JVC GR-VF10EG User manual

No. 86709
August 2002
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
Regarding service information other than these sections, refer to the service manual No. 86693 (GR-DVL145EG).
Also, be sure to note important safety precautions provided in the service manual.
GR-VF10EG
TECHNISCHE DATEN
(The specifications shown pertain specifically to the model GR-VF10)
DIGITAL-CAMCORDER
SERVICE MANUAL
Anschlüsse
S
Ausgang :Y: 1 Vss, 75 Ø, analog
C : 0,29 Vss, 75 Ø, analog
AV
Videoausgang :1Vss, 75 Ø, analog
Audioausgang :300 mV (eff.), 1 kØ, analog, Stereo
DV
Ausgang :4-pol. nach IEEE 1394
Netzgerät
Spannungsversorgung :110 V bis 240 V Netzstrom, 50 Hz/60 Hz
Nennabgabe :11 V, Gleichstrom, 1 A
Die Angaben gelten, falls nicht anders angegeben, für die SP-Geschwindigkeit.
Irrtümer sowie Änderungen des Designs und der technischen Daten vorbehalten.
Camcorder
Allgemein
Spannungsversorgung :11 V Gleichstrom (bei Netzbetrieb)
7,2 V Gleichstrom (bei Batteriebetrieb)
Leistungsaufnahme
Bei ausgeschaltetem LCD-Monitor und eingeschaltetem Sucher : Ca. 4,3 W
Bei eingeschaltetem LCD-Monitor und ausgeschaltetem Sucher : Ca. 5,3 W
Abmessungen (B x H x T):83 mm x 94 mm x 223 mm
(bei eingeklapptem LCD-Monitor und vollständig
abgesenktem Sucher)
Gewicht :Ca. 630 g
Umgebungs-Betriebstemperatur :0°C – 40°C
Umgebungs-Luftfeuchtigkeit :35% – 80%
Umgebungs-Lagerungstemperatur :–20°C – 50°C
Bildwandler :1/4” -CCD-Chip
Objektiv :F1,6, f = 3,9 mm bis 62,4 mm, 16fach Motorzoom
Filterdurchmesser :40,5 mm
LCD-Monitor :2,5” diagonal, LCD-Bildschirm/TFT Active Matrix
Sucher :Elektronischer Sucher mit 0,24”-Schwarzweiß-LCD
Lautsprecher :Mono
Digital-Camcorder
Aufnahmeformat :DV-Format (SD-Modus)
Farbsignalnorm :PAL
Aufnahme/Wiedergabe :Video: Digital-Komponenten-Aufnahme
:Audio: PCM-Digitalaufnahme, 32-kHz 4-Kanal (12 Bit),
48 kHz 2-Kanal (16 Bit)
Cassette :Mini-DV
Bandgeschwindigkeit :SP: 18,8 mm/Sek.
LP: 12,5 mm/Sek.
Max. Aufnahmezeit :SP: 80 Min.
(mit 80-Min.-Cassette) LP: 120 Min.

TABLE OF CONTENTS
DIFFERENT TABLE ........................................................................................................................................................................................... 1
5. PARTS LIST (5-1 to 5-4)
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ................................................................................................................................ 5-1
5.2 MECHANISM ASSEMBLY <M3> .......................................................................................................................................................... 5-3
1
REF. MODEL GR-DVL145EG-X GR-VF10EG!NO. ITEM
PACKING AND ACCESSORY ASSEMBLY <M1> Note: As for IB (INSTRUCTIONS), refer to sec.5.
The following table indicate different parts number between models GR-DVL145EG-X and GR-VF10EG.
1PACKING CASE LY32746-001A LY32928-002A
9WARRANTY CARD BT-54013-2 *BT-54013-4
36 MINI DV TAPE — M-DV60VF
Notes : Mark — is not used.
Mark * reference model was also changed.
REF. MODEL GR-DVL145EG-X GR-VF10EG!NO. ITEM
FINAL ASSEMBLY <M2>
101 UPPER CASE ASSY LY20867-002A *LY20867-002B
149 ZOOM UNIT LY20693-001B *LY20693-005B
181 SPECIAL SCREW,X2 LY30019-026A *LY30019-026B
REF. MODEL GR-DVL145EG-X GR-VF10EG!NO. ITEM
MECHANISM ASSEMBLY <M3>
454 REEL DISK(TAKE UP)ASSY LY40443-002A *LY40443-002B
468 DRUM ASSY YDV2086S(CX) YDV2086T(CX)
490 MECHA(A)ASSY —
---
YMA0025YJ
REF. MODEL GR-DVL145EG-X GR-VF10EG
!NO. ITEM
MONITOR ASSEMBLY <M5>
503 BRACKET(FRM1) LY32748-001B *LY32748-001C
519 DIFFUSION SHEET(2.5) LY43362-001A *LY43901-001B
REF. MODEL GR-DVL145EG-X GR-VF10EG!NO. ITEM
MAIN BOARD ASSEMBLY <01>
IC4301 IC JCY0158 *JCY0150
R4347 MG RESISTOR — *NRSA6AJ-223W
R4348 MG RESISTOR — *NRSA6AJ-223W
R4349 MG RESISTOR — *NRSA6AJ-223W
R4350 MG RESISTOR — *NRSA6AJ-223W

Printed in Japan
0208WPC
VICTOR COMPANY OF JAPAN, LIMITED
HOME AV NETWORK BUSINESS UNIT 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

5-1
SECTION 5
PARTS LIST
SAFETY PRECAUTION
Parts identified by the symbol are critical for safety. Replace only with specified part numbers.
5.1 PACKING AND ACCESSORY ASSEMBLY <M1>
The instruction manual to be provided with this product will differ according to the destination.
5
6
2
1
31
30
3
FINAL ASSY
<M2>
18
19
LABEL
(SERIAL)
15
32
35
20
34
17
16
9
36

5-2
# REF No. PART No. PART NAME, DESCRIPTION
---------------- ----------------------- -----------------------------------------------------
******************************
PACKING AND ACCESSORY ASSEMBLY <M1>
1LY32928-002A PACKING CASE
2LY32747-001A CUSHION
3LY30023-015A POLY BAG
5QPA02003506 POLY BAG
! 6LYT1058-002A INST.BOOK(GE)
! LYT1058-003A INST.BOOK(FR)
! LYT1058-004A INST.BOOK(IT)
9BT-54013-4 WARRANTY CARD
15 QPA01703005 POLY BAG
16 QAM0212-001 CABLE ASSY,AUDIO/VIDEO CABLE
17 QQR0918-002 CORE FILTER
! 18 LY20847-001C AC ADAPTER,AP-V12EG
19 QQR0917-002 CORE FILTER
! 20 QMPL120-190-JR POWER CORD
! 30 LY32566-001A BATTERY PACK,BN-V408U
31 LY20186-001A SHOULDER STRAP
32 LY43606-001A LENS CAP ASSY
34 QQR0491-002 CORE FILTER
35 QAM0302-001 ADAPTER PLUG
36 — MINI DV TAPE, M-DV60VF
•INSTRUCTIONS
GE ...... GERMANY
FR ....... FRENCH
IT ........ ITALIAN

5-3
405
418 407
408
438
436
439
449 448 437
419
417 406
406
480
400
490
406
414 414
469
402
403
411
410
411
411
411
409
432
435
433
434
430
429
441
461
460
457
459
458
443
442
453
455
454
465
464
465
466
467
452
457
456
471
471
482
470
431
473
474
401
478
472
462
440
440
445
444
447
463
424
421
420 425 416
415
428
427
422
AA
AA
AA
423
426
446
451
450
469
468
469
413
AA
AA
AA
AA
AA
AA
BB
BB
BB
BB
482
481
482
5.2 MECHANISM ASSEMBLY <M3>
Classification Part No. Symbol in drawing
Grease KYODO-SH-JB AA
Oil YTU94027 BB
NOTE:The section marked in AA and BB indicate
lubrication and greasing areas.
BEWARE OF BOGUS PARTS
Parts that do not meet specifications may cause trouble in
regard to safety and performance. We recommend that
genuine JVC parts be used.

# REF No. PART No. PART NAME, DESCRIPTION # REF No. PART No. PART NAME, DESCRIPTION
---------------- ----------------------- ----------------------------------------------------- ----------------- ----------------------- -----------------------------------------------------
5-4
******************************
MECHANISM ASSEMBLY <M3>
400 YMA0025WCC/E MECHA(A)ASSY
401 LY10240-001D MAIN DECK ASSY
402 LY30436-001J SLANT POLE ARM ASSY
403 YQ44246 SLIT WASHER
405 LY10080-001V RAIL ASSY
406 YQ44246 SLIT WASHER,X3
407 LY40353-001D GUIDE ROLLER(S)ASSY
408 LY30002-006C COMPRESSION SPRING
409 QAR0026-002 CAPSTAN MOTOR
410 LY30504-001C CATCHER(T)ASSY
411 YQ43893 MINI SCREW,X4
413 LY30448-001E MOTOR BRACKET ASSY
414 YQ43893 MINI SCREW,X2
415 LY31840-001A WORM WHEEL
416 YQ44246 SLIT WASHER
417 LY40496-001C ROTARY ENCODER
418 YQ43893 MINI SCREW
419 YQ44246 SLIT WASHER
420 LY42632-001A GEAR HOLDER
421 YQ43893-6 MINI SCREW
422 LY31841-001A MAIN CAM
423 LY31842-001A BRAKE CONTROL PLATE
424 YQ43893 MINI SCREW
425 LY42633-001A TAKE UP CONTROL LEVER ASSY
426 LY31844-001A SLIDE LEVER ASSY
427 LY31846-001A CONNECT GEAR
428 YQ44246 SLIT WASHER
429 LY31847-001A SUB CAM
430 YQ43893 MINI SCREW
431 LY31785-001A PINCHI ROLLER ARM UNIT
432 YQ44246 SLIT WASHER
433 LY31850-001A CHARGE ARM ASSY
434 YQ44246 SLIT WASHER
435 LY42643-001A BRAKE CONTROL LEVER ASSY
436 LY42645-001A REEL DRIVE PULLEY ASSY
437 YQ44246-2 SLIT WASHER
438 LY40391-002B CENTER GEAR ASSY
439 LY40396-001A TIMING BELT
440 LY40413-001A COLLAR,X2
441 LY31854-001A GUIDE ARM ASSY
442 LY31786-001A SLIDE GUIDE PLATE UNIT
443 YQ43893-2 MINI SCREW
444 LY42651-001B TENSION ARM ASSY
445 YQ44246 SLIT WASHER
446 LY30471-001D PAD ARM ASSY
447 YQ44246 SLIT WASHER
448 LY42745-001A IDLER ARM ASSY
449 YQ44246-2 SLIT WASHER
450 LY31861-001A GUIDE PIN(SUPPLY)
451 YQ43893 MINI SCREW
452 LY40441-001B REEL DISK(SUPPLY)ASSY
453 YQ44246 SLIT WASHER
454 LY40443-002B REEL DISK(TAKE UP)ASSY
455 YQ44246 SLIT WASHER
456 LY31788-001A CONTROL PLATE UNIT
457 YQ44246 SLIT WASHER,X2
458 LY40444-001E LOADING BRAKE ASSY
459 YQ44246 SLIT WASHER
460 LY40452-001C SUB BRAKE ASSY
461 YQ44246 SLIT WASHER
462 LY31863-001B RELEASE GUIDE ASSY
463 YQ44246 SLIT WASHER
464 LY20146-001H REEL COVER ASSY
465 YQ43893-4 MINI SCREW,X2
466 YQ43893 MINI SCREW
467 YQ44246 SLIT WASHER
468 YDV2086T(CX) DRUM ASSY
469 YQ43893 MINI SCREW,X3
470 LY20630-001A PWB HOLDER
471 YQ43893 MINI SCREW,X2
472 LY10242-001A SLIDE DECK ASSY
473 LY31833-001A LOADING GUIDE
474 YQ43893 MINI SCREW
478 LY31832-001D DECK ASSY
480 LY41573-001A WASHER
481 LY31867-001B CASSETTE HOUSING ASSY
482 YQ43893-4 MINI SCREW,X3
490 YMA0025YJ MECHA(A)ASSY
(Sanwa)-M2D122
GR-VF10EG
E. & O. E. No. 86709

SERVICE MANUAL
No. 86693
April 2002
SPECIFICATIONS
DIGITAL VIDEO CAMERA
Printed in Japan This service manual is printed on 100% recycled paper.
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
GR-DVL145EG
No. 86693
GR-DVL145EG
VICTOR COMPANY OF JAPAN, LIMITED
VIDEO DIVISION
S40894
(The specifications shown pertain specifically to the model GR-DVL145EG/EK)
Camcorder
General
Power supply : DC 11.0 V (Using AC Adapter)
DC 7.2 V (Using battery pack)
Power consumption
LCD monitor off, viewfinder on : Approx. 4.3 W
LCD monitor on, viewfinder off : Approx. 5.3 W
Dimensions (W x H x D) : 83 mm x 94 mm x 223 mm
(with the LCD monitor closed and the viewfinder
pushed down)
Weight : Approx. 630 g
Operating temperature : 0°C to 40°C
Operating humidity : 35% to 80%
Storage temperature : –20°C to 50°C
Pickup : 1/4" CCD
Lens :
F 1.6, f = 3.9 mm to 62.4 mm, 16:1 power zoom lens
Filter diameter : ø40.5 mm
LCD monitor : 2.5" diagonally measured, LCD panel/TFT active
matrix system
Viewfinder : Electronic viewfinder with 0.24" black/white LCD
Speaker : Monaural
Digital Video Camera
Format : DV format (SD mode)
Signal format : PAL standard
Recording/Playback format : Video: Digital component recording
: Audio: PCM digital recording, 32 kHz 4-channel
(12-bit), 48 kHz 2-channel (16-bit)
Cassette : Mini DV cassette
Tape speed : SP: 18.8 mm/s
LP: 12.5 mm/s
Maximum recording time : SP: 80 min.
(using 80 min. cassette) LP: 120 min.
Connectors
S-Video
Output : Y: 1 V (p-p), 75 Ω, analogue
C: 0.29 V (p-p), 75 Ω, analogue
AV
Video output : 1 V (p-p), 75 Ω, analogue
Audio output : 300 mV (rms), 1 kΩ, analogue, stereo
DV
Output : 4-pin, IEEE 1394 compliant
AC Adapter
Power requirement : AC 110 V to 240 V`, 50 Hz/60 Hz
Output : DC 11 V , 1 A
Specifications shown are for SP mode unless otherwise indicated. E & O.E.
Design and specifications subject to change without notice.

Important Safety Precautions
INSTRUCTIONS
1. DISASSEMBLY
1.1 BEFORE ASSEMBLY AND DISASSEMBLY ......................... 1-1
1.1.1 Precautions ..................................................................... 1-1
1.1.2 Assembly and disassembly ............................................ 1-1
1.1.3 Destination of connectors ............................................... 1-1
1.1.4 Disconnection of connectors (Wires) .............................. 1-1
1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,
ASSEMBLY AND ADJUSTMENT ......................................... 1-2
1.2.1 Tools required for adjustments ........................................ 1-2
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND
BOARD ASSEMBLY ............................................................. 1-2
1.3.1 Disassembly flow chart ................................................... 1-2
1.3.2 Disassembly method ...................................................... 1-3
1.4 $MONITOR ASSEMBLY ..................................................... 1-9
1.4.1 Disassembly/assembly of monitor assembly (for 2.5”-type LCD) . 1-9
1.4.2 Disassembly/assembly of hinge assembly (for 2.5”-type LCD) . 1-9
1.5 #E. VF ASSEMBLY (B/W) ................................................. 1-10
1.5.1 Disassembly/assembly of E.VF ASSEMBLY (for the B/W VF) .. 1-10
1.6 DISASSEMBLY/ASSEMBLY OF 5 OP BLOCK ASSEMBLY/
CCD BOARD ASSEMBLY ................................................... 1-11
1.6.1 Precautions ................................................................... 1-11
1.6.2 How to remove CCD board assembly and
CCD base assembly ..................................................... 1-11
1.6.3 How to assemble CCD base assembly and
CCD board assembly .................................................... 1-11
1.6.4 Replacement of Service Repair Parts .......................... 1-11
1.7 EMERGENCY DISPLAY ..................................................... 1-12
1.8 SERVICE NOTE .................................................................. 1-13
2. MECHANISM ADJUSTMENT
2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR .. 2-1
2.1.1 Precautions ..................................................................... 2-1
2.1.2 Notes on procedure for disassemby/assembly ............... 2-1
2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,
ASSEMBLY AND ADJUSTMENT ......................................... 2-2
2.2.1 Tools required for adjustments ........................................ 2-2
2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2-3
2.3.1 General statement .......................................................... 2-3
2.3.2 Explanation of mechanism mode ................................... 2-3
2.3.3 Mechanism timing chart .................................................. 2-4
2.4 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2-5
2.4.1 Follow chart .................................................................... 2-5
2.4.2 Disassembly/assembly ................................................... 2-8
2.4.3 List of procedures for disassembly ............................... 2-14
2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE .... 2-15
2.6 MECHANISM ADJUSTMENTS .......................................... 2-16
2.6.1 Assembling slide deck assembly and main deck assembly . 2-16
2.6.2 Locating tension pole .................................................... 2-17
2.7 SERVICE NOTE .................................................................. 2-18
2.8 COMPATIBILITY ADJUSTMENT ........................................ 2-20
2.8.1 Jig connector cable connection .................................... 2-20
2.8.2 Tape pattern check ....................................................... 2-21
TABLE OF CONTENTS
Section Title Page Section Title Page
3. ELECTRICAL ADJUSTMENT
3.1 PRECAUTION ....................................................................... 3-1
3.2 SETUP .................................................................................. 3-2
4. CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM .......................................... 4-1
CIRCUIT BOARD NOTES ........................................................... 4-2
4.1 BOARD INTERCONNECTIONS ........................................... 4-3
4.2 MAIN IF SCHEMATIC DIAGRAM ............................................... 4-5
4.3 SYSCON SCHEMATIC DIAGRAM ............................................. 4-7
4.4 D.CPU SCHEMATIC DIAGRAM ................................................. 4-9
4.5 MDA SCHEMATIC DIAGRAM .................................................. 4-11
4.6 AUDIO SCHEMATIC DIAGRAM ............................................... 4-13
4.7 DVMAIN SCHEMATIC DIAGRAM ............................................ 4-15
4.8 PRE/REC SCHEMATIC DIAGRAM .......................................... 4-17
4.9 V OUT SCHEMATIC DIAGRAM ............................................... 4-19
4.10 DSP SCHEMATIC DIAGRAM ................................................ 4-21
4.11 MONI IF SCHEMATIC DIAGRAM .......................................... 4-23
4.12 OP.DRV SCHEMATIC DIAGRAM .......................................... 4-25
4.13 TG SCHEMATIC DIAGRAM ................................................... 4-27
4.14 REG SCHEMATIC DIAGRAM ................................................ 4-29
4.15 MONITOR SCHEMATIC DIAGRAM ....................................... 4-31
4.16 LCD BL SCHEMATIC DIAGRAM ........................................... 4-33
4.17 CCD SCHEMATIC DIAGRAM ................................................ 4-35
4.18 JUNCTION SCHEMATIC DIAGRAM ..................................... 4-36
4.19 JACK SCHEMATIC DIAGRAM .............................................. 4-37
4.20 B/W VF SCHEMATIC DIAGRAM ........................................... 4-39
4.21 MAIN CIRCUIT BOARD ......................................................... 4-41
4.22 MONITOR CIRCUIT BOARD ................................................. 4-47
4.23 LCD BL CIRCUIT BOARD ...................................................... 4-49
4.24 CCD, VF AND JUNCTION CIRCUIT BOARDS ..................... 4-51
4.25 JACK CIRCUIT BOARD ......................................................... 4-53
4.26 VOLTAGE CHARTS ............................................................... 4-55
4.27 POWER SYSTEM BLOCK DIAGRAM ................................... 4-57
4.28 VIDEO SYSTEM BLOCK DIAGRAM ...................................... 4-59
4.29 REGULATOR SYSTEM BLOCK DIAGRAM .......................... 4-63
5. PARTS LIST
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ............... 5-1
5.2 FINAL ASSEMBLY <M2> ..................................................... 5-3
5.3 MECHANISM ASSEMBLY <M3> ......................................... 5-6
5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4> ................ 5-8
5.5 MONITOR ASSEMBLY <M5> .............................................. 5-9
5.6 ELECTRICAL PARTS LIST ................................................. 5-10
MAIN BOARD ASSEMBLY <01> ........................................... 5-10
MONITOR BOARD ASSEMBLY <02> .................................... 5-17
LCD BL BOARD ASSEMBLY <03> ........................................ 5-18
CCD BOARD ASSEMBLY <04> ............................................. 5-19
JUNCTION BOARD ASSEMBLY <05> .................................. 5-19
JACK BOARD ASSEMBLY <06> ........................................... 5-19
B/W VF BOARD ASSEMBLY <08> ........................................ 5-19

Important Safety Precautions
Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the
countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions
when a set is being serviced.
Fig.1
1. Locations requiring special caution are denoted by labels and in-
scriptions on the cabinet, chassis and certain parts of the product.
When performing service, be sure to read and comply with these
and other cautionary notices appearing in the operation and serv-
ice manuals.
2. Parts identified by the !symbol and shaded ( ) parts are
critical for safety.
Replace only with specified part numbers.
Note: Parts in this category also include those specified to com-
ply with X-ray emission standards for products using
cathode ray tubes and those specified for compliance
with various regulations regarding spurious radiation
emission.
3. Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as specified.
4. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
5. Use specified insulating materials for hazardous live parts. Note
especially:
1) Insulation Tape 3) Spacers 5) Barrier
2) PVC tubing 4) Insulation sheets for transistors
6. When replacing AC primary side components (transformers, power
cords, noise blocking capacitors, etc.) wrap ends of wires securely
about the terminals before soldering.
Power cord
Fig.2
10. Also check areas surrounding repaired locations.
11. Products using cathode ray tubes (CRTs)
In regard to such products, the cathode ray tubes themselves, the
high voltage circuits, and related circuits are specified for compli-
ance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the cath-
ode ray tubes and other parts with only the specified parts. Under
no circumstances attempt to modify these circuits.
Unauthorized modification can increase the high voltage value and
cause X-ray emission from the cathode ray tube.
12. Crimp type wire connector
In such cases as when replacing the power transformer in sets
where the connections between the power cord and power trans-
former primary lead wires are performed using crimp type connec-
tors, if replacing the connectors is unavoidable, in order to prevent
safety hazards, perform carefully and precisely according to the
following steps.
1) Connector part number : E03830-001
2) Required tool : Connector crimping tool of the proper type which
will not damage insulated parts.
3) Replacement procedure
(1) Remove the old connector by cutting the wires at a point
close to the connector.
Important : Do not reuse a connector (discard it).
Fig.7
cut close to connector
Fig.3
(2) Strip about 15 mm of the insulation from the ends of the
wires. If the wires are stranded, twist the strands to avoid
frayed conductors.
15 mm
Fig.4
(3) Align the lengths of the wires to be connected. Insert the
wires fully into the connector.
Connector
Metal sleeve
Fig.5
(4) As shown in Fig.6, use the crimping tool to crimp the metal
sleeve at the center position. Be sure to crimp fully to the
complete closure of the tool.
I
•Precautions during Servicing
7. Observe that wires do not contact heat producing parts (heatsinks,
oxide metal film resistors, fusible resistors, etc.)
8. Check that replaced wires do not contact sharp edged or pointed
parts.
9. When a power cord has been replaced, check that 10-15 kg of
force in any direction will not loosen it.
1.25
2.0
5.5
Crimping tool
Fig.6
(5) Check the four points noted in Fig.7.
Not easily pulled free Crimped at approx. center
of metal sleeve
Conductors extended
Wire insulation recessed
more than 4 mm
S40888-01

•Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned
to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety
standards.
1. Insulation resistance test
Confirm the specified insulation resistance or greater between power cord plug prongs and exter-
nally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
2. Dielectric strength test
Confirm specified dielectric strength or greater between power cord plug prongs and exposed acces-
sible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals,
microphone jacks, earphone jacks, etc.). See table 1 below.
3. Clearance distance
When replacing primary circuit components, confirm specified clearance distance (d), (d’) be-
tween soldered terminals, and between terminals and surrounding metallic parts. See table 1
below.
4. Leakage current test
Confirm specified or lower leakage current between earth ground/power cord plug prongs and
externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug prongs and externally exposed accessible
parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and following
table 2.
5. Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out,
Audio in, Audio out or Fixing screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.
Fig. 10
Fig. 9
Fig. 8
Table 1 Specifications for each region
Table 2 Leakage current specifications for each region
Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
II
S40888-01
ab
c
V
A
Externally
exposed
accessible part
Z

1-1
(1) (2) (3) (4) (5)
SECTION 1
DISASSEMBLY
1.1.4 Disconnection of connectors (Wires)
Connector
Pull both ends of the connector in the arrow direction, re-
move the lock and disconnect the flat wire.
1.1 BEFORE ASSEMBLY AND DISASSEMBLY
1.1.1 Precautions
1. Be sure to remove the power supply unit prior to mount-
ing and soldering of parts.
2. When removing a component part that needs to discon-
nect the connector and to remove the screw for remov-
ing itself, first disconnect the connecting wire from the
connector and then remove the screw beforehand.
3. When connecting and disconnecting the connectors, be
careful not to damage the wire.
4. Carefully remove and handle the part to which some
spacer or shield is attached for reinforcement or insula-
tion.
5. When replacing chip parts (especially IC parts), desolder
completely first (to prevent peeling of the pattern).
6. Tighten screws properly during the procedures.
Unless specified otherwise, tighten screws at a torque
of 0.088N•m(0.9kgf•cm).
1.1.2 Assembly and disassembly
(1) Indicate the disassembly steps. When assembling, per-
form in the reverse order of these steps. This number
corresponds to the number in the disassembly diagram.
(2) Indicates the name of disassembly/assembly parts.
(3) Indicates the number in the disassembly diagram.
(4) Indicates parts and points such as screws, washers,
springs which must be removed during disassembly/
assembly.
Symbol Name, Point
S Screw
L Lock, Pawl, Hook
SD Soldering
夡(Others) Connector, Cover, Bracket, etc.
(Example)
• 2 (S1) : Remove the two screws (S1) for removing the
part 1.
• CN 2a: Disconnect the connector 2a .
•SD1: Unsolder at the point SD1.
(5) Precautions on disassembly/assembly.
1.1.3 Destination of connectors
Note:
Three kinds of double-arrows in connection tables re-
spectively show kinds of connector/wires.
↔: Wire
⇔: Flat wire
: Board to Board connector
[Example]
Fig. 1-1-1 Connector 1
Connector
Flat wire
Fig. 1-1-2 Connector 2
Connector
Flat wire
Extend the locks in the direction of the arrow for unlocking
and then pull out the wire. After removing the wire, immedi-
ately restore the locks to their original positions because
the locks are apt to come off the connector.
B-B connector
Pull the board by both the sides in the direction of the ar-
row for disconnecting the B-B connector.
Fig. 1-1-3 Connector 3
Connector
Connector
Fig. 1-1-4 Connector 4
Connector
CONN.
No. Pin No.
CONNECTOR
CN2MAIN CN101 ⇔MONITOR CN761 40
Note: Remove the parts marked in .
1COVER(ZOOM) Fig.1-3-1 (S1a),(S1b),2(L1a),2(L1b ) -
ASSY
2
UPPER CASE ASSY Fig.1-3-2 4(S2a),3(S2b),(L2),(S0cI NOTE2
( Inc.E.VF ASSY (S2d)
(B/W),SPEAKER/ CAP(DC JACK)
MONITOR) 聽CN2
STEP
No. PART Fig.No. POINT NOTE

1-2
1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,
ASSEMBLY AND ADJUSTMENT
1.2.1 Tools required for adjustments
1. Torque driver
Be sure to use to fastening the mechanism and exterior
parts because those parts must strictly be controlled for
tightening torque.
2. Bit
This bit is slightly longer than those set in conventional
torque drivers.
3. Tweezers
To be used for removing and installing parts and wires.
4. Chip IC replacement jig
To be used for adjustment of the camera system.
5. Cleaning cloth
Recommended cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens
surface.
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS
AND BOARD ASSEMBLY
1.3.1 Disassembly flow chart
This flowchart indicates the disassembly step for the cabi-
net parts and board assembly in order to gain access to
item(s) to be serviced. When reassembling, perform the
step(s) in reverse order.
Table 1-2-1
Table 1-3-1
Torque driver
YTU94088
1
Bit
YTU94088-003
2
3
Chip IC replacement jig
PTS40844-2
4
5
Cleaning cloth
KSMM-01
Tweezers
P-895
COVER(ZOOM) ASSY
UPPER CASE ASSY
(Inc.E.VF ASSY(B/W),SPEAKER/MONITOR)
FRONT COVER ASSY
(Inc. MIC)
OP BLOCK ASSY
/BRACKET(OP) ASSY
2
1
3
4
8
0
!
/
@
9
$
/
%
#
MONITOR ASSY
/MONITOR BOARD ASSY
E.VF ASSY (B/W)
MAIN BOARD ASSY
/MECHANISM ASSY
JUNCTION BOARD ASSY
LOWER CASE ASSY
(Inc.ZOOM UNIT)
5
/
6
/
7
OP BLOCK ASSY/JACK BOARD ASSY/
FRAME ASSY
REAR UNIT

1-3
1COVER(ZOOM) Fig.1-3-1 (S1a),(S1b),2(L1a),2(L1b ) -
ASSY
2
UPPER CASE ASSY Fig.1-3-2 4(S2a),3(S2b),(L2),(S2c) NOTE2
( Inc.E.VF ASSY (S2d)
(B/W),SPEAKER/ CAP(DC JACK)
MONITOR) 聽CN2
3FRONT COVER Fig.1-3-3 (S3a),2(S3b),(L3a) NOTE3a
ASSY (Inc.MIC) (L3b),聽CN3NOTE3b
4OP BLOCK ASSY Fig.1-3-4 聽CN4a,CN4b,CN4c-
/BRACKET(OP) 3(S4)
ASSY
5OP BLOCK ASSY Fig.1-3-5
/
6
JACK BOARD ASSY 3(S6)
/
7FRAME ASSY 2(S7)
8REAR UNIT Fig.1-3-6 聽CN8NOTE8
4(S8)
9
LOWER CASE ASSY Fig.1-3-7 聽CN9-
(Inc.ZOOM UNIT) (S9a),4(S9b),(L9a),(L9b)
0
JUNCTION BOARD Fig.1-3-8 聽CN0a,CN0b,CN0c NOTE0a
ASSY 2(S0),聽CN0d NOTE0b
!
MAIN BOARD ASSY Fig.1-3-9 (S!a),(L!a),SHIELD PLATE -
/聽CN!a,CN!b,CN!c
@
/MECHANISM ASSY 2(S!b),(L!b)
#E.VF ASSY (B/W) Fig.1-3-10 聽CN#,(S#a),(S#b) NOTE#a
(L#) NOTE#b
$MONITOR ASSY Fig.1-3-11 3(S$a),COVER(HINGE) NOTE$
/聽CN$, 2(S$b)
%MONITOR BOARD (S%a),PLATE(SPK), NOTE%
ASSY 3(S%b),(L%)
STEP
No. PART Fig.No. POINT NOTE
1.3.2 Disassembly method
Table 1-3-2
----------------- --------------------------------------
NOTE 2: Remove the CAP (DC JACK) before removing
these parts .
NOTE 3a: As it is difficult to remove (L 3 b), remove the
F. COVER ASSY by lowering it.
NOTE 3b: Be careful not to damage any parts.
Particularly, take care not to scratch or stain the
lenses.
NOTE 8: As screw No. 24 is hidden behind the cassette
cover, open the cassette cover to enable re-
moval of the screw.
NOTE 0a: As the CN572 is located at the back of the as-
sembly, unplug the three connectors and re-
move the screws before disconnecting the
CN572.
NOTE 0b: Be careful not to damage any of the switches.
CONN.
No. Pin No.
CONNECTOR
Table 1-3-3
Note:
Remove the parts marked in .
CN2MAIN CN101 ⇔MONITOR CN761 40
CN3MAIN CN106 ←→ MIC — 3
CN4a MAIN CN107 ⇔CCD — 20
CN4b MAIN CN108 ⇔OP BLOCK ASSY — 22
CN8MAIN CN104 ←→ REAR UNIT CN1 10
CN9MAIN CN109 ⇔ZOOM UNIT — 15
CN4c JACK CN502 ⇔MAIN CN103 20
CN0a JUNCTION CN571 ⇔MAIN CN113 34
CN0b JUNCTION CN574 ⇔ LOADING MOTOR —6
CN0c JUNCTION CN573 ⇔DRUM MOTOR — 11
CN0d JUNCTION CN572 ⇔SENSOR — 15
CN!a MAIN CN110 ⇔HEAD — 8
CN!b MAIN CN112 ⇔CAPSTAN MOTOR — 18
CN!c MAIN CN111 ⇔ROTARY ENCODER — 6
CN#MONITOR CN763 ⇔E.VF ASSY (B/W) CN721 20
CN$MONITOR CN764 ⇔LCD BL CN751 33/32
----------------- --------------------------------------
----------------- --------------------------------------
NOTE #a: To remove the unit, unlock the connector and
pull out the unit together with the FPC.
NOTE #b: When removing the unit, insert the FPC into the
gap.
NOTE $: When reassembling the MONITOR ASSY, be
careful not to damage any of the parts.
NOTE %: Be careful not to damage any of the parts.

1-4
2
()
13 14 15
8
(S 2d)
11
(S 2a)
CN 2
10
(S 2a)
9
(S 2a)
4
(S 2b)
NOTE
CAP
(DC JACK)
2
11
6
7
8
(BOTTOM SIDE) (REAR SIDE)
910
(L 2)
7
(S 2b)
6
(S 2b)
5
(S 2c)
3
(S 2a)
Fig. 1-3-1
1
1
(S 1 a)
2
(S 1 b)
(L 1 a)
(L 1 b)
Fig. 1-3-2

1-5
Fig. 1-3-3
3
NOTE a
(L 3b)
14
(S 3 b)
CN 3
13
(S 3 b)
12
(S 3 a)
(L 3a)
NOTE b
3
3
Fig. 1-3-4
4
BRACKET (OP)
ASSY
(CN 4b)
(CN 4a)
(CN 4c)
17
(S 4)
16
(S 4)
15
(S 4)

1-6
Fig. 1-3-6
5
7
6
21
(S 7)
*
22
(S 7)
18
(S 6)
19
(S 6)
20
(S 6)
*
*
: 0.196 N•m (2.0 kgf•cm)
8
8NOTE
CN 8
23
(S 8)24
(S 8)
25
(S 8)26
(S 8)
Fig. 1-3-5

1-7
Fig. 1-3-7
9
(L 9 a)
29
(S 9 b)
31
(S 9 b)
30
(S
9 b)
27
(S 9 a)
(L 9 b)
CN 9
28
(S 9 b)
Fig. 1-3-8 Fig. 1-3-9
NOTE a
EJECT SW
10
32
(S 10 )
33
(S 10 )
CN 10 b
CN 10 c
CN 10 a
CN 10 d
10
NOTE b
10
11
12
(L 11
b)
34
(S 11
a)
36
(S 11
b)
35
(S
11
b)
(L 11
a)
SHIELD
PLATE
CN 11 a
CN 11 b
CN 11 c

1-8
Fig. 1-3-11
42
(S 14 b)
43
(S 14 b)
41
(S
14 a)
40
(S
14 a)
39
(S
14 a)
(L 15 )
46
(S
15 b)
45
(S
15 b)
47
(S 15 b)
44
(S 15 a)
COVER
(HINGE)
PLATE
(SPK)
SW
14
15
CN 14
∗
∗
∗: 0.147 N
•
m (1.5 kgf
•
cm)
NOTE
15
NOTE
14
Fig. 1-3-10
13
38
(S 13
b)
37
(S 13
a)
NOTE a
NOTE b
(L 13
)
13
13
CN 13

1-9
Fig. 1-4-1
1.4 $MONITOR ASSEMBLY
Note:
The shape of the monitor assembly varies by the size
of the LCD screen.
For the 2.5”-type LCD, refer to Fig. 1-4-1.
1.4.1 Disassembly/assembly of monitor assembly
(for 2.5”-type LCD)
Note:
Be careful not to soil or scratch the monitor screen
through the disassembly/assembly work.
1. Remove the four screws 1 to 4 in numerical order. While
disengaging the six hooks (L$a to L$f) in alphabetical
order, remove the monitor cover assembly.
2. Unlock the connector a and then disconnect the FPC
while lifting the hinge assembly upwards to remove it to-
gether with the FPC.
Note$a:
For disconnecting the FPC, unlock the connector
first and then lift the hinge assembly upwards.
Accordingly, the FPC is disconnected together
with the hinge assembly.
Note$b: Treat the wires carefully.
3. Remove the screw (5), unplug the FPC from the connec-
tor b , and then remove the LCD BL board assembly,
DIF sheet and bracket (FRM2) in that order.
4. Remove the LCD module.
1.4.2 Disassembly/assembly of hinge assembly
(for 2.5”-type LCD)
1. Remove the three screws (6 to 8), and then remove the
hinge covers (1) and (2) by disengaging a total of four
hooks (L$g, L$h) at the two sides.
2. Separate the SW board assembly and the FPC from the
hinge assembly.
Note$c:
When connecting the FPC, arrange the FPC wire
by winding it around the shaft (hinge pin) of the
hinge assembly by two and a half turns while pay-
ing heed to the orientation of the hinge assembly
and FPC.
Note$d: When disassembling/assembling the hinge assem-
bly, pay careful attention to every part not to dam-
age anything.
c
c
a
a
b
b
d
d
MONITOR CASE
BRACKET
(FRM2)
LCD MODULE
LCD BL PWB
HINGE COVER(1)
HINGE ASSY
HINGE COVER(2)
MONITOR COVER
ASSY
a
b
HINGE
FPC
DIF SHEET
BRACKET
(FRM1)
1
(S a)
14
3
(S b)
14
4
(S b)
14
8
(S c)
14
6
(S d)
14
7
(S d)
14
(L c)
14
(L f)
14
(L e)
14
(L d)
14
(L a)
14
(L b)
14
(L g)
14
(L h)
14
NOTE b
14
NOTE c / d
14 14
NOTE a
14
MONI. FPC ASSY
NOTE c / d
14 14
NOTE c / d
14 14
∗
∗
∗
∗∗
5
(S c)
14
∗∗
2
(S a)
14
∗∗
∗∗∗
∗∗∗
∗: 0.069 N•m (0.7 kgf•cm)
∗∗∗ : 0.147N•m (1.5 kgf•cm)
∗∗ : 0.098 N•m (1.0 kgf•cm)