Page 1
SERVICE MANUAL
DIGITAL VIDEO CAMERA
VICTOR COMPANY OF JAPAN, LIMITED
VIDEO DIVISION
S40894
GR-DVDVX44EG/EK,DVX77EG/EK,DVX88EG
GR-DVX44EG/EK,DVX77EG/EK,DVX88EG
SPECIFICATIONS
Camcorder
For General
No. 86617
Power supply : DC 11.0 V } (Using AC Adapter)
Power consumption
LCD monitor off, viewfinder on :
LCD monitor on, viewfinder off :
Dimensions (W x H x D) : 51 mm x 120 mm x 97 mm
Weight : Approx. 500 g (GR-DVX88/DVX77)
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 1.8, f = 3.6 mm to 36 mm, 10:1 power zoom lens
Filter diameter : ø27 mm
LCD monitor : 2.5" diagonally measured, LCD panel/TFT active matrix system
Viewfinder : Electronic viewfinder with 0.44" colour LCD
Speaker : Monaural
For Digital Video Camera
Format : DV format (SD mode)
Signal format : PAL standard
Recording/Playback format : Video: Digital component recording
Cassette : Mini DV cassette
Tape speed : SP: 18.8 mm/s
Maximum recording time : SP: 80 min.
(using 80 min. cassette) LP: 120 min.
For Digital Still Camera (GR-DVX88/DVX77 only)
Storage media : SD Memory Card/MultiMediaCard
Compression system : Still image : JPEG (compatible)
Moving image : MPEG4 (compatible)
File size : 2 modes (XGA: 1024 x 768 pixels/VGA: 640 x 480 pixels)
Picture quality : 2 modes (FINE/STANDARD)
Approximate number of storable images
(with the provided memory card [8 MB], with Sound Effects pre-stored)
FINE : 40 (VGA), 20 (XGA)
STANDARD : 130 (VGA), 60 (XGA)
(with an optional memory card [16 MB])
FINE : 100 (VGA), 40 (XGA)
STANDARD : 290 (VGA), 140 (XGA)
(with an optional memory card [32 MB])
FINE : 210 (VGA), 90 (XGA)
STANDARD : 610 (VGA), 290 (XGA)
(with an optional memory card [64 MB])
FINE : 430 (VGA), 190 (XGA)
STANDARD : 1230 (VGA), 600 (XGA)
DC 7.2 V } (Using battery pack)
Approx. 4.4 W (GR-DVX88/DVX77), Approx. 4.0 W (GR-DVX44)
Approx. 5.2 W (GR-DVX88/DVX77), Approx. 4.8 W (GR-DVX44)
(with the LCD monitor closed and the viewfinder pushed back in)
Approx. 470 g (GR-DVX44)
: Audio: PCM digital recording, 32 kHz 4-channel (12-bit),
48 kHz 2-channel (16-bit)
LP: 12.5 mm/s
For Connectors
AV
Video output : 1 V (p-p), 75 Ω, analogue
Audio output : 300 mV (rms), 1 kΩ, analogue, stereo
Headphone output
(GR-DVX88/DVX77 only) : Stereo
DV
Input/output
(GR-DVX88 only) : 4-pin, IEEE 1394 compliant
Output
(GR-DVX77/DVX44 only) : 4-pin, IEEE 1394 compliant
AC adapter AP-V10EG
Power requirement : AC 110 V to 240 V`, 50 Hz/60 Hz
Output : DC 11 V } , 1 A
Dimensions (W x H x D) : 59 mm x 31 mm x 84 mm
Weight : Approx. 140 g (not including Power Cord)
Jack Box
For General
Dimensions (W x H x D) : 52 mm x 22 mm x 73 mm
Weight : Approx. 35 g
For Connectors
USB (GR-DVX88/DVX77 only) : Type B
EDIT (GR-DVX88/DVX77 only) : ø3.5 mm, 2-pole
S-Video
Output : Y : 1 V (p-p), 75 Ω, analogue
JLIP (GR-DVX44 only) : ø3.5 mm, 4-pole
PC (DIGITAL PHOTO)
(GR-DVX44 only) : ø2.5 mm, 3-pole
Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject
to change without notice.
C : 0.29 V (p-p), 75 Ω, analogue
Printed in Japan
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
No. 86617
April 2001
Page 2
TABLE OF CONTENTS
Section Title Page Section Title Page
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 DISASSEMBLY OF 5 MONITOR ASSEMBLY ..................... 1-8
1.4.1 5 Monitor assembly/Hinge assembly .............................. 1-8
1.4.2 Hinge assembly ............................................................... 1-8
1.5 DISASSEMBLY OF 7 OP BLOCK ASSEMBLY/CCD BOARD
ASSEMBLY........................................................................... 1-9
1.5.1 Precautions ..................................................................... 1-9
1.5.2
How to remove OP block assembly and CCD board assembly
How to install OP block assembly and CCD board assembly
1.5.3
1.5.4 Replacement of service parts .......................................... 1-9
1.6 DISASSEMBLY OF 9 E. VF ASSEMBLY ........................... 1-10
1.6.1 9 E. VF assembly.......................................................... 1-10
1.7 EMERGENCY DISPLAY .................................................... 1-11
1.8 SERVICE NOTE ................................................................. 1-12
2. MECHANISM ADJUSTMENT
2.1
PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR
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
2.6 MECHANISM ADJUSTMENTS .......................................... 2-16
2.6.1
Assembling slide deck assembly and main deck assembly.
2.6.2 Locating tension pole .................................................... 2-17
2.7 SERVICE NOTE .................................................................. 2-18
2.8 JIG CONNECTOR CABLE CONNECTION ........................ 2-20
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 [GR-DVX44EG/EK]........... 4-3
4.2 BOARD INTERCONNECTIONS
[GR-DVX77EG/EK, GR-DVX88EG] ...................................... 4-5
4.3 SYSCON SCHEMATIC DIAGRAM [GR-DVX44EG/EK] ....... 4-7
4.4 SYSCON SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ...................................... 4-9
4.5 PC IF SCHEMATIC DIAGRAM [GR-DVX44EG/EK] ........... 4-11
1-9
1-9
2-1
2-15
2-16
4.6 PC IF SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] .................................... 4-13
4.7 DVMAIN SCHEMATIC DIAGRAM [GR-DVX44EG/EK] ...... 4-15
4.8 DVMAIN SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] .................................... 4-17
4.9 SERVO SCHEMATIC DIAGRAM ........................................ 4-19
4.10 PRE/REC SCHEMATIC DIAGRAM ................................. 4-21
4.11 V OUT SCHEMATIC DIAGRAM [GR-DVX44EG/EK] ....... 4-23
4.12 V OUT SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ................................. 4-25
4.13 CAM DSP SCHEMATIC DIAGRAM [GR-DVX44EG/EK] . 4-27
4.14 CAM DSP SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ................................. 4-29
4.15 ANA IN SCHEMATIC DIAGRAM
[THIS SCHEMATIC DIAGRAM IS NOT USED] ............... 4-31
4.16 TG/V.DRV SCHEMATIC DIAGRAM ................................. 4-33
4.17 REG SCHEMATIC DIAGRAM .......................................... 4-35
4.18 STO SENS SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ................................. 4-37
4.19 VF MAIN SCHEMATIC DIAGRAM ................................... 4-39
4.20 DSC SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ................................. 4-41
4.21
MP3 SCHEMATIC DIAGRAM [GR-DVX77EG/EK, GR-DVX88EG] .
4.22 USB DRV SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ................................. 4-45
4.23 W/B SCHEMATIC DIAGRAM ........................................... 4-47
4.24 CCD SCHEMATIC DIAGRAM .......................................... 4-48
4.25 MDA SCHEMATIC DIAGRAM.......................................... 4-49
4.26 IR TALLY SCHEMATIC DIAGRAM ................................... 4-51
4.27 OP DRIVER SCHEMATIC DIAGRAM .............................. 4-53
4.28 MONITOR SCHEMATIC DIAGRAM................................. 4-55
4.29 JUNCTION SCHEMATIC DIAGRAM ............................... 4-57
4.30 STROBE SCHEMATIC DIAGRAM
[GR-DVX77EG/EK, GR-DVX88EG] ................................. 4-59
4.31 AUDIO AD/DA SCHEMATIC DIAGRAM .......................... 4-61
4.32 MAIN AUDIO SCHEMATIC DIAGRAM ............................ 4-63
4.33 A/HP SEL. SCHEMATIC DIAGRAM ................................ 4-65
4.34 JACK SCHEMATIC DIAGRAM ........................................ 4-67
4.35 WB SENS, CAMERA OPE. UNIT, DECK OPE. ASSY
AND SUB OPE. UNIT SCHEMATIC DIAGRAMS ............ 4-69
4.36 MAIN CIRCUIT BOARD [GR-DVX44EG/EK] ................... 4-71
4.37
MAIN CIRCUIT BOARD [GR-DVX77EG/EK, GR-DVX88EG] .
4.38 MDA CIRCUIT BOARD.................................................... 4-83
4.39 CCD AND JUNCTION CIRCUIT BOARDS...................... 4-85
4.40 MONITOR CIRCUIT BOARD........................................... 4-87
4.41 AUDIO CIRCUIT BOARD ................................................ 4-89
4.42 STROBE, W/B AND JACK CIRCUIT BOARDS ............... 4-91
4.43 VOLTAGE CHARTS ......................................................... 4-93
4.44 POWER SYSTEM BLOCK DIAGRAM............................. 4-97
4.45 VIDEO SYSTEM BLOCK DIAGRAM ............................... 4-99
5. PARTS LIST
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ............... 5-1
5.2 FINAL ASSEMBLY <M2> .................................................... 5-2
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
MDA BOARD ASSEMBLY <02> .............................................. 5-19
CCD BOARD ASSEMBLY <03> .............................................. 5-20
MONITOR BOARD ASSEMBLY <04> ..................................... 5-20
JUNCTION BOARD ASSEMBLY <06> ................................... 5-21
STROBE BOARD ASSEMBLY(C,D,E) ..................................... 5-21
AUDIO BOARD ASSEMBLY <08> .......................................... 5-22
JACK BOARD ASSEMBLY <09>............................................. 5-24
W/B BOARD ASSEMBLY <11> ............................................... 5-24
4-43
4-77
The following table lists the differing points between Models GR-DVX44EG/EK, GR-DVX77EG/EK and GR-DVX88EG in this series.
GR-DVX44EG GR-DVX44EK GR-DVX77EG GR-DVX77EK GR-DVX88EG
VIDEO FLASH
DSC FLASH MEMORY NOT USED USED
DIGITAL SOUND RECODING
DV INPUT NOT USED USED
HEAD PHONE OUTPUT NOT USED USED
MEMORY CARD NOT USED USED (8 MB)
JACK BOX CU-V505 CU-V506
USB CABLE
USB TERMINAL
PC CONNECTION CABLE
JLIP/EDIT TERMINAL
NOT USED USED
USED NOT USED
Page 3
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.
Precautions during Servicing
•
1. Locations requiring special caution are denoted by labels and inscriptions 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 service 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.
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 transformer primary lead wires are performed using crimp type connectors, 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).
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.1
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.
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 compliance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the cathode 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.
Fig.4
(3) Align the lengths of the wires to be connected. Insert the
wires fully into the connector.
Metal sleeve
Connector
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.
1
.2
5
2
.0
5
.5
Fig.6
(5) Check the four points noted in Fig.7.
Not easily pulled free
Wire insulation recessed
more than 4 mm
Fig.7
Crimping tool
Crimped at approx. center
of metal sleeve
Conductors extended
I
S40888-01
Page 4
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 externally 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 accessible 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’) between soldered terminals, and between terminals and surrounding metallic parts. See table 1
below.
Fig. 8
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.
Externally
exposed
accessible part
Fig. 9
Z
V
ab
A
c
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
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
Page 5
Page 6
SECTION 1
DISASSEMBLY
1.1 BEFORE ASSEMBLY AND DISASSEMBLY
1.1.1 Precautions
1. Be sure to remove the power supply unit prior to mounting and soldering of parts.
2. When removing a component part that needs to disconnect the connector and to remove the screw for removing 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 insulation.
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 0.078N
•
m(0.8kgf•cm).
1.1.2 Assembly and disassembly
STEP
No.
1
2
3
(1) (2) (3) (4) (5)
PART
DECK OPE ASSY Fig.1-3-1 2(S1), (L1)—
MIC UNIT 2(S2),2(L2) NOTE2
FRONT COVER Fig.1-3-2 COVER(DV),(S3a),3(S3b) NOTE3a
ASSY 2(S3c),(S3d),STUD(HOOK) NOTE3b
Fig.No.
POINT NOTE
聽CN1a
聽CN2a
(L3)
聽CN3a
(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 1a: Disconnect the connector 1a.
• SD1 : Unsolder at the point SD1.
(5) Precautions on disassembly/assembly.
1.1.4 Disconnection of Connectors (Wires)
Connector
Pull both ends of the connector in the arrow direction, remove the lock and disconnect the flat wire.
Flat wire
Connector
Fig. 1-1-1 Connector 1
Extend the locks in the direction of the arrow for unlocking
and then pull out the wire. After removing the wire, immediately restore the locks to their original positions because
the locks are apt to come off the connector.
Flat wire
Connector
Fig. 1-1-2 Connector 2
B-B connector
Pull the board by both the sides in the direction of the arrow for disconnecting the B-B connector.
Connector
Connector
Fig. 1-1-3 Connector 3
1.1.3 Destination of connectors
Note:
Three kinds of double-arrows in connection tables respectively show kinds of connector/wires.
↔ : Wire
⇔ : Flat wire (FPC, FFC)
: Board to Board connector
[Example]
CONN.
No.
a DECK OPE ASSY - ⇔ AUDIO CN803 6
1
a AUDIO CN804 ⇔ MIC UNIT - 4
2
CONNECTOR
Connector
Pin No.
Fig. 1-1-4 Connector 4
1-1
Page 7
1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT
1.2.1 Tools required for adjustments
1
Torque Driver
YTU94088
2
Bit
YTU94088-003
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND BOARD ASSEMBLY
1.3.1 Disassembly flow chart
This flowchart indicates the disassembly step for the cabinet parts and board assembly in order to gain access to
item(s) to be serviced. When reassembling, perform the
step(s) in reverse order.
3
5
Tweezers
P-895
Cleaning Cloth
KSMM-01
Chip IC Replacement Jig
4
PTS40844-2
Table 1-2-1
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.
1
2
3
4
5
6
7
8
9
DECK OPE ASSY
MIC UNIT
FRONT COVER ASSY
UPPER CASE ASSY
(Inc.MONITOR ASSY)
MONITOR ASSY
LOWER CASE ASSY
(Inc.OP BLOCK ASSY
/STROBE ASSY/E. VF UNIT
/AUDIO BOARD ASSY)
OP BLOCK ASSY
STROBE ASSY
E.VF ASSY
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.
0
!
@
#
AUDIO BOARD ASSY
MDA BOARD ASSY
MAIN BOARD ASSY
MECHANISM ASSY
Table 1-3-1
1-2
Page 8
1.3.2 Disassembly method
STEP
No.
1
2
3
4
5
6
7
8
9
0
!
@
#
PART
DECK OPE ASSY Fig.1-3-1 2(S1), (L1) —
MIC UNIT 2(S2), 2(L2) NOTE2
FRONT COVER Fig.1-3-2 COVER(DV), (S3a), 3(S3b) NOTE3a
ASSY 2(S3c), (S3d), STUD(HOOK) NOTE3b
UPPER CASE ASSY
(Inc.MONITOR (S4b), (S4c), (S4d), 2(S4e) NOTE4b
ASSY) 聽CN 4a, 4b, 4c, 4d NOTE4c
MONITOR ASSY Fig.1-3-4 (S5a),(S5b) NOTE5
LOWER CASE ASSY
Inc.OP BLOCK ASSY
(
/STROBE ASSY NOTE6c
/E. VF ASSY
/AUDIO BOARD
ASSY)
OP BLOCK ASSY Fig.1-3-6 2(S7),2(L7) NOTE7a
STROBE ASSY Fig.1-3-7 (S8),
E.VF ASSY Fig.1-3-8 聽CN 9a, (9b) NOTE9a
AUDIO BOARD ASSY
MDA BOARD ASSY
MAIN BOARD ASSY
MECHANISM ASSY
Fig.No.
聽CN 1a
聽CN 2a
(L3)
聽CN 3a
Fig.1-3-3 (S4a), 2(L4),
Fig.1-3-5 聽CN 6a, 6b,6c, 6d, 6e NOTE6a
(S6a), 4(S6b) NOTE6b
(S9), 2(L9) NOTE9b
Fig.1-3-9 SPACER,(S0a),3(S0b),(L0a) NOTE0a
(L0b),BRACKET(TOP) NOTE0b
Fig.1-3-10 聽CN !a, !b, !c, (S!) NOTE!a
聽CN !d, !e NOTE!b
(S@a), (L@), SHIELD PLATE NOTE@
聽CN @a, @b, (S@b)
(S#a), 2(S#b), 2(L#) —
BRACKET(MECHA)
POINT NOTE
LOCK(MONITOR)
GR-DVX77EG/EK,DVX88EG
Table 1-3-2
Remove the parts marked in .
Note:
CONN.
No.
a DECK OPE ASSY - ⇔ AUDIO CN803 6
1
a AUDIO CN804 ←→ MIC UNIT - 4
2
a JACK CN901 ⇔ MAIN CN103 18
3
a MDA CN207 ⇔ SUB OPE ASSY - 7
4
b MAIN CN104 ←→ W/B - 3
4
c MAIN CN106 ⇔ MONITOR CN761 45/39
4
d MAIN CN112 ⇔ J.BOX/MENU - 16
4
a MAIN CN101 AUDIO CN801 80
6
b MAIN CN107 ⇔ CCD - 20
6
c MAIN CN109 ⇔ STROBE - 12
6
d MDA CN205 ⇔ OP BLOCK ASSY - 24
6
e MAIN CN208 ⇔ JUNCTION CN601 20
6
a AUDIO CN805 ⇔ E. VF ASSY CN1 16
9
b AUDIO CN803 ⇔ FPC - 6
9
a MDA CN202 ⇔ DRUM MOTOR - 11
!
b MDA CN201 ⇔ LOADING MOTOR - 6
!
c MDA CN203 ⇔ CAPSTAN MOTOR - 18
!
d MAIN CN102 MDA CN206 80
!
e MDA CN204 ⇔ SENSOR - 15
!
CONNECTOR
@a MAIN CN110 ⇔ HEAD - 8
@b MAIN CN111 ⇔ ROTARY ENCODER - 6
Table 1-3-3
NOTE4a
NOTE7b
NOTE7c
NOTE8
NOTE9c
NOTE9d
NOTE!c
Pin No.
NOTE 2:
NOTE 3a:
NOTE 3b:
NOTE 4a:
NOTE 4b:
NOTE 4c:
NOTE 5:
NOTE 6a:
NOTE 6b:
NOTE 6c:
NOTE 7a:
NOTE 7b:
NOTE 7c:
NOTE 8:
NOTE 9a:
NOTE 9b:
NOTE 9c:
NOTE 9d:
NOTE 0a:
NOTE 0b:
NOTE !a:
NOTE !b:
NOTE !c, @:
Beware of electrical shock due to the capacitor during work.
(GR-DVX77EG/EK and GR-DVX88EG)
When disassembling the Front Cover Assembly, remove
the screws, pull out the studs and free the grip belt.
When attaching the assembly, make sure that the strobe
block fits properly into the frame.
(GR-DVX77EG/EK and GR-DVX88EG)
Remove the Upper Case Assembly before removing the
Monitor Assembly 5.
Take care not to damage the parts (battery terminals).
Take care not to damage the parts (spring).
Refer to Fig. 1-4-1 for the disassembly method.
Remove the board assemblies (Main/MDA) and Mechanism Assembly together.
When removing, take care not to disconnect the wire
or damage any of the parts.
When attaching, be careful of the board attaching position.
Remove the OP Block Assembly together with the
Strobe Assembly. Beware of electrical shock due to the
capacitor during work.
(GR-DVX77EG/EK and GR-DVX88EG)
When removing, take care not to disconnect the wire
or damage any of the parts.
Refer to Fig. 1-5-1 for the disassembly method.
Beware of electrical shock due to the capacitor during work.
(GR-DVX77EG/EK and GR-DVX88EG)
When removing, be careful with the FPC (for the Deck
Operation Assembly) attached inside the E.VF Assembly.
Remove the FPC by unplugging it from the connector
and then taking the FPC out together with the E. VF or
by peeling it carefully so that the double-sided adhesive
can be reused later.
When removing or attaching, take care not to damage
any parts.
Particularly, when attaching the switch, always pull out
the E.VF Assembly to avoid it from damaging the switch.
When attaching, be careful with the wire treatment.
Refer to Fig. 1-6-1 for the disassembly method.
When attaching or removing, take care not to damage
any parts.
Attach the slide switch at the position of the DSC
switch (VIDEO side).
(GR-DVX77EG/EK and GR-DVX88EG)
When attaching, take care with the wire treatment.
This note does not apply when the E.VF Assembly and
FPC have been removed together as shown in Fig. 1-3-
8.
When unplugging the connector !d, be careful with the
handling of the FPC connected to it.
Connector !e is located inside the circuit board, so it
should be the last item to be removed.
When attaching, pay heed to the FPC treatment.
Mount the FPC so that it is caught between the Mechanism Assembly and the Main Board Assembly.
1-3
Page 9
2
(L )
2
3
2
(S )
4
2
(S )
CN a
(L )
1
1
(S )
1
1
2
1
1
(S )
4
CN b
4
CN c
4
14
4
(S c)
NOTE
CN
4
(L )
NOTE c
LOCK
(MONITOR)
12
4
(S a)
15
4
(S d)
4
2
a
2
4
CN a
13
4
(S b)
NOTE b
4
4
CN d
5
Fig. 1-3-1
3
NOTE b
17
(S e)
16
4
(S e)
Fig. 1-3-3
: 0.118N·m (1.2kgf·cm)
4
4
NOTE a
: 0.098N·m (1.0kgf·cm)
1-4
3
NOTE a
STUD
(HOOK)
NOTE b
GRIP BELT
5
3
(S a)
3
3
HOOK
11
(S d)
3
(L )
7
3
(S b)
6
3
(S b)
3
8
3
(S b)
COVER
(DV)
3
a
CN
Fig. 1-3-2
7
3
(S b)
11
3
(S d)
8
3
(S b)
9
3
(S c)
10
3
(S c)
Page 10
18
6
(S b)
23
6
(S b)
23
6
(S b)
24
6
(S b)
21
6
NOTE a,b
6
(S b)
24
6
(S a)
20
6
(S b)
22
6
NOTE c
6
CN a
6
CN c
6
CN b
6
CN e
6
CN d
6
TAPE
5
(S a)
4
: 0.198N·m (2.0kgf·cm)
19
(S b)
Fig. 1-3-4
NOTE
5
5
5
Fig. 1-3-5
1-5
Page 11
: 0.147N·m (1.5kgf·cm)
(L )
25
7
(S )
7
26
7
(S )
7
NOTE a
8
7
NOTE b
7
7
NOTE c
Fig. 1-3-6
9
NOTE b
SWITCH
9
NOTE b
27
8
(S )
9
(L )
7
Fig. 1-3-7
NOTE
8
8
9
NOTE
9
CN a
a
: 0.098N·m (1.0kgf·cm)
9
(L )
NOTE c
9
NOTE a
CN803(AUDIO)
(S )
9
Fig. 1-3-8
9
NOTE d
9
28
9
<TOP VIEW>
9
NOTE b
FPC
or
9
CN b
1-6
Page 12
10
(L a)
10
(L b)
BRACKET
(TOP)
29
10
(S a)
NOTE b
10
: 0.098N·m (1.0kgf·cm)
11 12
NOTE e,
NOTE
Fig. 1-3-9
13
10
SWITCH
10
a
BRACKET
(MECHA)
37
13
(S b)
31
10
(S b)
12
CN
b
32
10
(S b)
SPACER
30
10
(S b)
NOTE b
11
CN
11
CN
NOTE c
CN
a
11
11
11
11
(S )
b
e
33
11
CN
(S a)
11
c
13
(L )
36
13
34
12
(S a)
SHIELD
PLATE
CN
38
13
(S b)
12
(L )
11
d
Fig. 1-3-10
NOTE a
11
NOTE a
11
12
CN
35
12
(S b)
12
a
CN
11
d
1-7
Page 13
1.4 DISASSEMBLY OF 5 MONITOR ASSEMBLY
1.4.1 5 Monitor assembly/Hinge assembly
1. Remove the four screws (1-4). While opening the monitor cover assembly as shown by the arrow, release the
two hooks (L5a, L5b) from engagement and remove
the monitor cover assembly.
2. Remove the parts out of the monitor case and unlock
the connector CN5a. While raising the hinge assembly upwards, get the two hooks (L5c, L5d) disengaged
and disconnect the FPC by pulling it out. Then, remove
the hinge assembly.
Note
a:
When removing the parts out of the monitor case
5
assembly, be very careful not to damage the FPC
and parts.
3. Disconnect FPC from the connector CN5b and then remove the MONITOR board assembly and backlight.
b:
Note
Remove the MONITOR board assembly and
5
backlight together unless it is needed to separate
them from each other for part replacement, etc.,
because the two are soldered to each other.
4. Remove the LCD module.
1.4.2 Hinge assembly
1. Remove the two screws (5, 6). While releasing the two
hooks (L5f, L5g) from engagement, remove the hinge
cover (U).
Note
c:
Be careful not to lose any part during the above-
5
mentioned process.
2. Draw the FPC assembly out of the hinge cover (L) and
then remove the FPC assembly from the hinge assembly.
d:
Note
When reassembling, wind the FPC assembly
5
around the hinge assembly by three turns and a
half.
Be careful not to break the FPC wire during the
work.
5
NOTE d
FPC ASSY
HINGE
ASSY
5
(L g)
NOTE a
(L c)
HINGE
ASSY
5
5
(S f)
(L f)
5
HINGE
COVER(U)
5
5
6
5
(S f)
NOTE c
MAGNET
FPC ASSY
NOTE
HINGE
COVER(L)
5
5
(L d)
MONITOR
COVER ASSY
5
(L a)
1
5
(S c)
5
d
2
5
(S c)
5
NOTE b
(L b)
CN b
5
CN a
5
5
4
5
(S e)
3
5
(S d)
MONITOR
BOARD
ASSY
5
(L e)
BACK
LIGHT
LCD
MODULE
1-8
NOTE
INSIDE
5
c
MARING
Fig. 1-4-1
5
NOTE a
MONITOR CASE
: 0.098N·m (1.0kgf·cm)
: 0.069N·m (0.7kgf·cm)
Page 14
1.5 DISASSEMBLY OF 7 OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY
1.5.1 Precautions
1. Carefully handle the CCD image sensor, optical LPF,
lens, etc. during the disassembly work. Pay the most
careful attention to the surface of those parts not to get
it soiled, scratched or dusty. If some of those surfaces
gets soiled with fingerprints, etc., wipe it out with silicone
paper, clean chamois, cleaning cloth or the like.
2. The new CCD image sensor is occasionally shipped from
the factory as a protection seal is applied onto its transparent glass. If so, leave the protection seal as it is and
remove it just before installing the CCD image sensor in
the OP block assembly.
1.5.2 How to remove OP block assembly and CCD
board assembly
1. Unsolder at the fourteen points (SD1) and remove the
CCD board assembly.
2. Remove the two screws (1, 2) and then remove the CCD
base assembly.
Note
a:
Carefully remove the CCD base assembly, be-
7
cause the space rubber and optical LPF may be
removed together with the CCD image sensor.
Note7b:
When replacing the CCD image sensor, don’t replace it individually but replace the CCD base assembly in whole with a new one.
1.5.3 How to install OP block assembly and CCD board
assembly
1. Install the optical LPF with the space rubber fitted to its
CCD side in the OP block assembly.
2. Paying heed to the space rubber not to get it to come
off the setting position, install the CCD base assembly
in place and fasten it together with the space rubber with
the two screws (1, 2).
3. Set the CCD board assembly in the CCD base assem-
bly, and fasten it by soldering at the fourteen points
(SD1).
1.5.4 Replacement of service parts
Service parts to be supplied for the OP block assembly are
as follows.
When replacing a part, be very careful not to get the FPC
wire broken or damaged by soldering (overheating).
1. Focus motor
2. Zoom motor
3. Iris motor unit
Note
c:
When soldering the FPC wire of the focus motor
7
or zoom motor during the replacement work, be
sure to keep the tip of a soldering iron approximately 1 mm above the terminal.
Note7d:
The iris motor unit includes one FPC assembly
and two sensors.
: 0.118N·m (1.2kgf·cm)
NOTE7c,d
IRIS MOTOR UNIT
3
(b)
7
5
(c)
7
(b)
7
4
NOTE7c
FOCUS MOTOR
6
(d)
7
(d)
7
7
(d)
7
NOTE7a
OPTICAL LPF
BLUE
OP
SIDE
9
(d)
7
8
CCD
SIDE
1
(a)
7
(SD1)
2
(a)
7
CCD
NOTE7a
SPACER
CCD BOARD
ASSEMBLY
NOTE7a,b
BASE ASSEMBLY
OP BLOCK ASSEMBLY
NOTE7c
ZOOM MOTOR
Fig. 1-5-1
1-9
Page 15
1.6 DISASSEMBLY OF 9 E. VF ASSEMBLY
1.6.1 9E. VF assembly
a:
Note
Note9b:
Note9c:
1. Remove the eyecup and pull out the guide (VF).
2. Draw the frame (VF) out of the case assembly.
<Case assembly>
3. Remove the screw (1) first and then lever (VF).
4. Remove the three screws (2-4) and draw out the eye-
When disassembling the E VF assembly, remove
9
the frame (VF) from the case/cap assembly depending on the situation.
Be very careful not to get the inside of the VF
soiled or dusty during and after disassembling the
E. VF assembly.
After the screw having the loose-proof tip was
once removed from the E. VF assembly, don’t reuse it.
piece sub assembly.
<Frame (VF)>
5. Remove the screw (5) first and then LCD module/holder
(LCD).
Note
d:
Pay heed to the FFC not to damage it during the
9
removing work.
6. Get the two hooks (L9a, L9b) disengaged and then remove the holder (LCD)
Note
e:
Carefully proceed with the above-mentioned work
9
not to damage any part.
7. Disconnect the connector (CN9a) and remove the LCD
module.
Note9f:
Pay heed the parts not to damage any thing.
B/L SUB ASSY
NOTE d
9
FFC
CN a
FRAME(VF)
NOTE a
9
NOTE e
9
(L a)
9
(L b)
9
NOTE
LCD MODULE
NOTE a
9
CASE/CAP
5
9
9
f
GUIDE(VF)
2
3
1
HOLDER
(LCD)
EYE PIECE
SUB ASSY
6
CAP
7
(VF)
4
EYE CUP
1-10
: 0.069N·m (0.7kgf·cm)
: 0.098N·m (1.0kgf·cm)
Fig. 1-6-1
Page 16
1.7 EMERGENCY DISPLAY
Whenever some abnormal signal is input to the syscon CPU,
an error number (E01, as an example) is displayed on the
LCD monitor or (in the electronic view finder).
In every error status, such the message as shown below
alternately appear over and over.
• In an emergency mode, all operations except turning on/
off the POWER switch are ineffectual.
LCD
display
E01 LOADING
E02 UNLOADING
E03 TU & SUP REEL
Emergency
mode
FG
Details
In the case the encoder position is not shifted
to the next point though the loading motor has
rotated in the loading direction for 4 seconds
or more. This error is defined as [E01].
In the case the encoder position is not shifted
to the next point though the loading motor has
rotated in the unloading direction for 4 seconds
or more. This error is defined as [E02].
In the case no REEL FG is produced for 4 seconds or more in the capstan rotation mode after loading was complete, the mechanism mode
is shifted to STOP with the pinch roller set off.
This error is defined as [E03].
However, no REEL EMG is detected in the
SLOW/STILL mode.
Example (in case of the error number E01):
E01
UNIT IN
SAFEGUARD MODE
E01
REMOVE AND
REATTACH BATTERY
Possible cause
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading
end, because the encoder position is skipped during
mechanism mode shift.
3. No power is supplied to the loading MDA.
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading
end, because the encoder position is skipped during
mechanism mode shift.
1. The idler gear does not engage with the reel disk well.
2. Though the idler gear and reel disk are engaged with
each other, the tape is not wound because of overload to the mechanism.
3. No FG pulse is output from the reel sensor.
4. No power is supplied to the reel sensor.
5. Tape transport operation takes place with a cassette
having no tape inside.
6. The tape slackens and no pulse is produced until the
slack is taken up and the tape comes into the normal
status.
E04 DRUM FG
E05 –
E06 CAPSTAN FG
In the case there is no DRUM FG input in the
drum rotation mode for 4 seconds or more. This
error is defined as [E04], and the mechanism
mode is shifted to STOP with the pinch roller
set off.
–
In the case no CAPSTAN FG is produced in
the capstan rotation mode for 2 seconds or
more. This error is defined as [E06], and the
mechanism mode is shifted to STOP with the
pinch roller set off.
However, no CAPSTAN EMG is detected in the
STILL/FF/REW mode.
Table 1-7-1
1. The drum cannot be started or drum rotation is stopped
because tape transport load is too high.
1) Tape tension is extremely high.
2) The tape is damaged or soiled with grease, etc.
2. The DRUM FG signal is not received by the syscon
CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the DRUM FG pulse generator (hall ele-
ment).
3. No drum control voltage is supplied to the MDA.
4. No power is supplied to the DRUM MDA.
–
1. The CAPSTAN FG signal is not received by the syscon
CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the CAPSTAN FG pulse generator (MR
element).
2. No capstan control voltage is supplied to the MDA.
3. No power is supplied to the CAPSTAN MDA.
4. The capstan cannot be started or capstan rotation is
stopped because tape transport load is too high.
1) Tape tension is extremely high. (Mechanical lock-
ing)
2) The tape is damaged or soiled with grease, etc.
(Tape tangling occurs, etc.)
(DVC_03)
1-11
Page 17
1.8 SERVICE NOTE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19
1
2
345
Fig. 1-3-1 Fig. 1-3-2 Fig. 1-3-3 Fig. 1-3-4
I I II I IVIII
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
38
8
7 /
5
MONITOR ASSY
6
980-=~
Fig. 1-3-5
Fig. 1-3-6 Fig. 1-3-7 Fig. 1-3-8 Fig. 1-3-9 Fig. 1-3-10
I IV III III
Fig. 1-4-1
III VI
I
Symbol No.
Removing order of screw
Place to stick screw
Reference drawing
Screw tightening torque
Symbol No.
Removing order of screw
Place to stick screw
Reference drawing
Screw tightening torque
Removing order of screw
Place to stick screw
Reference drawing
Screw tightening torque
Removing order of screw
Place to stick screw
Reference drawing
Screw tightening torque
Removing order of screw
Place to stick screw
Reference drawing
Screw tightening torque
1234 56
1234 567
9
E. VF ASSY
7
OP BLOCK ASSY
Fig. 1-5-1
II VI VI
1234 56789
< NOTE >
1) : : Don’t reuse the screw, because screw lock bond was applied to them.
2) Pay careful attention to tightening torque for each screw.
I : 0.078N·m (0.8kgf·cm)
II : 0.118N·m (1.2kgf·cm)
III : 0.098N·m (1.0kgf·cm)
IV : 0.198N·m (2.0kgf·cm)
V : 0.147N·m (1.5kgf·cm)
VI : 0.069N·m (0.7kgf·cm)
Fig. 1-6-1
Table 1-8-1
1-12
Page 18
SECTION 2
MECHANISM ADJUSTMENT
2.1 PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR
2.1.1 Precautions
1. When fastening parts, pay careful attention to the tight-
ening torque of each screw. Unless otherwise specified,
tighten a screw with the torque of 0.039 N
2. Be sure to disconnect the set from the power supply be-
fore fastening and soldering parts.
3. When disconnecting/connecting wires, be careful not to
get them and their connectors damaged. (Refer to the
Section 1.)
4. When replacing parts, be very careful neither to dam-
age other parts nor to fit wrong parts by mistake.
2.1.2 Notes on procedure for disassemby/assembly
The disassembling procedure table (Table 2-4-1 on page
2-6,a part of the table is shown below for reference)shows
the procedure to disassemble/reassemble mechanism
parts.
Carefully read the following explanation before starting actual disassembling/reassembling work. The item numbers
(circled numbers)in the following explanation correspond
to those appearing under respective columns of the table.
(1) Circled numbers appearing in this column indicate the
order to remove parts. When reassembling, follow these
numbers in the reverse order. Circled numbers in this
column correspond to those appearing in drawings of
this section.
(2) This column shows part names corresponding to circled
numbers in the left column.
•
m (0.4 kgf•cm).
(3) The symbol (T or B)appearing in this column shows the
side which the objective part is mounted on.
T =the upper side, B =the lower side
(4) Symbols appearing in this column indicate drawing
numbers.
Step Part Name Fig. Point Note Remarks
(5) This column indicates parts and points such as screws,
washers,springs,and others to be removed/fitted for disassembling/reassembling the mechanism. Besides such
the parts, this column occasionally indicates working
points.
P = Spring
W = Washer
S = Screw
* = Lock (L),soldering (SD),shield,connector (CN),
etc.
Example • Remove ((W1)=Washer W1.
• **Remove the solder at (SD1)=Point SD1.
• **Disconnect
(6) Numbers in this column represent the numbers of notes
in the text.For example, “1” means “Note 1”.
(For parts that need phase adjustment after reassembling, refer to “2.6 MECHANISM ADJUSTMENTS”.)
(7) This column indicates required after-disassembling/-re-
assembling work such as phase adjustment or mechanism adjustment.
=Connector Å .
Å
NO. PART NAME FIG. POINT NOTE REMARKS
A Cassette housing assembly T Fig. 2-4-5 3(S1),(L1a)-(L1d)
2a Reel disk (SUP) assembly T Fig. 2-4-6 (W2) 2a, 2b
2b Reel disk (TU) assembly T Fig. 2-4-6 (W2) 2a, 2b
2c Reel cover assembly T Fig. 2-4-6 2(S2a),(S2b),(W2) 2d
3a Tension arm assembly T Fig. 2-4-7 (W3a) 3b
3b Release guide assembly T Fig. 2-4-7 - 3a
3c Idler arm assembly T Fig. 2-4-7 (W3b) -
3d Guide arm assembly T Fig. 2-4-7 - 3a
3e Pinch roller arm assembly T Fig. 2-4-7 (W3a) -
4a Cleaner arm assembly T Fig. 2-4-8 (L4a) 4a
4b Slant pole arm assembly T Fig. 2-4-8 (W4),(L4b),(P4a),(P4b) 4b
4c Drum assembly T Fig. 2-4-8 3(S4) -
5a Guide roller (S) assembly T Fig. 2-4-9 (P5) 5a, 5b
5b Rail assembly T Fig. 2-4-9 3(W5a), (W5b) 5c
(1) (2) (3) (4) (5) (6) (7)
1a, 1b, 1c, 1d
Adjustment
2-1
Page 19
2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT
2.2.1 Tools required for adjustments
1
3
5
7
9 10
11
13
Torque Driver
YTU94088
Tweezers
P-895
Guide Driver
YTU94148A
Slit Washer Installation Jig
YTU94121B
Extension Connector
YTU94145A
PC cable
QAM0099-002
Alignment Tape
MC-2
2
Chip IC Replacement Jig
4
6
8
Service Support System
12
14
Bit
YTU94088-003
PTS40844-2
Adjustment Driver
YTU94028
Jig Connector cable
YTU93091B
Communication cable
YTU93107A
YTU94057-53
Cleaning Cloth
KSMM-01
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. Guide Driver
To be used to turn the guide roller to adjustment of the
linarity of playback envelope.
6. Adjustment Driver
To be used for adjustment.
7. Slit Washer Installation Jig
To be used to install slit washers.
8. Jig Connector cable
Connected to CN105 of the main board and used for
electrical adjustment, etc.
9. Extension Connector
Connect this extension connector to the connector of the
Jig connector cable for extending the cable connector.
Note:
For supplying the power through the coupler by
removing the cover (for Jig), use this extension
connector double for connecting the Jig connector cable.
10. Communication cable
Connect the Communication cable between the PC cable and Jig connector cable when performing a PC adjustment.
11. PC cable
To be used to connect the VideoMovie and a personal
computer with each other when a personal computer is
used for adjustment.
12. Service Support System
To be used for adjustment with a personal computer.
13. Alignment Tape
To be used for check and adjustment of interchangeability of the mechanism.
14. Cleaning Cloth
Recommended cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens
surface.
2-2
Table 2-2-1
Page 20
2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM
ASSEMBLY
2.3.1 General statement
The mechanism should generally be disassembled/assembled in the EJECT mode (ASSEMBLY mode). (Refer to Fig.
2-3-1.)
However, when the mechanism is removed from the main
body, it is set in the STOP mode. Therefore, after the
mechanism is removed from the main body, supply 3 V DC
to the electrode on the top of the loading motor to enter
the mechanism mode into the EJECT mode compulsory.
<Mechanism assembly/Cassette housing assembly>
DC3V
<SUB CAM GEAR>
TOP VIEW BOTTOM VIEW
Fig. 2-3-2
<EJECT mode>
Fig. 2-3-3
Motor
<Back side of the mechanism assembly>
EJECT mode
Back side of deck
<C IN mode>
Fig. 2-3-4
<SHORT FF mode>
Fig. 2-3-5
<STOP mode>
Fig. 2-3-6
<REV mode>
Fig. 2-3-1
2.3.2 Explanation of mechanism mode
The mechanism mode of this model is classified into six
modes as shown in Table 2-3-1. Each mechanism mode
can be distinguished from others by the relative position
of “
” mark on the sub cam gear to the inner or outer protrusion on the main deck.
Refer to Fig. 2-3-2 to 2-3-8 below.
The EJECT mode, C IN mode and SHORT FF mode should
be recognized by the relative position of the “
” mark to
the inner protrusion, while the STOP mode, REV mode and
PLAY mode should be recognized by that to the outer protrusion.
Fig. 2-3-7
<PLAY mode>
Fig. 2-3-8
2-3
Page 21
2.3.3 Mechanism timing chart
PARTS
MAIN CAM (ø10.4)
SUB CAM (ø11)
ENCODER (ø10)
ROTARY
ENCODER
CAM SW
<SLIDE DECK>
MODE
1
2
3
C
B
A
EJECT
0
0
0
C IN
31.7
30
33
45.6
43.1
47.4
SHORT FF
49.5
46.8
51.5
74.04
70
77
129.5
122.5
134.7
SLIDE STARTSLIDE END
156.6
148.1
162.9
STOP
169.2
160
176
REV
211.5
200
220
PLAY
280.3
265
291.5
SLIDE
POLE BASE
EJECT LEVER
SUP LOADING
BRAKE
RELEASE GUIDE
SUB BRAKE (T)
PINCH ROLLER
TENSION
PAD ARM
MAIN CAM (ø10.4)
SUB CAM (ø11)
ENCODER (ø10)
2-4
47.2
44.6
49.1
52.0
49.2
54.1
Table 2-3-1
155.5
147.0
161.7
265.0
250.5
275.6
Page 22
2.4 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY
2.4.1 Follow chart
1. Configuration
Mechanism assembly
A
Cassette housing assembly
2. Procedures for disassembly
A
B
Fig. 2-4-1
Mechanism assembly
Cassette housing assembly
2a 5b
C
Main deck assemblySlide deck assembly
B
Slide deck assembly
7a 8a
7h
Fig. 2-4-2
C
Main deck assembly
11e
2-5
Page 23
3. Disassembling procedure table
NO. PART NAME FIG. POINT NOTE REMARKS
A Cassette housing assembly T Fig. 2-4-5 3(S1),(L1a)-(L1d)
2a Reel disk (SUP) assembly T Fig. 2-4-6 (W2) 2a, 2b
2b Reel disk (TU) assembly T Fig. 2-4-6 (W2) 2a, 2b
2c Reel cover assembly T Fig. 2-4-6 2(S2a),(S2b),(W2) 2d
3a Tension arm assembly T Fig. 2-4-7 (W3a) 3b
3b Release guide assembly T Fig. 2-4-7 - 3a
3c Idler arm assembly T Fig. 2-4-7 (W3b) -
3d Guide arm assembly T Fig. 2-4-7 - 3a
3e Pinch roller arm assembly T Fig. 2-4-7 (W3a) -
4a Cleaner arm assembly T Fig. 2-4-8 (L4a) 4a
4b Slant pole arm assembly T Fig. 2-4-8 (W4),(L4b),(P4a),(P4b) 4b
4c Drum assembly T Fig. 2-4-8 3(S4) -
5a Guide roller (S) assembly T Fig. 2-4-9 (P5) 5a, 5b
5b Rail assembly T Fig. 2-4-9 3(W5a), (W5b) 5c
B
Slide deck assembly / C Main deck assembly
B Slide deck assembly
7a Loading brake assembly T Fig. 2-4-11 (W7),(L7a),(P7a) 7e
7b Guide pin (S) T Fig. 2-4-11 (S7a) -
7c Pad arm assembly T Fig. 2-4-11 (W7),(L7b),(P7b) 7d Adjustment
7d Slide guide plate assembly T Fig. 2-4-11 (S7b) 7c Adjustment
7e Collar T Fig. 2-4-11 - 7a
7f Collar T Fig. 2-4-11 - 7a
7g Sub brake assembly T Fig. 2-4-11 (W7),(L7c),(P7c) 7b
7h Control plate assembly T Fig. 2-4-11 2(W7),(L7d),(P7d) 7b
C Main deck assembly
8a Tension lever assembly T Fig. 2-4-12 - 8c
8b Slide lever assembly T Fig. 2-4-12 - 8b
8c Brake control lever assembly T Fig. 2-4-12 - 8a
9a Loading guide T Fig. 2-4-13 (S9) -
9b Timing belt T Fig. 2-4-13 - 9b
9c Center gear assembly T Fig. 2-4-13 - -
9d Motor bracket assembly T Fig. 2-4-13 2(S9) 9a
9e Worm wheel T Fig. 2-4-13 (W9) - (Phase adjustment)
9f Gear holder T Fig. 2-4-13 (S9) -
10a Main cam gear T Fig. 2-4-14 (S10) 10b Phase adjustment
10b Brake control plate T Fig. 2-4-14 (L10) 10b Phase adjustment
10c Rotary encoder T Fig. 2-4-14 (S10),(W10a) 10a Phase adjustment
10d Connect gear T Fig. 2-4-14 (W10a) - (Phase adjustment)
10e Reel drive pulley assembly T Fig. 2-4-14 (W10b) -
11a Catcher (T) assembly T Fig. 2-4-15 2(S11) -
11b Capstan motor T Fig. 2-4-15 2(S11) -
11c Charge arm assembly T Fig. 2-4-15 (W11) 11
11d Sub cam gear T Fig. 2-4-15 (S11) - Phase adjustment
11e PWB holder B Fig. 2-4-15 2(S11) -
T Fig. 2-4-10 (W6),(L6a)-(L6d) 6a, 6b (Adjustment)
1a, 1b, 1c, 1d
Adjustment
2-6
Table 2-4-1
Page 24
< TOP VIEW >
5b
9e
10c
8a
9f
10d
3a
7c
2a
B
Slide deck
assembly
9d 5a 4c 4a 4b
11b 11a
7b 7a 7d 7e 9c 3c 3b 7h 2b
C
Main deck
assembly
10e
3d
9a
2c
3e
9b
8c
7f
7g
< BOTTOM VIEW >
11e
11d
11c
B
Slide deck
assembly
Fig. 2-4-3
C
Main deck
assembly
10a
10b
8b
Fig. 2-4-4
2-7
Page 25
2.4.2 Disassembly/assembly
1. A Cassette housing assembly
(L1b)
1
(S1)
A
Cassette
housing
assembly
<STOP mode>
Note 1a:
Shift the mechanism mode
from the STOP mode to the
EJECT mode.
Note 1b:
Reassemble the cassette
housing assembly to the
mechanism as the cancel
lever is moved in the direction of the arrow.
2
(S1)
Note 1b
(L1b)
(L1d)
(L1c)
Note 1c
Fig. 2-4-5
2. 2a Reel disk (SUP) assembly
2b Reel disk (TU) assembly
2c Reel cover assembly
(W2)
Note 2b
(W2)
2a
4
(S2a)
6
(S2b)
5
(S2a)
(L1a)
3
(S1)
(L1a)
Slide deck assembly
/Main deck assembly
2b
Note 2b
(W2)
<EJECT mode>
Note 1c:
When reassembling the
cassette housing to the
mechanism, make sure that
there is no deformation in
the frame or no damage to
the switches, etc.
Note 1d:
After reassembling the com-
<PLAY mode>
ponent parts, check the
mechanism operation in the
PLAY mode.
For details of checking
method, refer to “2.6.1 assembling slide deck assembly and main deck assembly”.
Note 2a:
When removing the reel disk assembly, be careful not to
break the brake pad which applies lateral pressure to the
reel disk.
Note 2b:
Be careful not to make a mistake in installing the reel disk.
The SUP reel disk and TU reel disk can be distinguished
from each other by the appearance as shown below.
Note 2a
2-8
2c
Note 2d
Note 2c
Note 2a
Fig. 2-4-6
Note 2c
Slide deck assembly
/Main deck assembly
(SUP) (TU)
Note 2c:
When reassembling the cassette housing to the mechanism,
make sure that there is no deformation in the frame or no
damage to the switches, etc.
Note 2d:
When fitting the reel cover assembly to the set, carefully
tighten the screw with the specified tightening torque of
0.069N
•
m (0.7kgf•cm).
Page 26
3. 3a
Tension arm assembly/
3c Idler arm assembly/ 3d Guide arm assembly
3e Pinch roller arm assembly
3b
Release guide assembly
(W3a)
3d
3a
Note
3a
3b
Note 3a
3c
(W3b)
(W3a)
3e
Note 3b
Note 3a:
When removing the reel cover assembly, pay heed to release guide assembly and guide arm assembly. For, the
guide arm assembly is just inserted into the slide deck assembly from the upside and it is apt to come off after the
reel cover assembly is removed.
Note 3b:
Reassemble the tension arm assembly to the mechanism
as the pad arm assembly is moved to the extent in the direction of the arrow.
4. 4a
Cleaner arm assembly/
4c Drum assembly
4c
9
(S4)
Fig. 2-4-7
4b
7
(S4)
Note 4b
Slant pole arm assembly
8
(S4)
4a
(L4a)
Note 4a
(W4)
4b
(P4b)
(P4a)
(L4b)
Note 4a:
When removing the cleaner arm assembly, it is recommended to remove the slant pole arm assembly together
with it except the case of a single unit replacement, because
the hook (L4a) is hard to disengage.
Note 4b:
How to set the coil spring (P4b).
(P4b)
4a
4b
(P4b)
Fig. 2-4-8
2-9
Page 27
5. 5aGuide roller (S) assembly/
5a
Note 5a
(W5a)
(W5b)
(W5a)
5b
5b
(P5)
Note 5b
Note 5c
(W5a)
Rail assembly
Note 5d
Note 5a:
When reassembling, insert the tip
of the guide roller with the coil
spring put on it into the hole on
the main deck. Tighten the guide
roller by about 6 turns so that the
height of the guide roller assembly is 19 mm or so as shown in
the figure.
Note 5b:
Pay careful attention to the spring not to lose it.
Note 5c:
Pay careful attention to the engagement of the rail assembly’s arm ends because they easily come off the engagement. Moreover, make sure that there is neither deformation nor damage observed in them.
Note 5d:
When removing the rail assembly, check to see if the collar
is securely set in the arm groove.
Guide roller
(s) assembly
19mm
6. B
Slide deck assembly/
(L6a)
(L6b)
(W6)
Note 6a
Fig. 2-4-9
C
Main deck assembly
BSlide deck assembly
CMain deck
assembly
(L6c)
(L6d)
Note 6b
Note 6a:
When removing the slide deck assembly, pay heed to the
three components of the following because they are apt to
come off after the slide deck assembly is removed.
8a
Tension lever assembly/
8c
Brake control lever assembly
For reassembling those components, refer to Fig. 2-4-12.
Note 6b:
When reassembling the slide deck assembly to the main
deck assembly, combine them with each other by the side
grooves and then slide the slide deck assembly by 1 mm
or so.
8b
Slide lever assembly
1mm
2-10
Fig. 2-4-10
Page 28
7. 7a Loading brake assembly/ 7b Guide pin (S)
7c
Pad arm assembly/
7e Collar/ 7f Collar/ 7g Sub brake assembly
7h Control plate assembly
(P7b)
10
(S7a)
7b
(W7)
7d
Slide guide plate assembly
Note 7d
7c
11
Note 7c
(S7b)
7d
(W7)
7g
Note 7a:
Don’t remove these parts unreasonably. If they are removed
for some reason, be very careful not to lose them.
Note 7b:
When reinstalling the sub brake assembly, set the control
plate assembly so that its hook is set in the
sub brake assembly.
Note 7b
part of the
(P7a)
7a
Note 7e
(P7d)
(L7b)
(W7)
(W7)
7e
7f
Note
7a
(W7)
(P7c)
Note 7b
7h
(L7a)
(L7d)
Fig. 2-4-11
8. 8a Tension lever assembly/ 8b Slide lever assembly
8c Brake control lever assembly
Note 8c
8a
(L7c)
8c
8b
Note 8a
Note
8b
Note 7c:
Since the slide guide plate assembly controls the slide deck
assembly so that it exactly slides the main deck assembly, it
must exactly be assembled in the PLAY mode. Therefore,
temporarily fix the slide guide plate assembly in this stage.
For details of reassembling procedure, refer to “2.6.1
Assembling slide deck assembly and main deck assembly” .
Note 7d:
The pad arm assembly controls the tension level of the
tension arm assembly. For adjustment of the tension arm
assembly, refer to “2.6.2 Locating tension pole”.
Note 7e:
When reinstalling the loading brake assembly, slightly lift
the slide deck assembly upwards because the lower part
of the loading brake assembly sticks out of the slide deck
assembly.
Note 8a, 8b, 8c:
For refitting the respective parts, refer to the following figures
8a
Tension lever assembly
8b
Slide lever assembly
Fig. 2-4-12
8c Brake control lever
assembly
2-11
Page 29
9. 9a Loading guide/ 9b Timing belt
9c Center gear assembly/ 9d Motor bracket assembly
9e Worm wheel/ 9f Gear holder
9b
Note 9b
Note 9a
9d
9c
14
(S9)
13
(S9)
Note 9a:
Carefully handle the DEW sensor. (Don’t touch the sensor
surface in particular.)
Note 9b:
When engaging the timing belt, make sure that it securely
engages with the gears of both the center gear assembly and
reel drive pulley assembly.
15
(S9)
(W9)
9e
9f
12
(S9)
9a
Fig. 2-4-13
10. 10a Main cam gear/ 10b Brake control plate
10c Rotary encoder/ 10d Connect gear
10e Reel drive pulley assembly
17
(S10)
(W10a)
10c
16
(W10a)
10d
(S10)
10a
(W10b)
10e
Note 10a:
When removing/refitting parts, pay careful attention to the
flexible board and so on not to damage them.
Note 10b:
When reinstalling the main cam gear and the brake control plate,
first fit them together so that the protrusion on the brake control
plate is set in the slot on the main cam gear as shown below,
next install the two together to the main deck assembly.
10b
Note 10a
2-12
Note
10b
(L10)
Fig. 2-4-14
10a
10b
Note 10b
Page 30
11. 11a Catcher (T) assembly/ 11b Capstan motor
11c Charge arm assembly/ 11d Sub cam gear
11e PWB holder
18
(S11)
19
(S11)
21
(S11)
11c
(W11)
Note 11
20
(S11)
22
(S11)
11d
11b
11a
Note 11:
The following figure shows how to put the charge arm assembly and sub cam gear assembly together.
11d
11c
11e
24
(S11)
Fig. 2-4-15
23
(S11)
2-13
Page 31
2.4.3 List of procedures for disassembly
Cassette housing assembly
A
(L1b)
1
(S1)
(W3b)
3c
(W10b)
5b
(W5a)
(W5a)
5a
(P5)
(W5b)
(W5a)
14
(S9)
13
(S9)
9d
(L1d)
(W6)
7d
11
(S7b)
4
(S2a)
2
(S1)
(P7a)
7b
7a
2a
8b
AA
10b
(S7a)
(W2)
(S2b)
(L1c)
10a
10
(W7)
6
16
(S10)
(P7b)
7c
(P7d)
5
(S2a)
(W7)
AA
(S9)
(W3a)
(W7)
7h
15
(W2)
9f
AA
(W7)
2b
3a
3
(S1)
(W10a)
10c
8a
BB
(L1a)
(S10)
AA
(W9)
AA
BB
7e
7f
BSlide deck
assembly
9c
7
9e
(W10a)
AA
3b
BB
9b
(S11)
10d
21
(S11)
CMain deck
assembly
3d
(W7)
7g
10e
19
(S11)
20
(P7c)
BB
18
(S11)
11a
11b
11d
AA
AA
(P4b)
12
(S9)
8c
9
(S4)
9a
22
(S11)
7
(S4)
4a
(P4a)
3e
(W11)
8
(S4)
4c
(W4)
4b
(W3a)
11c
AA
(W2)
2c
Note 3b
Note)
Classification Part No. Symbol in drawing
Grease KYODO-SH-P AA
Oil YTU94027 BB
2-14
Fig. 2-4-16
24
(S11)
11e
23
(S11)
Page 32
2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE
<Connect gear> (Note 2)
<Rotary encoder>
Set the “■” of the rotary
part at the tapped hole
as shown in the figure.
Set the connect gear so
that its locating hole meets
the hole on the main deck
assembly.
<Worm wheel> (Note 2)
Set the worm wheel so
that its locating hole
meets the hole on the
main deck assembly.
<Main cam gear
/Brake control plate>
After fitting the main cam
gear and brake control plat
together,set them together
so that their locating holes
meet the hole on the main
deck assembly.
<Connect gear 2> (Note 2)
Set the connect gear 2 so
that its locating hole meets
the hole on the main deck
assembly.
Note 1
<Sub cam gear>
Set the sub cam gear
so that its locating hole
meets the hole on the
main deck assembly.
This state represents
that the mechanism is
in the EJECT mode,
which is the “mechanism
assembly mode”.
Note 1:
Since the connect gear 2 is tightly fixed to the main deck
by caulking, adjust its phase with the connect gear and
sub cam gear.
Note 2:
The part that needs phase adjustment by the hole on the main
deck assembly must exactly be set as the specified phase.
There is a fear that some part is installed in a wrong phase
because assembling of the mechanism is automated. If so,
set every part in the correct phase whenever the mechanism
is reassembled.
Fig. 2-5-1
2-15
Page 33
2.6 MECHANISM ADJUSTMENTS
2.6.1 Assembling slide deck assembly and main deck assembly
CC
2
3
œ
Œ
D
A
3
3
3
3
BB
1
Assembling procedure
1. Loosen the screw A.
2. Set the mechanism in the PLAY mode.
(Refer to “2.3.2 Explanation of mechanism mode”.)
3. Press the end face B of the slide deck assembly (reel
disk side) and the end face C of the main deck assembly (drum assembly side) with uniform force so that the
two assemblies are tightly pressed to each other. Furthermore, press the part D and tighten the screw A.
Note :
2-16
Tightening torque for screw A: 0.069 N·m (0.7 kgf·cm)
Fig. 2-6-1
Page 34
2.6.2 Locating tension pole
b
a
c
<PLAY mode>
Locating procedure
1. Enter the mechanism assembly into the PLAY mode.
(Refer to “2.3.2 Explanation of mechanism mode”.)
2. When the “ ” part is positioned down, make sure
that the part “a” of the tension arm assembly is located
within the range of “b”.
3. If the part “a” is out of the range, turn the pin “c” to
adjust the position.
Fig. 2-6-2
2-17
Page 35
2.7 SERVICE NOTE
Use the following chart to manage mechanism parts that are removed for disassembling the mechanism.
1
Cassette housing assembly
A
S1×3
2
2a
Reel disk (SUP) assembly
2c
Reel cover assembly
W2×1
2b
Reel disk (TU) assembly
W2×1
3a 3b 3c 3d 3e
Tension arm
3
assembly
Release guide
assembly
W3a×1
Cleaner arm assembly
4a
4b
S2a×2
W3b×1
Slant pole arm assembly
S2b×1
Idler arm
assembly
W2×1
Guide arm
assembly
4c
Drum assembly
4
Guide roller (S) assembly
5a
W4×1 P4a×1 P4b×1
Rail assembly
5b
S4×3
5
Pinch roller arm
assembly
W3a×1
2-18
P5×1
W5a×3 W5b×1
Table 2-7-1a
Page 36
6
Slide deck assembly
B
7
Loading
7a 7b
brake
assembly
Guide pin
(S)
7c
Pad arm
assembly
7d
Slide guide
plate
assembly
W7×1 P7a×1
7e
Collar
W6×1
8
9
Main deck assembly
C
Loading
guide
Timing belt
9b9a
8a
Tension lever
assembly
Center gear
9c 9d 9e 9f
assembly
S7a×1
7f
Collar
Slide lever
8b
assembly
Motor bracket
assembly
W7×1 P7b×1
7g
Sub brake
assembly
W7×1 P7c×1
8c
Worm wheel
S7b×1
Control
7h
plate
assembly
W7×2 P7d×1
Brake control
lever assembly
Gear
holder
10
11
S9×1
S10×1
S11×2
Main cam
gear
Catcher (T)
assembly
Brake control
10b10a
plate
Capstan motor
11b11a
S11×2
S9×2
Rotary encoder
S10×1 W10a×1
Charge arm
11c
assembly
W11×1
Table 2-7-1b
W9×1
Connect gear
10d10c
W10a×1
Sub cam gear
11d 11e
S11×1
S11×2
Reel drive
10e
pulley
assembly
W10b×1
PWB holder
S9×1
2-19
Page 37
2.8 JIG CONNECTOR CABLE CONNECTION
Remove one screw (1) first and the cover (JIG) next.
CN105
COVER
(JIG)
1
GUIDE ROLLER (SUP) ASSY
SHEET
GUIDE ROLLER
(TU) ASSY
MAIN
CN105
DJIG_SCK
CVF_G
JLIP_RX
GND
PB_CLK
MAIN_VCO
FS_PLL
IF_TX
DJIG_MOD
VPPC
EXTENSION
CONNECTOR
For supplying the power through the coupler by
NOTE)
removing the cover (for jig), use this extension
connector double for connecting the jig connector
cable.
JIG CONNECTOR
CABLE
Fig. 2-8-1 Jig connector cable connection
JIG BOARD
(PIN NO.)
20 1AL_3VSYS
10
19DJIG_SPT
9
18MON_G
8
17JLIP_TX
7
16HID1
6
15ENV_OUT
5
14ATFI
4
13I_MTR
3
12CJIG_RST
2
11REG_3V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
AL_3VSYS
DJIG_SPT
MON_G
JLIP_TX
HID1
ENV_OUT
ATFI
I_MTR
CJIG_RST
REG_3V
DJIG_SCK
CVF_G
JLIP_RX
GND
PB_CLK
MAIN_VCO
FS_PLL
IF_TX
DJIG_MOD
VPPC
2-20
Fig. 2-8-2 Jig connector cable schematic diagram
Page 38
SECTION 3
Torque Driver
YTU94088
1
Bit
YTU94088-003
2
Service Support System
YTU94057-53
11
INF Adjustment Lens
YTU92001B
12
INF Adjustment Lens Holder
YTU94087
13
Camera Stand
YTU93079
14
Light box Assembly
YTU93096A
15
Gray Scale Chart
YTU94133A
16
Color Bar Chart
YTU94133C
Extension connector
YTU94145A
8
PC Cable
QAM0099-002
9
Alignment Tape
MC-2
10
3
Chip IC Replacement Jig
PTS40844-2
4
Tweezers
P-895
Jig Connector Cable
YTU93091B
5
6
Communication Cable
YTU93107A
7
ELECTRICAL ADJUSTMENT
3.1 PRECAUTION
1. Precaution
Both the camera and deck sections of this model needs a
personal computer for adjustment except simple adjustment
with potentiometers. If some of the following parts is replaced
for repair or other reason, the repaired set must be adjusted
with a personal computer.
• OP block
2
• E
PROM (IC1003 of MAIN board)
• E. VF
• MONITOR
2
• E
PROM (IC7603 of MONITOR board)
In the event of malfunction with electrical circuits, troubleshooting with the aid of proper test instruments most be done
first, and then commence necessary repair, replacement and
adjustment, etc.
1. In case of wiring to chip test points for measurement,
use IC clips, etc. to avoid any stress.
2. Since connectors are fragile, carefully handle them in disconnecting and connecting.
2. Required test equipment
1. Color TV monitor.
2. Oscilloscope (dual-trace type, observable 100 MHz or
higher frequency)
Note :
It is recommended to use one observable 300
MHz or higher frequency.
3. Digital voltmeter
4. Frequency counter (with threshold level adjuster)
5. Personal computer
3. Tools required for adjustments
Table 3-1-1
3-1
Page 39
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. Jig connector cable
Connected to CN105 of the main board and used for
electrical adjustment, etc.
6. Extension connector
Connect this extension connector to the connector of
the jig connector cable for extending the cable connector.
Note:
For supplying the power through the coupler by
removing the cover (for jig), use this extension
connector double for connecting the jig connector cable.
7. Communication Cable
Connect the Communication cable between the PC
cable and Jig connector cable when performing a PC
adjustment.
8. PC cable
To be used to connect the VideoMovie and a personal
computer with each other when a personal computer
is used for adjustment.
9. Service support system
To be used for adjustment with a personal computer.
10. Alignment tape
To be used for check and adjustment of interchangeability of the mechanism.
11. INF adjustment lens
To be used for adjustment of the camera system.
12. INF adjustment lens holder
To be used together with the camera stand for operating the VideoMovie in the stripped-down
condition such as the status without the exterior parts
or for using commodities that are not yet conformable
to the interchangeable ring.
13. Camera stand
To be used together with the INF adjustment lens
holder.
14. Light box assembly
To be used for adjustment of the camera system.
15. Gray scale chart (for Light box assembly)
To be used for adjustment of the camera system.
16. Color bar chart (for Light box assembly)
To be used for adjustment of the camera system.
3.2 SETUP
1. Setup for electrical adjustment with personal computer.
NOTE:
Remove one screw (1) first and the cover (JIG)
next.
COMMUNICATION CABLE JIG CONNECTOR
to 13 pin
RED
( JLIP_RX )
to 4 pin
( JLIP_TX )
WHITE
to 14 pin
BLACK
( GND )
COVER
(JIG)
1
JIG CONNECTOR
CABLE
COMMUNICATION CABLE
EXTENSION CONNECTOR
Note :
For supplying the power
through the coupler by
removing the cover (for jig),
use this extension connector
double for connecting the jig
connector cable.
Fig. 3-2-1 Connection for Service support system
10 1
20
PC CABLE
CN105
(JIG CONN.)
11
RS232C
COM Port
Service Support System
MENU
Personal Computer
3-2
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