47,49
5-3. Precise Adjustment (Azimuth Adjustment) ............. 67
DECK MECHANISM PARTS LOCATIONS
6. X-Value Adjustment ..................................................... 67
Top View .......................................................................... 50
7. Adjustment after Replacing Drum Assembly
(Video Heads) ............................................................. 68
Bottom View .................................................................... 50
8. Check the Tape Travel after Reassembling
DECK MECHANISM DISASSEMBLY
Deck Mechanism ......................................................... 68
1. Drum Assembly ......................................................... 51
8-1. Checking Audio and RF Locking Time
2. Plate Assembly Top ................................................... 53
during Playback and after CUE or REV ................ 68
3. Holder Assembly CST ............................................... 53
8-2. Check for Tape Curling or Jamming ....................... 68
4. Guide CST ................................................................ 53
5. Bracket Side (L)/Bracket Assembly Door .................. 53
MAINTENANCE/INSPECTION PROCEDURE
6. Arm Assembly F/L ..................................................... 53
1. Check before starting Repairs .................................... 69
7. Lever Assembly S/W ................................................. 53
2. Required Maintenance ................................................ 70
8. Arm Assembly Cleaner .............................................. 54
3. Scheduled Maintenance ............................................. 70
9. Head F/E ................................................................... 54
4. Supplies Required for Inspection and Maintenance ... 70
10. Base Assembly A/C Head ......................................... 54
5. Maintenance Procedure .............................................. 70
11. Brake Assembly S ..................................................... 55
5-1. Cleaning ................................................................. 70
12. Brake Assembly T ..................................................... 55
5-2. Greasing ................................................................ 71
13. Arm Assembly Tension .............................................. 55
MECHANISM TROUBLESHOOTING GUIDE
14. Reel S & Reel T ........................................................ 55
1. Deck Mechanism ........................................................ 72
15. Support CST ............................................................. 56
2. Front Loading Mechanism .......................................... 75
16. Base Assembly P4 .................................................... 56
2
SPECIFICATIONS
Video recording system
Video head
[HV-FX970LE]
[HV-GX910LE]
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
Double azimuth 2 heads
Frequency synthesized tuner
B/G, L SECAM, B/G PAL
SECAM/MESECAM/PAL color signal,
625 lines, 50 fields
VHS video cassettes
PAL/SECAM/MESECAM
SP: 4 hours 20 minutes max. with
E-260 tape.
LP: 8 hours 40 minutes max. with
E-260 tape [HV-FX970LE]
NTSC (Playback only)
SP: 3 hours max. with T-180 tape
LP: 6 hours max. with T-180 tape
[HV-FX970LE]
EP: 9 hours max. with T-180 tape
[HV-FX970LE]
PAL/SECAM/MESECAM
SP: 23.39 mm/sec.
LP: 11.69 mm/sec. [HV-FX970LE]
NTSC (Playback only)
SP: 33.35 mm/sec.
LP: 16.67 mm/sec. [HV-FX970LE]
EP: 11.12 mm/sec. [HV-FX970LE]
Video input
Video output
Horizontal resolution
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
PART NO.
KANRI
DESCRIPTION
NO.
S8-35R-P00-34B
INSTRUCTION ASSY 3FA1/NFA3<970>
S8-35R-P00-36A
INSTRUCTION ASSY<910>
S7-11R-1P0-16A
REMOTE CONTROLLER ASSY<970>
S7-11R-1P0-16B
REMOTE CONTROLLER ASSY<910>
S8-610-45F-000
CABLE,COAXIAL 1.2M/M
4 S8-615-05B-000
Approx. 3 min. with E-180 tspe
VHF-low: C02 to C04, C13 to C20
(SECAM), S01 to S07
VHF-high: C05 to C12, S08 to S41
UHF: C21 to C71
0.5 - 2.0 Vp-p, 75 ohm, unbalanced
1.0 Vp-p, 75 ohm, unbalanced
240 lines
43 dB (SP)
1 track (Mono)
SCART: -8 dBs, 22 k ohm
SCART: -8 dBs, less than 2.2 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.)
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
!
SI-SK6-153-00A
S6-570-62B-000
SI-KE4-310-00A
SI-TO1-238-00A
SI-SA7-159-10A
IC,STR-G6153T 5P
SENSOR PC123Y
IC,KIA431 3P
IC,TA1238N
IC,LA71591M
SI-GS3-977-57B
SI-HI3-977-17A
SI-SS3-082-00A
SI-AL2-416-00B
SI-KE7-031-00A
IC,GMS3977RAA57F
IC,HD3977RC17F
IC,KA3082
IC,AT24C16-10PC
IC,KIA7031P
SI-KE7-042-00B
87-A20-281-010
SI-RH7-635-00A
IC,KIA7042P
IC,MN12510
IC,BH7635S<970>
TRANSISTOR
PART NO.
KANRI
NO.
DESCRIPTION
C301
C302
C303
C304
C305
87-010-544-010
87-010-544-010
87-015-695-080
87-016-088-040
87-010-544-010
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
0.1-50V<970>
0.1-50V<970>
1.0M-50V
220-6.3V
0.1-50V
C310
C310
C314
C315
C316
87-015-698-080
87-015-681-080
87-010-544-010
87-015-681-080
87-015-681-080
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
4.7-50V<970>
10-16V<910>
0.1-50V
10-16V
10-16V
C318
C319
C320
C322
C323
87-010-402-040
87-010-544-010
SC-N10-50K-948
87-010-078-080
87-010-078-080
CAP,E 2.2-50V
CAP,E 0.1-50V
CAP,1UF-50V
CAP,E 47M-6.3V
CAP,E 47M-6.3V
C324
C325
C326
C327
C331
87-010-544-010
SC-N10-50K-948
87-015-681-080
SC-N10-50K-948
87-016-088-040
CAP,E 0.1-50V
CAP,1UF-50V
CAP,E 10-16V
CAP,1UF-50V
CAP,E 220-6.3V
C334
C335
C337
C339
C346
87-016-088-040
87-010-544-010
87-015-698-080
87-015-698-080
87-016-088-040
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
220-6.3V
0.1-50V
4.7-50V
4.7-50V
220-6.3V
C348
C350
C354
C358
C371
87-015-695-080
87-010-544-010
87-016-088-040
87-015-695-080
87-010-544-010
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
1.0M-50V
0.1-50V
220-6.3V
1.0M-50V
0.1-50V
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
C373
C374
C375
C401
C403
87-010-544-010
87-010-544-010
87-010-544-010
87-010-078-080
87-010-544-010
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
0.1-50V
0.1-50V<910>
0.1-50V
47M-6.3V
0.1-50V
87-020-465-080
87-017-011-080
87-070-173-010
DIODE,1SS133
DIODE,IN4003A
DIODE,S1WBA60
C405
C406
C410
C412
C415
87-015-681-080
87-015-681-080
87-010-544-010
87-010-544-010
87-010-552-040
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
10-16V
10-16V
0.1-50V
0.1-50V
22-16V
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
C420
C423
C424
C466
C4A1
87-010-408-040
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
47UF-50V
4.7-50V
0.1-50V
3.3-50V
22-16V
!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
C501
C502
C503
C504
87-016-040-080
87-010-544-010
87-010-078-080
87-010-544-010
87-016-088-040
CAP,0.047F-5.5V
CAP,E 0.1-50V
CAP,E 47M-6.3V
CAP,E 0.1-50V
CAP,E 220-6.3V
!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
C505
C507
C508
C510
C513
87-010-078-080
87-010-544-010
87-010-544-010
87-015-684-080
87-010-544-010
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
47M-6.3V
0.1-50V
0.1-50V
47-16V<910>
0.1-50V
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
C524
C525
C526
C529
C530
87-010-265-080
87-015-684-080
87-A10-216-080
87-010-544-010
87-015-681-080
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
33-16V
47-16V
47M-25V
0.1-50V
10-16V
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
C534
C535
C541
C545
C546
87-015-698-080
87-015-698-080
87-015-698-080
87-010-544-010
87-015-684-080
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
4.7-50V
4.7-50V
4.7-50V
0.1-50V
47-16V
C156
C157
C159
C218
87-015-681-080
87-015-681-080
87-015-681-080
87-010-544-010
CAP,E
CAP,E
CAP,E
CAP,E
10-16V
10-16V
10-16V
0.1-50V
C561
C588
C5F4
C5F7
C5F8
87-010-078-080
87-015-698-080
87-010-544-010
87-010-078-080
87-010-078-080
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
47M-6.3V
4.7-50V
0.1-50V
47M-6.3V
47M-6.3V
DIODE
MAIN C.B
7
REF. NO
PART NO.
KANRI
NO.
DESCRIPTION
REF. NO
PART NO.
KANRI
NO.
DESCRIPTION
C701
C702
C703
C704
C706
87-015-698-080
87-015-681-080
87-015-681-080
87-010-078-080
87-016-577-080
CAP,E 4.7-50V
CAP,E 10-16V
CAP,E 10-16V
CAP,E 47M-6.3V
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
C7S1
C902
C905
C906
C912
87-010-265-080
87-016-577-080
87-015-681-080
87-015-681-080
87-016-577-080
CAP,E 33-16V
CAP,470UF-16V
CAP,E 10-16V<910>
CAP,E 10-16V<910>
CAP,470UF-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
C941
C943
C944
C945
C946
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
C947
C948
C949
C950
C951
87-015-681-080
87-015-681-080
87-010-544-010
87-015-681-080
87-015-684-080
CAP,E
CAP,E
CAP,E
CAP,E
CAP,E
10-16V<970>
10-16V<970>
0.1-50V<970>
10-16V<970>
47-16V
!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
C952
C953
C955
CS501
DIG5F1
87-010-544-010
87-015-681-080
87-015-681-080
S6-00R-DB0-04C
S3-02R-1N0-03B
CAP,E 0.1-50V
CAP,E 10-16V<970>
CAP,E 10-16V<970>
SW,MPU10252MLB4 MIC
7MT229GK MONO FUTABA UNIVERSA
TL401
TU701
VR501
X201
X201
S6-330-32K-000
S7-00R-J3L-03A
S6-130-32W-000
S2-02R-142-8AC
S2-02R-142-8BE
COIL,OSC BIAS 1CHIP 5V
TUNER TADC-S003D LGC&N BG SECA
VR,RH063MCJ5R(220K)
X’TAL,4.286M 16PF
X’TAL,4.286230MHZ
DIG5F1
ES501
ES502
!F101
!F103
S3-02R-2N0-03B
S9-31R-001-6A0
S9-31R-001-6A0
S5-850-11T-000
87-001-196-010
SVV07MM16 MONO SAMSUNG UNIVER
SENSOR END
SENSOR END
FUSE,1600MA 250V
ICP-N10 T104
X301
X501
X502
X503
X5F1
S2-02R-144-3AE
S2-02R-310-01E
S5-290-01K-000
S2-02R-317-71E
S6-180-10B-000
X’TAL,4.433709MHZ 15PPM
X’TAL,10.0000
X’TAL,32.768KHZ
X’TAL,17.7344
X’TAL,4MHZ
!FH01
!FH02
!FR02
JK901
!L102
S5-860-08B-000
S5-860-08B-000
SR-F04-71Q-619
S6-20R-M00-02A
S6-161-45H-000
FUSE CLUMP
FUSE CLUMP
4.7 OHM 1/4 W (3.4) 5% TR R
JACK 42P
FILTER SHT LFS2020V4-04350
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
L103
L104
L105
L201
L301
S6-330-88G-000
S6-330-88G-000
87-005-696-080
87-005-693-080
87-005-196-080
COIL,CHOCK TP 5MM 27MH
COIL,CHOCK TP 5MM 27MH
COIL,100M
COIL,56M 2.3-3.4-5
COIL,10UH
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
L302
L303
L304
L306
L307
87-005-693-080
87-005-438-080
87-005-696-080
87-005-696-080
87-005-696-080
COIL,56M 2.3-3.4-5
COIL,33M 2.3-3.4-5
COIL,100UH
COIL,100UH
COIL,100UH
L308
L309
L401
L402
L405
S2-165-120-000
87-005-696-080
87-005-683-080
SL-R68-01J-045
87-005-196-080
COIL,12M 2.3-3.4-5
COIL,100UH
COIL,8.2M
COIL,6800U J 6-7-5
COIL,10UH
L502
L505
L506
L507
L5S1
87-005-696-080
87-005-696-080
87-005-686-080
87-005-696-080
87-005-438-080
COIL,100UH
COIL,100UH
COIL,15UH
COIL,100M
COIL,33M 2.3-3.4-5
L701
L702
L703
L704
L901
87-005-696-080
87-005-196-080
87-005-196-080
87-005-683-080
87-005-696-080
COIL,100UH
COIL,10UH
COIL,10UH
COIL,8.2M
COIL,100M
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
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>
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
L
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
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 FX970LE]
MUTE
To
SCART SECTION
5
SERIAL
DECODER
LP/EP
SP 'B' PB
88
SP 'A' PB
91
: PB AUDIO SIGNAL
23
DATA
CLK
C. COMB
72
71
LPF
46
Y
DELAY
45
41
NL
DE EMP
11
18
LPF
SUB
LPF
DOUBLE
LIMIT
PB EQ
10
Y/C
MIX
FM
DEM
ENV.
DET
93
TO
SYSCON/SERVO
SECTION
FROM
SYSCON/SERVO
SECTION
61
YNR
PB FM
AGC
V. ENV
51
IC301
LA71591M
99
24
52
43
NORMAL, AUDIO OUT
96
54
C LPF
85
LP 'B' PB
LINE
AMP
6
Q401
Q402
Q403
57
MAIN
CONV
ACC
82
LP 'A' PB
4
HA
59
CLAMP
17
21
60dB AMP
20
23
24
28
29
Q305
PB
PEAKING
COLOR V.H S/W
ROTARY
MAIN
DE-EMPH
Q301
CLOCK DATA C SYNC
Q302
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
IC301
LA71591M
LINE 1 IN
TUNER
AUDIO IN
TL401, Q405
78
76
ALC
LINE
AMP
AUTO
BIAS
REC
AMP
MUTE
99
CONTROL
Q401
BIAS
OSC
72
61
BPF
COMB
AMP
IC301
LA71591M
[FOR FX970LE]
(TO DRUM)
51
52
54
57
59
C. COMB
BPF1
LP REC
84
CCD
LPF
46
Y
DELAY
45
43
YNR
41
FROM
SCART
SECTION
80
(TO DRUM)
96
98
7
SP REC
90
+
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
11
C. SYNC
DATA
REC 'H'
Y/C VIDEO
FROM/TO
SYSCON/SERVO
SECTION
12
30
Q305
CLOCK
FROM
SYSCON/SERVO
SECTION
31
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
FROM
SYSCON/SERVO
SECTION
2B
1H
2H
3H
FROM
POWER SECTION
VIDEO
BUFFER
3B
Q701
4H
FROM
POWER SECTION
FROM
SYSCON/SERVO
SECTION
4B
5H
6H
Q7S1
SECAM AGC
CONTROL
5B
1E
TO
SCART SECTION
5E
:PB VIDEO SIGNAL
:REC VIDEO SIGNAL
13
: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
SCART H
GND
8
9
10
11
12
13
14
GND
GND
15
16
17
18
19
20
21
GND
GND
VIDEO OUT
VIDEO IN
GNG
JK901
SCART1
21
20
19
To
POWER
SECTION
16
15
14
13
12
11
10
9
8
7
6
5
AVT ENTREE/SORTIE(TV)
18
17
4
3
2
1
D902
D901
TU AUDIO(L)
1E
MOD.AUDIO
VIDEO
TU VIDEO
3E
4E
5E
JK901
SCART2
42
41
40
38
37
36
35
34
AUDIO 2
AUDIO 1
MONO AUDIO
VIDEO 2
2G
3G
4G
5G
33
32
31
30
29
28
27
26
VIDEO 1
6G
AV2 ENTREE(DECOIDEUR)
39
To
TUNER/IF
SECTION
25
24
To
AUDIO/
VIDEO
SECTION
23
22
IIC CLOCK
1J
IIC DATA
2J
A.MUTE "H"
3J
13
AUDIO MUTING
CIRCUIT
(Q906,D903,C956,R943)
14
15
16
17
18
19
20
21
22
23
VCC
24
6J
C+ DET "H"
CLAMP
JK901 [SCART2]
To
SYSCON/
SERVO
SECTION
IC901
BH7635S
IC-BUS
CONT.
CLAMP
5V
REG
12
15
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
1
16
C+
GND
GND
GND
36
37
38
39
40
41
42
7J
GND
GND
VIDEO OUT
VIDEO IN
GNG
8J
"H"
To
SYSCON/
SERVO
BLOCK DIAGRAM-6 (SYSTEM CONTROL 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 Y/C,PRE-AMP
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
IC503
AT24C16
EEPROM
3
2
1
22
21
20
19
18
17
16
15
14
13
12
IC5F1
MN12510F
1 2 3 4 5 6 7 8 9 10 11
5 6 7 8
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
1 2 3 4
34
35
36
37
38
39
40
41
42
43
44
VCC
OSC
FROM/TO TU/IF
GND
X502
32.768KHZ
33 32 31 30 29 28 27 26 25 24 23
OUT
RESET
72 OSC1
73 OSC2
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
VCC
OSC
TO POWER
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
MODE SW1
MODE SW2
MODE SW3
MODE SW4
IIC DATA 91
V.ENV 12
V. H/SW 24
C500
77
76
75
74
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
FROM/TO AUDIO(HIFI)
18
FROM
POWER
SECTION
SCHEMATIC DIAGRAM-1(POWER SECTION)
A MAIN(POWER SECTION)C.B
D152
1N4003A
Q153
KTC2804-Y
D154
1N4003A
D155
1N4003A
1B
C159
10/16
Q151
KTC3203-Y
ZD151
MTZ13A
BD101
S1WBA60
T101
SHT-023H
6
9
R101
2.7 2W
R104
56K
2W
C103
68/400
BC101
BEAD CORE
C102
R102
0.1/275
100K 2W
D109
RU4YXLF
C120
470/25
4
C122
0.022
D108
EU01W
11
BC102
BEAD
CORE
OVP
L102
33m
Latch
R103
8.2
DROIN
D104
EU01W
1
D107
F103
ICP-N10 ERA18
Reg3(7.2V)
C101
0.1/275
OSC
R Q
FB
1
IC102
PC123Y
FB
4
R117
2.2K
1
3
C111
0.022
IC101
STR-G6153T
12VA
Q155
KRA103M
1C 12.3V(CAP)
ZD104
MTZ5.6B
R
C155
0.1
Q156
KTC3203-Y
C117
470/16
R166
2.2K
GND
To
SCART
SECTION
1A
3A
2C 12V(DRUM)
3C
-27VG
4C
-21VG(F-)
5C
-15VG(F+)
Q157
KRA103M
R167
2.2K
R
6C STAND-BY "H"
R118
1K
C114
0.047
R170
1K
R169
1K
Q158
KTA1268-BL
R119
3.3K
1%
7C
5VG
8C
TIMER "H"
9C
5VT
10C
5V
Q164
KSA1273
R154
1K
R155
27K
R161
270
R162
330
R156
10K
R157
1K
2
R120
2.7K
1%
1
IC103
KA431AZ
C112
3300P/400
R165
12K
C115
47/50
2
R109
GND 0.35 2W
4
PW101
R114
100K
3
Counter
FH01
C118
220/10
R116
330
OCP
Mirror
FB Curent
Detector
F101
T1.6A/250V
15
OCP
Buffer
Amp.
FH02
D105
EU01W
S
TSD
GND
To
TUNER/IF
SECTION
1B
6B
L105
100U
L103
22U
C109
33/25
Drive
Q154
KTC3198
C119
47/50
C116
1000/16
D106
ERC81-004L
2
Reg1(9.4V)
Reg2(7.2V)
6B
3A
R164
12K
13
33VT
Q165
KRC101M
ZD152
MTZ10C
C121
470/25
FR02
4.7 1/4W
5
VCC
C151
4.7/50
4B
5B
R
R171
3.9K
5VT
2A
8
7
12
Slort
ZD153
MTZ13A
9V
3B
L104
22U
10
C106
100P/1K
C153
4.7/50
2B
1A
C105
0.01/630
D102
ERA22-10
C156
10/16
C152
4.7/50
C157
10/16
R151
1.2K
Q152
KTC3203-Y
R152
1.2K
5.3VA
3
2
R
D151
1SS133
R121
180
Q160
KRC101M
Q162
KTA1273
Q159
KTA1273
C113
220P/400
C123
47/6.3
R172
12K
POWER CORD
R158
270
R159
330
Q161
KTC3199-BL
11C PWR CTL "H"
C124
22/16
12C
13C
5.3VA
GND
To
SYSCON/
SERVO
SECTION
1C
13C
1D
2D
3D
19
20
5VT
5V
GND
To
AUDIO/
VIDEO
SECTION
1D
3D
SCHEMATIC DIAGRAM-2 (AUDIO/VIDEO SECTION)
A MAIN(AUDIO/VIDEO SECTION)C.B
1G
2G
3G
1D
2D
3D
5VT
5V
R425
47K
R430
3.9K
REC "H" 79
L401
8.2u
R222
1K
79
29
30
80
R323
5.6K
5.0
75
74
3.4
73
3.2
72
2.5
71
70
R
85
NAP
H.A
GND
87 H.A
1.9(4.8)
KIL
2
R420
1K
Q405
KTC3203-Y
R421
2.2
3
C419
0.01
C418
0.015
C337
4.7/50
R326
2.7K
C341
0.022
C3B1
0.033
*
C417
1200P
R422
560
R491
12K
* C301
0.047:GX910LE
R490
47K
*
0.1:FX970LE
C310
10/16:GX910LE
4.7/50:FX970LE
R305
1.5K:GX910LE
1.2K:FX970LE
C376
0.022
4
18
19
20
3.0 1.9 1.1
3.0
(0.2) (2.5)
R308 1
2.7K
R306
330
4.3(3.8)
R341 1.2
3.3K (1.7)
21
22
23
27
28
PB
CTL
0.3
0.3
3
6
29
EQ
TC1
C317
0.01
R311
4.7K
REC
LIMITER
L304
100U
LP
2
AFC
TRICK
ID-DET
PHASE
ADJ
MAIN
ID-DET
1
2
C217
0.1
R318
4.7K
SECAM
1/4
PB
1.1/4.3
Anti Ball
PB
ATT
ACC2
EP
REC
SW5
V C/D
V C/D
V SEP
VCO
SLICER
AFC
DAC
SYSTEM
SW
IDENT
1/4
C/D
IIC BUS
XVCO
4
C215
0.1
2
1.1
(4.4)
5
6
C314
0.1
8
9
10
SW8
12
X201
4.286MHz
R209
100
R206
100
R210
1K
90 IIC CLOCK
54 C.SYNC
R205
1K
C212
0.033
Q201
KTA1267
C213
2.2/50
27 DV.SYNC
R317
*
D301
1SS131
R325
1K
C323
47/6.3
6G
VIDEO 1
2.4
5G
VIDEO 2
Q305
KTA1267-GR
0
4G MONO AUDIO
:PB Y SIGNAL
:PB CHROMA SIGNAL
* R317
82K:GX910LE
100K:FX970LE
:PB VIDEO SIGNAL
:REC Y SIGNAL
:REC CHROMA SIGNAL
:REC VIDEO SIGNAL
:PB AUDIO SIGNAL
:REC AUDIO SIGNAL
L303
33u
*
* R313
330:GX910LE
11
R204
1K
5V
R313
REC
TRICK
7
91 IIC DATA
C315
10/16
13
SYNC
GATE
C214
15P
2
14
SYSTEM
SW
5VT
470:FX970LE
*
ONE VOLTAGE:PB OR REC MODE
TWO VOLTAGES:PB AND (REC) MODE
: WAVEFORMS No.
21
15
SW7
SW6
PB
QUAD DET
3
C216
1
16
PAL/NTSC
SYNC
COMORESS
SW4
ADJ
31
30
1.7
(2)
C370
180P
R312 C311
1.8K 180P
C312
22P
R310
1K
1.8
(3.3)
2.9
L301
10u
1.3
(1.9)
C420
47/50
10
R335
18K
2.2
(2.5)
C318
2.2/50
1.7(0.6)
C363
39P
1.8(2.3)
Q301
KTC3199-BL
5.1
0.1
EE
AGC
C309
330P
Q302
KTC3199-BL
C304
220/6.3
26
0
60dB
AMP
C369
0.022
R307
330
C305
0.1
25
4.9
17
32
Chara
INS
24
4.9
9
1.3
(3.4)
33
SERIAL
DECODER
2.2 0
(2.5)
C324
0.1
R316
150
14
(2.5)
17
5.1
C325
1
1.9(1.3)
79 REC "H"
16
2.3
CLAMP
L/M
18
Anti Bell
ADJ
X2
(2.3) 1.5 C316
10/16
54 C.SYNC
15
1.9
(1.5)
Y-GND
14
15
P
*
13
5.1 1.5
(2.7)
5
R419
47
C424
0.1
C421
0.022
12
1.7
R417
1K
V.H/SW TP
6
11
1.0
R
35
34
CLAMP
P
R319
1K
39
AGC
TC2
B.B
10
0
C368
1000P
TL401
BIAS COIL
1
4
9
NL
EMPHA
H-PLL
SYNC
SEP
R
27 DV.SYNC
C423
4.7/50
0
DOUBLE
LIM
W/D
CLIP
AFC
DET
P
R
90 IIC CLOCK
R409
4.7K
8
2.4
R
4.3/1.1
BELL
19
ACC
DET
REC
PB
4.1
36
R
C310
5
7
2.4
R
R309
680
6
0.1
(2.4)
R415
330K
C414
0.01
SP
SYNC
DET
P
R338
270
5
2.4
EQ
AMP
C415
22/16
C4A1
22/16
4
2.5
Y/C
MIX
1/2
R
P
SW2
2.2 C322
47/6.3
38
1.6
C319
(4.7)
SYNC
0.1
37
DET
1.8
(3.3)
PB-Y
P
PB
2.2M BPF
X2
20
IC201
TA1238N
C211
0.022
C203
0.47/50
1.1M BPF
40
ALWAYS
5V
REG
REC
7
5.1
N.C1
N.C2
PIC-CTL
ANR
R P
*
R413
8.2K
L405
10u
2
1
3
2.4
NL
DEEMP
21
1.1M
PRE-BPF
ACC1
42
41
P
22
BELL
ADJ
SW3
C326
2.8 10/16
3.0
DELAYED
SIGNAL
CLAMP
Y.N.R
DETAIL
ENH
FM
DEM
L302
2
2.4
FM
MOD
FM
PROCESSING
PB EQ
THROUGH
PB/EE
REC:EP/LP
PB:EP
EQ
AMP
1
P
Y.LPF
V/I
CON
L308 12u
PB/EE
R418
27K
P3D03
F/E
GND
R412
1.8K
C413
0.01
To
CTL/AUDIO
HEADS
To
FULL
ERASE
HEAD
C412
0.1
Q403
KTC3199-BL
VCA
DET
Y/C SEP
IN
23
C204
0.047
C205
0.01
C206
0.47/50
ACC
BPF
4.3M
BPF
43
P
C353
22P
6
5
4
3
2
1
P
PB FM
EQ
24
0
C327
1
2.1
FBC
Y-VCC
99
REC
FM EQ
C208
10/16
1.6
1.5 C313
(2.3) 100P
44
R
R
Vref
Vref
2.3V
Q404
KTC3199-BL
R411
22K
79
REC "H"
P
REC FM
AGC1
PB FM
AGC
98
R408
2.2K
R410
10K
AUDIO
SIGNAL
PROCESSING
S-VHS:OPEN
2.6
(2.2)
C207
0.047
0
R
BAL/TCI
ALC
DET
R414
12K
Q402
KTA1267-GR
2F
1F
45
Y DELAY
ACC
ACC DET
97
2.4(3.3)
100
Q401
KTA1267-GR
BPF1
R
FM AGC
DET
4.9
(4.1)
9.5
16
SUB
LPF
Q303
KTA1267-GR
C328
0.047
47
P
AGC
DET
B-UP
AMP
C329
0.01
48
R211
1.5K
R213
100
1.6
PB BGA
AFTER
R
C201
2.2/50
C330
0.01
0.9
(3.1)
REC
S-FM IN
LINE
AMP
C301
96 MUTE
2.4(1.6)
R406 C410
2.7K 0.1
0
50
CCD
LC89981/82
DELAY
PROCESSING
PB-C
R
2.3
6 SECAM DET "H"
49
Cn-CTL
D.E.
COMP
IN
RFSW/
HASW IN
95 A.GND
C466 0
3.3/50
CCD
GND
C COMB
C-LPF
A-MUTE/
C+ROT
R407
22K
CCD
LPF
COMP
OUT
94
R212
100
1.9
51
2.2
R
0
R403
6.8K
R404
270
2.6
52
C-DELAY
R
10K
18K
10K
L402
6800u
0
53
46
BPF2
R302
R303
R304
R431 C431
22K 0.01
0(0.3)
270
2.6
54
CCD
VCC
NTSC:H
C-MAIN
Cn-CTL
R
ENV
DET
93
*
R424
55
PB BGA
BEFORE
P
P
28 C.ROTARY
24 V.H/SW
79
REC "H"
92
4.2(0)
62 A.MUTE
C375
0.1
C408
0.015
56
D.E.
NON CORR
MES
REC REC REC
APC APC AFC
BEFORE
ID DET
MAIN
BALANCE CONV
REC
FM
AGC2
REC
FM AGC2
DET
LP/EP
Q3A2
KTC3199-BL
30
COMP.OUT
3.4
57
SLD
To
SEC
DET
COMB
AMP
REC
BGA
SUB
CONV
VXO
XO
C416
2200P
R3A3
1K
0.2
*
5.0
58
12
R
320/321FH
VCO
91
C348
1/50
R3B1
3.3
59
C-VCC
R
12
12
0.2
(0.5) 5.1
P
89
C350
0.1
R333
560
R3A2
C302
47K
Q3A1
KTC3199-BL
3.4
60
CORRE
D.E.
0
R416
150
[FOR FX970LE]
To
CYL.HEADS
3.4
61
320FH
VXO
P
1.9
C332 0.01
P
1.9(4.8)
12 V.ENV
3.5
62
VXO1
PHASE
ALT
KIL
B.D.
90
R350
470
REC
APC
DET
5.0
63
AFTER
1.9(0)
P3D01
C209
0.022
1.3
88
4.7K:FX970LE
P3D02
AUDIO PB
AUDIO REC
A/E (+)
A/E (-)
CTL (-)
CTL (+)
R322
8.2K
P
BPF
GND
* R3B1
2.7K:GX910LE
1
2
3
4
5
6
64
NTSC-M
84
86
C302
0.022:GX910LE
0.1 :FX970LE
65
VXO2
PILOT
BG
KIL
DET
83
0
5.0
CTL(+)
CTL(-)
To
SYSCON/
SERVO
SECTION
1F , 2F
C342
0.01
C-GND
2.7
66
0.7
[FOR GX910LE]
*
3.8
67
5.0
Q304
KTC3199-BL
C335
0.1
91 IIC DATA
J3A2
* R337
15K:GX910LE
[FOR FX970LE]
0
68
2.1
(1.4) 5.0
SECAM DET
PAL M DET
ALC
0.7
C367
0.022
18K:FX970LE
SP A PB
SP REC
SP B PB
LP A PB
LP REC
LP B PB
69
18K
*
2.4
76
82
0
12
R337
Vref
2.3V
GND
0
J3A1
To
SYSCON/
SERVO
SECTION
3F
16F
0
77
C210
47/16
C336 0.01
13
8
2.0
(2.9) 0.6
A-VCC
81 H.A
[FOR FX970LE]
16F
2.4
78
0
C3A1
0.022
[FOR GX910LE]
V.ENV
2.5
79
1.8
(0)
R340
R3A1
2.2K
2.4
(1.9)
L201
12u
C331
220/6.3
L306
100U
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
R349
5.6K
6
C346
220/6.3
C371
0.1
C374
0.1
Q202
KTC3199
C303
1
R305 C306
0.01
56u
C307
27P
C373
0.1
C343
0.047
L307
100u
C344
0.022
27
C334
220/6.3
10K
90
C218
0.1
C354
220/6.3
R324
11F
12F
13F
14F
15F
C355
0.01
91
C405
10/16
VIDEO(VPS)
VIDEO(Y/C)
SEC DET "H"
C.SYNC
COMP OUT
RF TP
24
R402 2.2M
6F
7F
8F
9F
10F
62
C406
10/16
A.MUTE "H"
V.H/SW
IIC DATA
IIC CLOCK
DV.SYNC
C402
0.022
C401
47/6.3
C403
0.1
28
C220
0.022
29 H.AMP SW
3F
4F
5F
HEAD AMP
RF
PROCESSING
REC "H"
H.AMP SW
C.ROTARY
L309
100u
[FOR GX910LE]
R201
470
R321
1.5K
To
POWER
SECTION
1D
3D
*
5VT
5V
GND
AUDIO 1
22
To
SCART
SECTION
1G
6G
WAVEFORM-1 (VIDEO SECTION)
1
3
2
IC301 Pin 38
Video in
1Vp-p
IC301 Pin 20
PBmode
500mvp-p
5
IC301 Pin 23
PB/REC mode
5Vp-p
13
IC301 Pin 24
PB/REC mode
5Vp-p
14
IC301 Pin 63
PB mode
600mVp-p
IC301 Pin 64
PB mode
600mVp-p
IC301 Pin 41
PB mode
400mVp-p
11
10
IC301 Pin 7
REC mode
1.4Vp-p
8
7
IC301 Pin 29
PB mode
2.1 Vp-p
IC301 Pin 6
REC mode
2.2Vp-p
9
IC301 Pin 28
PB/REC mode
4.2Vp-p
, 32 , 31
6
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)
3
2
1
5
7
6
IC501 Pin 39
1V/10µS
REC/PB modes
(DPG)
IC501 Pin 38
1V/1mS
REC/PB mode
(DFG)
9
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)
4
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)
10
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
0.5
1 2 3 4
19
20
R525
5.6K
R586
2.2K
R545
2.2K
VCC
GND
RESET
1SS133
DJ16
DJ14
1SS133
1SS133
1SS133
DJ11
1SS133
1SS133
DJ09
DJ10
88 87 86 85 84
81
3
2
1
0
0
0
4.8(0)
4.9
0(4.9)
4.9
0
0
4.8
4.8
4.3
0
4.6
0
0
0
0
5.1
1.2
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
R5B3
1K
R
ES502
ST5811-A,B
SUP END
R564
27K
Q514
KRC103M
R5C7
1K
R562
560
4
R558
22K
4
8
9
6
38 39 40
43
45
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
R5B4
1K
R
6
2 1
44 43 42 41 40 39 38 37 36 35 34 33 32 31 15
13
R5F3
15
80
79
78
77
76
75
74
73
72
96 97 95
R5F6
1K
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
43 P13
44 P14
G7 13
G6 12
21
64
58
13
C576
14P
32
31
79
29
28
R5H0
27K
R5G7 27K
X503
17.734MHz
R509
10K
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"
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
6H TU SECVL "H"
7H
IIC CLOCK
8H
AFT
9H
IIC DATA
G5
C552
0.01
44
91
62
VPP 16
42 P12
G4
43
CS501
CST/REC.SW
R5C6
1K
X5F1
4.0MHz
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 SEC DET "H"
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
Q503
KTA1267-GR
5.3
1C
2C
3C
4C
5C
5.4
3.6
R542
2.2K
88
R583
10K
R529
10K
C5S2
0.022
Q501
KTC3199
BL
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"
To
TUNER/IF
SECTION
1H
8H
VDD 18
17
G3
42
G2
41
G1
X502
32.768KHz
VSS 21
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
150P
45
94
33 32 31
P3
2.7
0
3.1
5.0
5.4
0
5.4
2.5
2.5
0
0.8
1.5
0
0
0.1(0.2)
5.1
0
0
0
5.0(0)
4.9(4.5)
0
0
5.1
0
5.1
0(0.4)
2.3
2.4
1.2(0)
GND
KEY RTN 0
To D
KEY 2 C.B
PKM02
12V(DRUM)
C535
4.7/50
5.3
5.1
7
5V
3
C537
0.01
R559
4.7K
R5F2
8
12V(CAP)
5.3VA
0
22K
R5F1
10
C534
4.7/50
45
*
7
5
5.3
5.1
5.3 R556
R555
220
1
IC501
HD3977 RC17F
SYSCON/SERVO
PROCESS
1
C536
0.01
R560
4.7K
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
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
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
R561
560 2.9(2.3)
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
8
NC
1
5.3
R550
220
R553
220
7
NC
2
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
6
P16
3
C508
0.1
12V(CAP)
To
MODE SW
5
P15
C551
0.033
C507
0.1
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
0.1
2.2
2.2
2.2
2.2
4.4
2.5
5.2
0
2.6
1.3
2.6
0
2.0
0
0
1.2
80
R5C9
10K
IC504
KIA7031P
RESET
R546
5.6K
12
0.4
0
0.1(0)
0
0
5.1
4.5
4.5
1.6
R507 1K 3.5
0.2(2.3)
2.3(4.2)
R543 100 5.1
0
5.3
R5B5 100 5.0
0
5.2
0
5.0(0)
0
5.3
2.5
2.5
2.7
2.4
0
2.5
0
0
2.3
C526
47/25
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
1K
C556
0.01
C509
0.022
VCC
R505
VR501
220KB
GND
61
9
0
R579
56K
R528
10K
R523
15K
C525
47/16
To E
CAPSTAN
MOTOR C.B
PCM01
PG ADJ
5.3
C522
0.01
C544
0.047
R5E7 10K
78
C567
3900P
RESET
PMC01
R521
3.3K
1
3
4
5
6
C575
1000P
R563
10K
R5E8 10K
81
38
40
39
C574
1000P
R535
470K
C545
0.1
1
2
3
4
5
6
7
8
1K
1K
1K
C557 0.01
To D
LOWER
DRUM C.B
PDM01
R569
1M
3
R5H2
330
R511
1K
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
D509
1SS133
2
R5F0
10
R5H1 56
2.2K
3.3K
PMD01
C546
47/16
F- NP NP NC 7G 6G 5G 4G 3G 2G 1G 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
R506
R522
R512
F-
13 12 10 9
5.3VA
1
2
3
4
5
6
7
To C
KEY 1 C.B
PKM01
PMK02
R5G5 27K
1
2
To
LOADING
MOTOR
GND
MODE S1
MODE S2
MODE S3
MODE S4
1SS133
97 96 95 94 93 92 91 90
GND
OTPB "H"
5VA
K.RTN 1
GND
R570
4.7K
RC5F1
REMOCON SENSOR
5.3VA
C529
0.1 R526
5.6K
PML01
GND
MOTOR GND
I.LIMIT
CAP.CONTROL
12V
CFG
CAP.REV "L"
5.1V
[FOR GX910LE]
1SS133
5VT
1
2
3
4
5
SP LP EP
R5G4 27K
ZD501
MTZ6.8C
BIL SAP Hi-Fi ST
C520
1000P
C528
0.01
C530
10/16
D.CTL
M.GND
DFG
12V
PG
GND
5.1V
DJ03
1SS133
DJ01
IC503
AT24C16
EEPROM
0
R504
1K
R581
68K
14
REC TIMER VCR M REM
R5G3 27K
9
3
R5G2 27K
8
12.2 12.2 0.9
2
PMK01
DIG5F1
R5G1 27K
7
1.8
1
5.3
R5B1
1K
5.3VA
IC505
KIA7042P
67
63
R5G0 27K
6
1.8
65
GND
5
3
R524
6.8 1W
LD+
LD-
R501
100
4
84
V OUT
0.8
86 85
VCC
3
0.5
94
0
0
0
0
0
8 7 6 5
5.3VA
GND
1
2
MOTOR DET
GND VCC
GND GND
GND CLK
GND DATA
MOTOR DRIVE
5.3
R502
0
4.6(5.2) 100
4.6(5.2)
12V(DRUM)
C516
0.022
100 99 98
DJ06
90 91
DJ02
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
SCHEMATIC DIAGRAM-4 (SCART SECTION)
A MAIN(SCART SECTION)C.B
JK901 [SCART1]
1
2
3
4
5
6
7
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
2A
GND
JK901
SCART1
L905
BEAD
CORE
1A
21
3A
20
19
To
POWER
SECTION
1A
3A
C958
39P
R901
75
R902
75
L903
1u
18
17
16
15
14
*
13
ONE VOLTAGE:PB OR REC MODE
TWO VOLTAGES:PB AND (REC) MODE
12
11
C901
1000P
:PB VIDEO SIGNAL
:REC VIDEO SIGNAL
R903
560
: VIDEO SIGNAL
10
9
8
L901
100u
7
6
:PB AUDIO SIGNAL
:REC AUDIO SIGNAL
R905
560
C903
L904 100u
1000P
5
AV1 ENTREE/SORTIE (TV)
12VA
AUDIO-R OUT
AUDIO-R IN
AUDIO-L OUT
GND
GND
AUDIO-L IN
4
3
2
R904
560
C9A1
1000P
R906
560
L902
100u
1
C908
1000P
D902
1SS133
L906
100u
D901
1SS133
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
AUDIO 2
AUDIO 1
MONO AUDIO
VIDEO 2
34
1G
2G
3G
4G
5G
33
32
31
C911
1000P
30
29
L911
100u
R913
560
28
27
VIDEO 1
To
AUDIO/
VIDEO
SECTION
1G
6G
6G
IIC CLOCK
1J
IIC DATA
2J
25
R950
R949
D903
1SS133
D904
1SS133
3J
C958
39P
100
100
13
14
15
16
17
18
Q906
KTC3199
C902
470/16
C942
1/50
C912
470/16
C955
10/16
C943
10/16
C944
10/16
C945
10/16
24
R943
1.5K
A.MUTE "H"
26
L914
100u
R915
560
AV2 ENTREE (DECODEUR)
TU AUDIO(L)
L907
BEAD CORE
C904
1000P
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
IC901
BH7635S
4J
5J
IC-BUS
CONT.
7J
JK901 [SCART2]
To
SYSCON/
SERVO
SECTION
1J
5J
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
1
C950
10/16
22
23
24
25
26
27
28
AUDIO-R OUT
AUDIO-R IN
AUDIO-L OUT
GND
GND
AUDIO-L IN
C909
43P
27
28
29
30
31
32
33
34
35
C+
GND
GND
GND
36
37
38
39
40
41
42
GND
GND
VIDEO OUT
VIDEO IN
GNG
8J
To
SYSCON/
SERVO
SECTION
6J
8J
WAVEFORM-3
SCHEMATIC DIAGRAM-5 (TUNER/IF SECTION)
SCHEMATIC DIAGRAM-6 (FRONT-1 C.B)
1
B FRONT-1 C.B
PKM02
1
2
3
4
5
6
7
8
9
10
TU701 Pin 18
(IF Signal)
A MAIN(TUNER/IF SECTION)C.B
L702
10U
To
POWER
SECTION
1B
5.3VA
1B
9V
2B
5VT
3B
33VT
4B
6B
C705
0.01
C704
47/6.3
GND
K.RTN 0
2
5B
GND
6B
(
TUN.AUDIO
To
SCART
SECTION
1E
5E
1H
3E
VIDEO
4E
TU VIDEO
5E
IIC CLOCK
2H
IIC DATA
3H
L701
100U
4H
C702
10/16
5H
R704
470
9H
TU SECVL "H" 6H
C703
10/16
7H
AFT
SW5A1
SW5A2
REC/ITR
REW/
SW5A3
PLAY
R5A4
2.7K
R5A5
3.9K
SW5A4
/F FWD
SW5A5
STOP
SW5A6
PAUSE/
STILL
)
TU701 Pin 24
(Video Signal)
TU701
2E
TU SEC "H"
R5A3
2.2K
1E
OSD VIDEO 1H
To
SYSCON/
SERVO
SECTION
To A
MAIN C.B
SYSCON/SERVO
SECTION
PMK02
R5A2
1.5K
R5A1
1.8K
8H
Q701
KTA1267-GR
9H
1
BB
2
AUDIO
3
SDA
4
4MB
5
SCL
6
VIDEO
7
MD TU
8
RF AGC
9
NC
3
TU701 Pin 22
(SIF Signal)
SCHEMATIC DIAGRAM-7 (FRONT-2 C.B)
10 AS
R706
220
11 SCL
12 SDA
L703
10U
R707
220
C706
470/16
4
13 B+
C707
0.01
C710
43P
14 B+
15 NC
C FRONT-2 C.B
16 TU
C701
4.7/50
ZD701
MTZ33B
17 TP
1
18 IF
C7S1
33/16
R7S1
22k
TU701 Pin 21
(Audio Signal)
PMK01
19 SW 1
Q7S1
KTC3198
20 SW 2
4
21 AUDIO
3
22 SIF
23 AFT
2
24 VIDEO
1
2
3
4
5
GND
OTPB "H"
5.3VA
GND
KEY RTN 1
(
To A
MAIN C.B
SYSCON/SERVO
SECTION
PMK01
R5A6
1.8K
R5A9
120
)
LD5A1
SG5311
25 NC
:PB VIDEO SIGNAL
:REC VIDEO SIGNAL
C712
5.6P
:PB AUDIO SIGNAL
:REC AUDIO SIGNAL
L704
8.2U
Q5A1
KRC103M
R
: WAVEFORMS No.
29
30
SW5A7
CH UP
R5A7
1.5K
SW5A8
CH DOWN
R5A8
2.2K
SW5A9
ONE-TOUCH
PLAYBACK
SW5A0
OPTB
WIRING-1 (MAIN C.B SECTION)
1
2
3
4
5
To
CAPSTAN
MOTOR
PCM01
A MAIN C.B
PML01
PMC01
To
CYL.HEADS
13
14
ANTENNE
AV1 ENTREE/SORTIE (TV)
ENTREE
SORTIE
C704
L903
L905
R902
39 41
C944
19 21 23 24
5
3
1
2
R320
R326
C338
P3D03
R950
Q701
C707
C701
Q906
B C E
C5S1
R555
3
1
R591
R5S3
C500
X5F1
C502
R544
CS501
CST/TAP.SW
DIG5F1
R5F0
R5F1
CS501
LD5F1
MS501
31
To
MODE SW
5
3
1
PMK01
GRN
ORG
To C
FRONT 2 C.B
PKM01
C5F8
R5G7
R5H0
R5G5
R5G6
PMK03
L502
C505
B
C
E
IC505
C506
R5C6
5
1
E
C
B
IC504
R548
C552
R570
C520
R504
C507
R545
R586
R5C9
DJ02
VR501
R529
R542
E C B Q501
R531
R583
C509
1
6.2B
DJ06
R5F5
11
PMK04
R592
L5S1
R5S2
R502
R510
R508
C516
R501
C589
R558
C556
R5E8
4 3
R5F8
C5F4
23
30
R5G3
R5G4
R5G1
R5G2
DJ09
R5G0
C571
Q503
3
REMOTE
SENSOR
C535
R590
R5C7
B C E
IC503
R5F9
33
X501
R518
DJ10
R511
L506
C518
R517
9
C537
R564
PG.ADJ
IC5F1
44
C519
C5S2
R550
R5B5
R5E7
C557
C532
1
5
C582
10
R515
X502
DJ11 C514
C515
DJ12
C570
R553
D903
C9A1
R943
RC5F1
1
To B
FRONT 1 C.B
PMK02
R5B4
R559
15
D502
20
75
80
C576
7
R5F6
R534
C561
C521
C501
25
60
65
70
R581
R5B1
R5C4
R5C1
R5C2
R5C3
X503
X502
R5H2
4
C577
R589
PMK02
2
R5F7
R523
R521
R543
ZD503
C533
30
51
55
3
1
RS501
1
R507
R562
R561
C574
C567
C575
Q160
4
MS501
C522
R5B3
R503
3
Q515
B
C
E
5
C541
5
6.2B
B
C
E
Q5S2
RS502
12
R556
L704
C948
C320
R528
R5C5
C124
D151
R155
R172
R162
R161
F105
IC501
15
R560
R577
R576
R575
2
C508
22
R5F3
R165
R164
Q154
L105
R151
R159
R158
Q159
C536
Q158
R171 R156
C121
ZD151
L104
L103
R114
TU701
C951
L941
R509
40
1
C749
R934
To
FULL
ERASE
HEAD
C703
R547
95
3
21
23
24
ZD9A1
X301
0
R578
C5F7
5
19
1
R425
C373
R579
C542
7
18
C952
C339
C341
C340
C337
C335
C334
R322
10
R166
Q152
B C E
C588
E C B Q5A1
R5A2
R567
C513
C524
C512
R5A1
C156
J
10 9
14
P3D03
7
R430
81
R169
R513
R152
B C E
L505
R707
12
R933
9
C950
R324
C343
60
1211
R323
C946
85
5.1B
R519
C159
C153
D153
R527
C564
C503
E
Q514 C504
B
C
E C581
R706
10
IC901
L401
90
R5H1
R170
R5F2
D152
Q162
B
C
C710
8
16
C942
13 15 17
LD501
40
B
C
E
R512
Q151
C151 B
C
E
E ZD152
E
C155
C
B
D107
R167
F103
B
E E
C118
C C
C
B B
E
Q156 Q157 Q155
B C E
R948
C947
R568
C527
35
H
D154
E
C
B
R5A3
C596
R157
C534
5
D904
Q153
E
C C
B B
Q161 Q165
C7M2
L701
C941
C955
C945
C953
L307
C358
C7M3
C714
C7M4
R7M4
R7M6
R7M5
C956
50
ZD104
C902
C943
C401
C909
45
ZD153
B
C
E
R7M3
ES502
R154
R557
C120
C119
C157
C713
C7M5
C919
R402
80
75
70
65
R914
C402
R505
31
C152
C117
E
C
B
C7M1
3
L705
R947
R913
R903
C403
C342
C705
7
C912
ES501
C116
1
L703 R7M1
C712
6
C406
R321
L702
C7M6
L912
C706
C958
L913
D902
C911
37
R911
35
42
R912
29 31 33
L911
L914
C918
L916
C913
R916
R915
38 40
C901
L906
R906
36
18 20
L901
R904
5
2
C346
55
51
34
16
21
D109
D108
FR02
14
17 19
R120
R119
D106
15
C708
R121
C115
10 12
28 30 32
23 25 27
13
R704
C405 [FOR GX910LE]
15
20
C328
C329
C330
C914
C904
C350
C302
C345
1
5
10
1
25
30
R317
C351
L902
C903
L904
Q403
R333
C348
R417
R905
Q404
R409
R408
R431
C301
R413
R412
R3A2
R310
C369
C352
C322
C319
C372
R325 C315
C324
C431
C408
L402
R309
C314
L306
8
22 24 26
3P: GX910LE
6P: FX970LE
C344
Q304
E
C
B
9 11
6
R350
C3A1
R403 R424
C311
R312
R422
C421
C317
C376
C543
1 2 3 IC103
C316 C318
C326
C325
R303
L309
R546
R118
L308
R338
R341
R306
R349
R410
R419
1
C331
C336
3
4
7
R949
8 7
5
2
C327
2
C354
C332
C333
4
E C B
C371
9
6
R522
IC301
R302
R116
10
7
C114
R117
12 11
D105
13
8
C368
BC102
D155
15
R304
R340
R319
PMC01
R316
C216
C214
C215
R209
C551
C313
T101
E
L304
R103
D102
C526
P3D01
81
6
Q305
50
4
R318
E C B
IC502
D301
45
2
Q303
C312
2
40
1
R526
9
10
4
5
3
1
P3D02
R314
C323
7
L524
6
5
[FOR GX910LE]
R3B1
35
2
R313
C417
C412
31
3
R315
C528
C105
L303
C305
3
C702
85
1
6
TL401
R525
C530
4
C529
5
Q302
E
C
R311
B C310
1
R901
90
IC102
C111
R104
4
1
C303
7
03A2
B
C
E
95
C122
3
R415
R416
C416
R418
C3B1
B
C
E
0
PML01
ZD501
5
R420
B
C
E
2
3
C306
B
C
E
C415
JK901
6
1
C908
10
3
R337
1
4
1
C106
C367
1
IC101
D104
C375
C544
C414
C353
R308
L301
C413
R414
C304
C418
R335
C525
2
C363
C309
Q405
R563
D509
C103
C545
BC101
R102
C109
R569
E
C
B
L405
C420
C370
R109
C112
1
C217
C424
R535
D
3
R3A3
X201
R205
R210
R206
C201
R101
C
5
R204
C212
FH02
Q402
7
R421
C102
BD101
9
C419
F101
C213
R411
1211
E
C
B
R307
R305
C307
L302
Q301
Q201
L907
2
PMD01
C355
Q3A1
C423
B C E
C546
B C E
R404
C410
R406
19 21 23 24
R407
13 15 17
C466
Q401
E
C
B
C4A1
C208
L201
R491
R3A1
R490
IC201
Q164
12
AV2 ENTREE(DECODEUR)
P3D01
PMD01
C207
C206
C204
C205
C203
R211
C211
C209
R212
B
I
11
10
To
LOWER DRUM
PMD01
P3D02
C210
L102
C101
FH01
G
9
8
BL
PW101
F
7
To
CTL/AUDIO
HEADS
JK901
A
BR
6
To
LOADING
MOTOR
32
WIRING-2 (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-3 (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
33
SW5A9
7
IC DESCRIPTION
IC, HD3977RC17F
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
34
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)
35
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.
36
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.)
37
Pin No.
Pin Name
I/O
Description
1. Port to ditect the mechanism’s position.
MODE SW3
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
Power failu e s gnal t
5.3VA
AVc No (Back-up) t
LOADING
10MHz OSC t
UNLOADING
36.7 8kHz OSC t
MODE SW2
Res t pulse t
I
76
No.
(µ - C O M m e o r y l s t a e )
75
2. Deck and Mode SW Positions.
MODE SW4
Normal
Power failu e operation P o w e r f a i l u Power failu e
compensatio
compensatio relation sta e s t a e compensatio can el sta
74
Vc for (Back-up) t
78
MODE SW1
I-LIMIT
I
AC POWER ON AC POWER OF
77
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.
38
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
39
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
40
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
41
4
7
42
3
FRONT-2 C.B
A
2
A
1
FRONT-1 C.B
A
B
6
DIG5F1
5
8
TU701
12
C
11
B
MAIN C.B
B
C
10
9
B
MECHANICAL EXPLODED VIEW 1/1
MECHANICAL MAIN PARTS LIST 1/1
REF. NO
!
PART NO.
001
001
002
003
004
KANRI
DESCRIPTION
NO.
S7-21R-F09-4B0
PANEL ASSY FRONT<970LEK>
S7-21R-F09-4C0
PANEL ASSY FRONT<910LEK>
———
PANEL FRONT(HV-FX970L)
S4-426-81A-000
SPR,DOOR
S5-80R-003-3E0
DOOR CST<910LEK>
004
005
006
007
008
S5-80R-003-3C0
S5-50R-021-0A0
S2-10R-002-3D0
———
S1-10R-012-8K0
DOOR CST<970LEK>
COVER BOTTOM
FRAME MAIN
DECK ASSY D33 4HD
CASE TOP
009
010
011
012
A
S4-10R-CHD-01A
S7-21R-D02-3K0
S1-11R-008-9B0
S9-30R-013-3A0
87-741-097-410
POWER CORD
PANEL ASSY DISTRIBUTOR
CASE ASSY
HOLDER DIGITRON
SCREW,3-12
B S3-530-51A-000
C S3-531-36A-000
SCREW,SPECIAL
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
43
031
024
024
010
44
504
[For FX970LE]
017
012
[For GX910LE]
011
022
401
401
001
401
019
018
003
[For GX910LE]
003
[For FX970LE]
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
MOTOR(MECH)
HOLDER FPC<970LEK>
HOLDER FPC<910LEK>
CAP,FPC
024
025
026
027
028
KANRI
DESCRIPTION
NO.
S2-61R-000-9A0
ARM ASSY IDLER-J<970LEK>
S8-10R-005-3A0
BRACKET L/D MOTOR
S6-81R-000-7A0
MOTOR ASSY L/D
S4-70R-002-5A0
GEAR WHEEL
S4-08R-000-2A0
REEL T
005
———
006
———
007
———
008 S9-70R-004-3A0
009 S2-60R-001-1A0
CAP,A CLEANER
ROLLER CLEANER
ARM CLEANER
SPRING T/UP
ARM T/UP
029
031
032
401
406
S2-61R-001-1A0
S9-70R-005-2A0
S1-41R-000-2A0
87-261-071-410
87-261-094-410
010
011
012
013
014
S7-70R-000-4A0
S2-61R-000-4A0
S0-41R-000-3A0
S0-41R-000-4A0
S0-41R-000-7A0
BAND ASSY TENSION(MECH)
ARM ASSY TENSION
BASE ASSY P2
BASE ASSY P3
BASE ASSY P4
409 87-741-095-410
504 S3-540-01B-000
A01
———
A01
———
A02
———
SCREW,PAN HEAD 3.0-8.0
WASHER,P.S 3.1-6-0.5
DRUM ASSY D33
DRUM(CIRC) ASSY D33-4CH
ARM ASSY
015
016
017
018
019
S8-70R-000-1A0
S0-41R-000-5A0
S4-08R-000-1A0
S9-70R-005-4A0
S4-21R-000-3A0
OPENER LID
BASE ASSY A/C HEAD
REEL S
SPRING SB
BRAKE ASSY S
A03 S2-61R-000-3A0
A04
———
ARM ASSY CLEANER
BRACKET ASSY L/D MOTOR
020
021
022
023
024
S9-70R-005-3A0
S4-21R-000-4A0
S5-238-33B-000
S9-80R-001-0A0
S2-61R-000-8A0
SPRING TB
BRAKE ASSY T
HEAD FE D33
SUPPORTER CST
ARM ASSY IDLER-J<910LEK>
001
002
003
003
004
PART NO.
KANRI
NO.
S7-23R-010-5D0
S6-80R-B00-04A
S9-30R-010-7A0
S9-30R-010-6A0
S0-06R-001-4A0
DESCRIPTION
REF. NO
45
PART NO.
ARM ASSY PINCH
SPRING TENSION
CHASSIS ASSY
PAN HEAD SCREW 2.6-4
PAN HEAD SCREW 3-6
053
054
426
060
517
46
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 FX970LE]
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<970LEK>
———
LEVER JOG<970LEK>
———
LEVER SLOW<970LEK>
S9-70R-004-9A0
SPRING JOG<970LEK>
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<970LEK>
ARM JOG<970LEK>
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
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
———
47
SA-PF0-262-218
87-261-094-410
SW-ZZR-000-4B0
SW-ZZR-000-4A0
S4-70R-002-8A0
GEAR ASSY P2
BRACKET ASSY JOG
BRAKET ASSY CAPSTAN
101
426
102
A24
110
103
48
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
———
49
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
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
Two Hooks
A-2
Chassis Hole
A-2
4
Guide CST
2 Hooks
A-2
2,3,4
5
Bracket Side (L)
1 Screw
A-2
2,3,4
6
Bracket Assembly Door
1 Screw
A-2
2,3,4,5,6
7
Arm Assembly F/L
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
Lever
Assembly S/W 8
2 Hooks
A-3
11 Base Assembly A/C Head
1 Screw
A-3
12 Brake Assembly S
Chassis Hole
A-4
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
10 Head F/E
2,3
16 Reel T
Brake Spring T
3 Screws , Cap FPC A-1
Holder Assembly CST
13 Brake Assembly T
Reel S 15
Drum Assembly
Plate Assembly Top
43 Arm Assembly
ldler Jog
Arm Assembly 14
Tension
Band Assembly
Tension
1
3
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.
50
Figure
2
9 Arm Assembly Cleaner
34 Bracket Assembly
L/D Motor
11 Base Assembly
A/C Head
21 Arm Assembly Pinch
Fixing Type
2
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
51
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
52
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.
53
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.
54
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.
55
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.
56
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.
57
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).
58
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
59
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.
60
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
61
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.
62
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
63
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
64
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
Adjustment Point
Test Conditions VCR(VCP) State
Test Equipment Connection Points
• Guide Roller Height
Adjustment Screws
• Play an Alignment Tape
• CH-1:PB RF Envelope
• CH-2:NTSC: SW 30Hz
PAL: SW 25Hz
• Head Switching Output
Point
• RF Envelope Output
Point
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
65
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
66
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
67
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.
• Oscilloscope
• Alignment tapes
• Blank Tape
• Post Height Adjusting Driver
• Screw Driver(+) Type 5mm
Test Conditions
(Mechanism Condition)
Connection Point
Test Equipment/ Fixture
• 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.
68
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
69
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
70
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
71
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.
72
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.
73
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.
74
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?
75
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?
76
2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111
920074
Printed in Singapore