JVC GR-DVM90U User manual

JVC SERVICE & ENGINEERING COMPANY OF AMERICA
DIVISION OF JVC AMERICAS CORP.
Head office
East Coast
Midwest
West Coast
Atlanta
Hawaii
:
:
:
:
:
:
1700 Valley Road Wayne, New Jersey 07470-9976
10 New Maple Avenue Pine Brook, New Jersey 07058-9641
705 Enterprise Street Aurora, Illinois 60504-8149
5665 Corporate Avenue Cypress, California 90630-0024
1500 Lakes Parkway Lawrenceville, Georgia 30043-5857
2969 Mapunapuna Place Honolulu, Hawaii 96819-2040
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
JVC CANADA INC.
Head office
Montreal
Vancouver
:
:
:
21 Finchdene Square Scarborough, Ontario M1X 1A7
16800 Rte Trans-Canadienne, Kirkland, Quebec H9H 5G7
13040 Worster Court Richmond, B.C. V6V 2B3
[phone]
[phone]
[phone]
Printed in Japan
S40895-03
DIGITAL VIDEO CAMERA
GR-DVM90U
No. 86565
June 2000
This service manual is printed on 100% recycled paper.
COPYRIGHT ©2000 VICTOR COMPANY OF JAPAN, LTD.
SPECIFICATIONS
For Connectors
Video output :1V ( p-p ) , 75 Ω, analog
Audio output : 300 mV (rms), 1 kΩ, analog, stereo
DV Input/output : 4-pin, IEEE 1394 compliant
Headphone output : ø3.5 mm, stereo
AC Power Adapter/Charger AA-V51U
Power requirement
U.S.A. and Canada : AC 120 V`, 60 Hz
Other countries : AC 110 V to 240 V`, 50 Hz/60 Hz
Power consumption : 23 W
Output
Charge : DC 7.2 V , 0.77 A
VTR : DC 6.3 V , 1.8 A
Dimensions (W x H x D) : 68 mm x 45 mm x 110 mm (2-11/16" x 1-13/16" x 4-3/8")
Weight : Approx. 254.5 g (0.57 lbs)
Docking Station
For General
Dimensions (W x H x D) : 55 mm x 36 mm x 107 mm (2-3/16" x 1-7/16" x 4-1/4")
Weight : Approx. 89.9 g (0.2 lbs)
For Connectors
S-Video : Y: 1 V (p-p), 75 Ω, analog output
C: 0.29 V (p-p), 75 Ω, analog output
Video : 1 V (p-p), 75 Ω, analog output
Audio : 300 mV (rms), 1 kΩ, analog output
JLIP/EDIT :ø3.5 mm, 4-pole, mini-head jack (compatible with RC-5325
plug)
PC :ø2.5 mm, 3-pole
External microphone input : 506 µV (rms), high impedance unbalanced with ø3.5 mm
(stereo)
PRINTER : For an optional video printer equipped with a PRINT DATA
connector
Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications
subject to change without notice.
Camcorder
For General
Power supply : DC 6.3 V (Using AC Power Adapter/Charger)
DC 7.2 V (Using battery pack)
Power consumption
LCD monitor off, viewfinder on : Approx. 4.6 W
LCD monitor on, viewfinder off : Approx. 5.5 W
Dimensions (W x H x D) : 51 mm x 125 mm x 97 mm (2-1/16" x 4-15/16" x 3-7/8")
(with the LCD monitor closed and the viewfinder pushed
back in)
Weight : Approx. 510 g (1.2 lbs)
(without cassette, MultiMediaCard and battery)
Approx. 585 g (1.3 lbs)
(incl. cassette, MultiMediaCard and battery)
Operating temperature :0°C to 40°C (32°F to 104°F)
Operating humidity : 35% to 80%
Storage temperature :–20°C to 50°C (–4°F to 122°F)
Pickup : 1/4" CCD (Progressive Scan)
Lens : F 1.8, f = 3.8 mm to 38 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 0.55" color LCD
Speaker : Monaural
For Digital Video Camera
Format : DV format (SD mode)
Signal format : NTSC 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.
For Digital Still Camera
Storage media : MultiMediaCard
Compression system : JPEG (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 MultiMediaCard [8 MB], with Sound Effects pre-stored)
FINE : 46 (VGA), 21 (XGA)
STANDARD : 133 (VGA), 64 (XGA)
(with an optional MultiMediaCard [4 MB])
FINE : 26 (VGA), 12 (XGA)
STANDARD : 76 (VGA), 36 (XGA)
(with an optional MultiMediaCard [8 MB])
FINE : 54 (VGA), 24 (XGA)
STANDARD : 155 (VGA), 75 (XGA)
GR-DVM90U No. 86565

TABLE OF CONTENTS
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 ..................................................................... 1-3
1.3.1 Disassembly flow chart ........................................................ 1-3
1.3.2 Disassembly method (I) ....................................................... 1-4
1.4 DISASSEMBLY OF 4MONITOR ASSEMBLY............................ 1-8
1.4.1 4Monitor assembly/Hinge assembly.................................. 1-8
1.4.2 Hinge assembly ................................................................... 1-8
1.5 DISASSEMBLY 0E VF ASSEMBLY ........................................... 1-9
1.5.1 0E. VF assembly ............................................................... 1-9
1.6 DISASSEMBLY OF 7OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY ................................................................... 1-10
1.6.1 Precautions ........................................................................ 1-10
1.6.2 How to remove OP block assembly and CCD board
assembly............................................................................ 1-10
1.6.3 How to install OP block assembly and CCD board
assembly............................................................................ 1-10
1.6.4 Replacement of service parts ............................................ 1-10
1.7 HOW TO TAKE OUT CASSETTE TAPE MANUALLY ................ 1-11
1.8 SERVICE NOTE ......................................................................... 1-12
1.9 EMERGENCY DISPLAY............................................................. 1-13
2. MECHANISM ADJUSTMENT
2.1 PRELIMINARY REMARKS ONADJUSTMENTAND REPAIR ..... 2-1
2.1.1 Precautions .......................................................................... 2-1
2.1.2 Notes on procedure for disassembly/assembly................... 2-1
2.2 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY........ 2-2
2.2.1 General statement ............................................................... 2-2
2.2.2 Explanation of mechanism mode......................................... 2-2
2.2.3 Mechanism timing chart .......................................................2-3
2.2.4 Disassembly/assembly of mechanism assembly................. 2-4
2.2.5 Disassembly/assembly ........................................................ 2-7
2.2.6 List of procedures for disassembly .................................... 2-13
2.2.7 Checkup and adjustment of mechanism phase................. 2-14
2.2.8 Assembling slide deck assembly and main deck
assembly............................................................................ 2-15
2.2.9 Locating tension pole......................................................... 2-16
2.3 SERVICE NOTE ......................................................................... 2-17
2.4 JIG CONNECTOR CABLE CONNECTOR ................................. 2-19
3. ELECTRICAL ADJUSTMENT
3.1 PREPARATION ............................................................................ 3-1
3.2 SETUP .......................................................................................... 3-1
3.3 FUSE LOCATION ......................................................................... 3-2
3.3.1 MAIN PWB (FOIL SIDE) ......................................................3-2
3.3.2 MAIN PWB (COMPONENT SIDE) ...................................... 3-2
3.3.3 MONITOR PWB (COMPONENT SIDE)............................... 3-3
4. CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM............................................ 4-1
CIRCUIT BOARD NOTES ............................................................ 4-2
4.1 BOARD INTERCONNECTIONS................................................... 4-3
4.2 CPU SCHEMATIC DIAGRAM ...................................................... 4-5
4.3 MSD CPU SCHEMATIC DIAGRAM ............................................. 4-7
4.4 A/HP SEL SCHEMATIC DIAGRAM .............................................. 4-9
4.5 DVMAIN SCHEMATIC DIAGRAM .............................................. 4-11
4.6 PHY SCHEMATIC DIAGRAM..................................................... 4-13
4.7 DVEQ/DVANA SCHEMATIC DIAGRAM ..................................... 4-15
4.8 PRE/REC SCHEMATIC DIAGRAM ............................................ 4-17
4.9 VIDEO SCHEMATIC DIAGRAM................................................. 4-19
4.10 CDS SCHEMATIC DIAGRAM .................................................... 4-21
4.11 DSP SCHEMATIC DIAGRAM ...................................................... 4-23
4.12 TG/VDR SCHEMATIC DIAGRAM .............................................. 4-25
4.13 REG CTLSCHEMATIC DIAGRAM............................................. 4-27
4.14 REGULATOR SCHEMATIC DIAGRAM ...................................... 4-29
4.15 STROBE SUB SCHEMATIC DIAGRAM ..................................... 4-31
4.16 DSC SCHEMATIC DIAGRAM .................................................... 4-33
4.17 AU DSP SCHEMATIC DIAGRAM .............................................. 4-35
4.18 B/W AND IR/TALLY SCHEMATIC DIAGRAMS.......................... 4-37
4.19 MDA SCHEMATIC DIAGRAMS .................................................. 4-39
4.20 IRIS &AF/ZOOM SCHEMATIC DIAGRAM ................................ 4-41
4.21 CCD SCHEMATIC DIAGRAM .................................................... 4-43
4.22 MONITOR A SCHEMATIC DIAGRAM ........................................ 4-45
4.23 MMC, W/B SENSAND EJECT SCHEMATIC DIAGRAMS......... 4-47
4.24 STROBE SCHEMATIC DIAGRAM ............................................. 4-49
4.25 AUDIOAD/DA SCHEMATIC DIAGRAM ..................................... 4-51
4.26 MAINAUDIO SCHEMATIC DIAGRAM ....................................... 4-53
4.27 AU NR SCHEMATIC DIAGRAM................................................. 4-55
4.28 VF A SCHEMATIC DIAGRAM .................................................... 4-57
4.29 JACK SCHEMATIC DIAGRAM ................................................... 4-59
4.30 CAMERAOPE UNIT, SUB OPE ASSY, ZOOM UNIT
AND DECK OPE UNIT SCHEMATIC DIAGRAMS .................... 4-61
4.31 MAIN CIRCUIT BOARD ............................................................. 4-63
4.32 MDAAND CCD CIRCUIT BOARD ............................................. 4-69
4.33 MONITOR CIRCUIT BOARD ..................................................... 4-71
4.34 MMCAND STROBE CIRCUIT BOARD...................................... 4-73
4.35 AUDIO VF CIRCUIT BOARD ..................................................... 4-75
4.36 JACK, W/BAND EJECT CIRCUIT BOARD................................ 4-77
4.37 POWER SYSTEM BLOCK DIAGRAM ....................................... 4-79
4.38 VIDEO SYSTEM BLOCK DIAGRAM.......................................... 4-81
4.39 REGULATOR SYSTEM BLOCK DIAGRAM ............................... 4-83
4.40 VOLTAGE CHARTS.................................................................... 4-85
5. PARTS LIST
5.1 PACKING ANDACCESSORY ASSEMBLY <M1> ........................ 5-1
5.2 FINAL ASSEMBLY <M2> .............................................................. 5-3
5.3 MECHANISMASSEMBLY <M3>.................................................. 5-6
5.4 ELECTRONIC VIEWFINDERASSEMBLY <M4> ......................... 5-8
5.5 MONITOR ASSEMBLY <M5>....................................................... 5-9
5.6 ELECTRICAL PARTS LIST ........................................................ 5-10
MAIN BOARDASSEMBLY <01>................................................ 5-10
MDABOARDASSEMBLY <02> ................................................. 5-20
CCD BOARDASSEMBLY <03> ................................................ 5-21
MONITOR BOARD ASSEMBLY <04> ........................................ 5-22
MMC BOARDASSEMBLY <06> ................................................ 5-23
STROBE BOARDASSEMBLY <07> .......................................... 5-23
AUDIO VF BOARDASSEMBLY <08> ........................................5-24
JACK BOARDASSEMBLY <09>................................................ 5-26
W/B BOARDASSEMBLY <11> ................................................. 5-26
EJECTBOARD ASSEMBLY <12>.............................................. 5-26
6. AC POWERADAPTER (AA-V51U)
6.1 CABINETASSEMBLY <MA> ........................................................ 6-1
6.2 SCHEMATIC DIAGRAM ............................................................... 6-2
6.3 CIRCUIT BOARD ......................................................................... 6-4
6.4 ELECTRICAL PARTS LIST .......................................................... 6-5
Section Title Page

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.
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 com-
ply 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.
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 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
transformer primary lead wires are performed using crimp type
connectors, if replacing the connectors is unavoidable, in or-
der 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
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.
Fig.4
(3) Align the lengths of the wires to be connected. Insert
the wires fully into the 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
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.
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
Fig.1
Power cord
Fig.2
cut close to connector
15 mm
Connector
Metal sleeve
1.25
2.0
5.5
Crimping tool

 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 compli-
ance 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’) 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 accessi-
ble 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.
Region
USA & Canada
Europe & Australia
Grounding Impedance (Z)
Z 0.1 ohm
Z 0.5 ohm
≤
≤
AC inlet
Earth pin
Exposed accessible part
Milli ohm meter
Grounding Specifications
Fig. 10
Clearance Distance (d), (d')
d, d' 3 mm
d, d' 4 mm
d, d' 3.2 mm
1 MΩR 12 MΩ/500 V DC
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 miute
AC 1 kV 1 minute
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
Japan
USA & Canada
Europe & Australia R 10 MΩ/500 V DC
Region
Insulation Resistance (R)
R 1 MΩ/500 V DC
≤
≤
≥≥
≤
≤
≤≤
≤
≤
AC 3 kV 1 minute
(Class 2)
AC 1.5 kV 1 minute
(Class 1)
d 4 mm
d' 8 mm (Power cord)
d' 6 mm (Primary wire)
Table 1 Specifications for each region
a, b, cLeakage Current (i)AC Line Voltage
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Japan
USA & Canada
i 1 mA rms Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
Europe & Australia
Region Load Z
≤
≤
≤
≤
≤
≤
1 kΩ
2 kΩ
1.5 kΩ
0.15 µF
50 kΩ
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.
2S40888-01
d'
d
Chassis
Power cord,
primary wire
Fig. 8
ab
c
V
Externally
exposed
accessible part
Z
Fig. 9

1-1
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.
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, immedi-
ately restore the locks to their original positions because the
locks are apt to come off the connector.
Fig. 1-1-2 Connector 2
(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
聽 (Others) Connector, Cover, Bracket, etc.
(Example)
• 2 (S1): Remove the two screws (S1) for removing the
part 1.
• CN A : Disconnect the connector A.
• SD1 : Unsolder at the point SD1.
(5) Precautions on disassembly/assembly.
SECTION 1
DISASSEMBLY
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 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
Connector
Flat wire
Connector
Connector
Connector
Flat wire
Fig. 1-1-4 Connector 4
B-B connector
Pull the board by both the sides in the direction of the ar-
row for disconnecting the B-B connector
Connector
Fig. 1-1-3 Connector 3
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]
CONN. CONNECTOR Pin No.
No.
ADECK OPE ASSY – AUDIO VF CN803 6
(1) (2) (3) (4) (5)
▲▲ ▲▲ ▲
1 DECK OPE ASSY Fig.1-3-1 2(S1), (L1)–
✩CN A
2 FRONT COVER (S2a), (S2b), 2(S2c), (S2d) –
ASSY (S2e), (S2f), (L2)
✩CN B
STEP PART Fig No. POINT NOTE
No.

1-2
23
Guide Driver
YTU94148A
Tweezers
P-895
4
INF Adjustment Lens Holder
YTU94087
13 14 15
Gray Scale Chart
YTU94133A
Light box Assembly
YTU93096A Color Bar Chart
YTU94133C
16
19 20
17
21 22
18
Torque Driver
YTU94088
5
Connector Extractor
YTU94036A
78
6
Bit
YTU94088-003
Slit Washer Installation Jig
YTU94121A
910
INF Adjustment Lens
YTU92001B
11 12
Camera Stand
YTU93079
Chip IC Replacement Jig
PTS40844-2
Jig Connector Cable
YTU93091B
Power Supply Jig
YTU94060A PC Cable
QAM0099-002
Service Support System
YTU94057-48
Cleaning Cloth
KSMM-01
Soldering Kit
YTU96016B
Adjustment Driver
YTU94028
Alignment Tape
MC-1
1
Extension connector
YTU94145A
1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT
1.2.1 Tools required for adjustments
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.
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. Connector extractor
To be used to release the connector.
6. Guide driver
To be used to turn the guide roller to adjustment of the
linarity of playback envelope.
7. Adjustment driver
To be used for adjustment.

1-3
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.
8. Slit washer installation jig
To be used to install slit washers.
9. Power supply jig
To be used for power supply to the set when the
exclusive DC power cord is not used. Carefully use
this jig, especially not to damage the battery terminal
(+/-).
10. Jig connector cable
Connected to CN1010 of the main board and used
for electrical adjustment, etc.
11. 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.
12. PC cable
To be used to connect the VideoMovie and a
personal computer with each other when a personal
computer is used for adjustment.
13. Alignment tape
To be used for check and adjustment of
interchangeability of the mechanism.
14. Service support system
To be used for adjustment with a personal computer.
15. INF adjustment lens
To be used for adjustment of the camera system.
16. 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.
17. Camera stand
To be used together with the INF adjustment lens
holder.
18. Light box assembly
To be used for adjustment of the camera system.
19. Gray scale chart (for Light box assembly)
To be used for adjustment of the camera system.
20. Color bar chart (for Light box assembly)
To be used for adjustment of the camera system.
21. Soldering kit
Thin head is made so that it can be inserted into
small spaces.
22. Cleaning cloth
Recommended cleaning cloth to wipe down the
video heads, mechanism (tape transport system),
optical lens surface.
1DECK OPE ASSY
2FRONT COVER ASSY
3UPPER CASE ASSY
(INC. MONITOR, etc.)
4MONITOR ASSY
5BASE ASSY
6LOWER CASE
(INC. OP BLOCK, E. VF)
7OP BLOCK ASSY
8STROBE ASSY
9MIC
0E VF ASSY
-AUDIO/VF BOARD ASSY
=MDA BOARD ASSY
~MAIN BOARD ASSY
! MECHANISM ASSY

1-4
1
DECK OPE ASSY Fig.1-3-1 2(S1), (L1)–
✩CN A
2 FRONT COVER (S2a), (S2b), 2(S2c), (S2d) –
ASSY (S2e), (S2f), (L2)
COVER (DV), STUD (HOOK)
✩CN B
3 U. CASE ASSY Fig. 1-3-2a 2(S3a), (S3b), 2(S3c), 3(S3d) NOTE3a
(Inc. MONITOR LOCK (MONITOR) NOTE3b
UNIT) ✩CN C, D, E
4 MONITOR ASSY Fig. 1-3-2b (S4a), (S4b) NOTE4
5 BASE ASSY Fig. 1-3-3 (S5a), (S5b), (S5c) –
✩CN F
6 L. CASE ASSY Fig. 1-3-4 6(S6) NOTE6a
✩CN G, H, J, K, L, M, NNOTE6b
NOTE6c
7 OP BLOCK ASSY Fig. 1-3-5 (S7) NOTE7a
NOTE7b
8 STROBE ASSY Fig. 1-3-6 (S8) NOTE8
9 MIC Fig. 1-3-7 (L9) NOTE9
✩CN O
0 E VF ASSY Fig. 1-3-8 (S0a), (S0b), (S0c), 2(L0a) NOTE0a
(L0b), BRACKET (TOP) NOTE0b
✩CN PNOTE0c
- AUDIO VF Fig. 1-3-9 2(S-a), (S-b), 2(L-)–
BOARD ASSY ✩CN Q
= MDA BOARD Fig. 1-3-10 (S=) NOTE=a
ASSY ✩CN R, , T, U, VNOTE=b
~ MAIN BOARD (S~a), (S~b), (L~) NOTE~
ASSY SHIELD PLATE
✩CN W, X
! MECHANIZM 2(S!a), (S!b), 2(L!)–
ASSY BRACKET (MECHA)
1.3.2 Disassembly method (I)
STEP PART Fig No. POINT NOTE
No.
Table 1-3-2
CONN. CONNECTOR Pin No.
No.
ADECK OPE ASSY –AUDIO VF CN803 6
BJACK CN901 MAIN CN1008 16
CMDA CN207 SUB OPE ASSY –7
DMAIN CN1004 W/B SENS –3
EMAIN CN1007 MONITOR CN7501 45/39
FMAIN CN1014 MULTI PIN –33
GMDA CN208 MMC CN601 14
HMDA CN205 OP BLOCK ASSY –24
JMAIN CN1009 EJECT SW –2
KMAIN CN1011 STROBE CN6501 12
LMAIN CN1003 CCD –18
MMAIN CN1016 AUDIO VF CN801 100
NMAIN CN1017 CCD CN5203 2
OAUDIO VF CN804 MIC –5
PVF BL CN501 AUDIO VF CN805 20
QAUDIO VF CN802 CAMERA OPE UNIT –12
RMAIN CN1002 MDA CN206 80
MDA CN202 DRUM MOTOR –11
TMDA CN201 LOADING MOTOTR –6
UMDA CN203 CAPSTAN MOTOR –18
VMDA CN204 SENSOR –15
WMAIN CN1005 ROTARY ENCODER –6
XMAIN CN1001 HEAD –8
Table 1-3-3
Note3a:
When removing, be careful not to break the wire.
Note3b: Whenremoving,becarefulnottodamageanypart.
On removing, slightly open the front side so as to
shift it from the frame.
Note4: For disassembling method, refer to Fig. 1-4-1.
Note6a: When removing, be careful not to break the wire.
Note6b: Remove the board assembly (MAIN/MDA) and
mechanism assembly together.
Note6c: When installing, arrange the wire between the OP
block assembly and VF assembly.
Note7a: Whenremoving,becarefulneithertobreakthewire
nor to damage any part.
Note7b: For disassembling method, refer to Fig. 1-6-1.
Note8: Be careful not to get an electric shock during the
work.
Note9: When reassembling, carefully arrange the wire.
Note0a: When disassembling/reassembling, be careful not
to damage any part.
Note0b: Whenreassembling,setthebracket(top)astheVF
unitispulledout,andsecuretheinstallationinorder
of (L
0 a) and (L 0 b).
Note0c: For disassembling method, refer to Fig. 1-5-1.
Note=a: Whendisconnectingtheconnector,carefullyhandle
the FPC on the top of the connector.
Note=b: Disconnect the connector V last, because it is
positioned inside.
Note~: When reassembling, carefully locate the FPC so
that it is sandwiched between the mechanism
assembly and MAIN board assembly.

1-5
Fig. 1-3-2a
(S c)
13
LOCK
(MONITOR)
3
(S d)
17
3
(S c)
14
3
(S d)
16
3
(S a)
11
3
(S a)
10
3
NOTE a
3
NOTE b
3
NOTE b
3
(S b)
12
3
3
4
E
C
(S d)
15
3
D
Fig. 1-3-2b
4
3
(S b)
19
4
(S a)
18
4
NOTE 4
Fig. 1-3-1
A
B
2
COVER
(DV)
STUD
(HOOK)
HOOK
1
(L )
1
(L )
2
(S )
1
(S a)
1
(S )
1
2
3
2
(S b)
4
2
(S f)
9
2
(S e)
8
2
(S c)
5
2
(S c)
6
2
(S d)
7
2

1-6
Fig. 1-3-3
F
5
(S a)
20
5
(S b)
21
5(S c)
22
5
Fig. 1-3-5
Fig. 1-3-4 Fig. 1-3-6
G
KL
M
J
N
6
(S )
28
6
(S )
25
6
NOTE b
6
NOTE a
6
NOTE c
6
(S )
27
6
(S )
24
6
(S )
23
6
(S )
26
6
H
7
(S )
29
7
NOTE a
7
NOTE b
7
NOTE a
7
8(S )
30
8
NOTE
8

1-7
Fig. 1-3-7 Fig. 1-3-9
Fig. 1-3-8 Fig. 1-3-10
9
O
(L )
9
NOTE
9
NOTE
9
11
Q
(S a)
35
11
(S a)
34
11
(S b)
36
11
(L )
11
W
13
12
S
T
U
R
V
W14
X
(S a)
40
BRACKET
(MECHA)
14
(S b)
39
13
(S b)
42
NOTE 12 b
NOTE 13
14
NOTE a
12
(S a)
41
14
(S a)
38
13
(S )
37
12
(L )
14
(L )
13
SHIELD
PLATE
X
P
10
10
NOTE a
10
NOTE c
10
NOTE b
10
(S a)
31
10
(S b)
32
10
(L a)
10
(L
FPC
a)
10
(L b)
10
(L b)
10
(S c)
33
10
BRACKET
(TOP)
BRACKET
(TOP)

1-8
Fig. 1-4-1
1.4 DISASSEMBLY OF 4MONITOR ASSEMBLY
1.4.1 4Monitor 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 (L4a, L4b) from engagement and remove the
monitor cover assembly.
2. Remove the parts out of the monitor case assembly and
unlock the connector Y. While raising the hinge assembly
upwards, get the two hooks (L4c, L4d) disengaged and
disconnect the FPC by pulling it out. Then, remove the
hinge assembly.
Note4a:
When removing the parts out of the monitor case
assembly, be very careful not to damage the FPC
and parts.
3. Disconnect FPC from the connector Zand then remove
the MONITOR board assembly and backlight.
1.4.2 Hinge assembly
1. Remove the two screws (5, 6). While releasing the two
hooks (L4f, L4g) from engagement, remove the hinge
cover (U).
Note4c:
Be careful not to lose any part during the above-
mentioned process.
2. Draw the FPC assembly out of the hinge cover (L) and
then remove the FPC assembly from the hinge assembly.
Note4d:
When reassembling, wind the FPC assembly
around the hinge assembly by three turns and a
half.
Be careful not to break the FPC wire during the
work.
✽: 0.098N·m (1.0kgf·cm)
Note4b:
Remove the MONITOR board assembly and
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.
BACK
LIGHT
MONITOR
BOARD
ASSY
MONITOR
COVER ASSY
LCD
MODULE
Z
Y
(L e)
4
(L a)
4
(L b)
4
NOTE b
4
(S d)
3
4
(S c)
2
4
(S c)
1
4
(S f)
5
4
(S f)
6
4
(S e)
4
4
(L c)
4
(L g)
4
(L f)
4
(L d)
4
NOTE
FPC ASSY
d
4
NOTE a
4
NOTE d
4
NOTE a
4
NOTE c
MAGNET
HINGE
COVER(U)
4
FPC ASSY
HINGE
COVER(L)
HINGE
ASSY
HINGE
ASSY

1-9
7
6
EYE CUP
GUIDE(VF)
CASE/CAP 2
CAP
(VF)
1
3
4
5
HOLDER
(LCD)
LCD MODULE
B/L SUB ASSY
FRAME(VF)
FFC
EYE PIECE
SUB ASSY
NOTE e
5
(L b)
5
a
(L a)
5
NOTE f
5
NOTE d
5
1.5 DISASSEMBLY OF 0E VF ASSEMBLY
1.5.1 0E VF assembly
Note5a:
When disassembling the E VF assembly, remove
the frame (VF) from the case assembly depending
on the situation.
Note5b: BeverycarefulnottogettheinsideoftheVFsoiled
or dusty during and after disassembling the E VF
assembly.
Note5c: Afterthescrewhavingtheloose-prooftipwasonce
removed from the E VF assembly, don’t reuse it.
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 eyepiece
Fig. 1-5-1
sub assembly.
<Frame (VF)>
5. Remove the screw (5) first and then LCD module/holder
(LCD).
Note5d:
Pay heed to the FFC not to damage it during the
removing work.
6. Get the two hooks (L5a, L5b) disengaged and then
remove the holder (LCD).
Note5e:
Carefully proceed with the above-mentioned work
not to damage any part.
7. Disconnect the connector (a) and remove the LCD module.
Note5f: Pay heed the parts not to damage any thing.
✽: 0.069N·m (0.7kgf·cm)
✽✽ : 0.098N·m (1.0kgf·cm)

1-10
1.6 DISASSEMBLY OF7OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY
1.6.1 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.
1.6.2 HowtoremoveOPblockassemblyandCCDboard
assembly
1. Unsolder at the two points (SD1) and remove the shield
case.
2. Unsolder at the sixteen points (SD2) and remove the CCD
board assembly.
3. Remove the two screws (1, 2) and then remove the CCD
base assembly.
Note6a:
CarefullyremovetheCCDbaseassembly,because
thespace rubberandoptical LPFmaybe removed
together with the CCD image sensor.
Note6b: When replacing the CCD image sensor, don’t
replace it individually but replace the CCD base
assembly in whole with a new one.
Fig. 1-6-1
1.6.3 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 assembly,
and fasten it by soldering at the fourteen points (SD2).
4. Install the shield case and fasten it by soldering at the two
points (SD1).
1.6.4 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
Note6c:
When soldering the FPC wire of the focus motor or
zoom motor during the replacement work, be sure
to keep the tip of a soldering iron approximately 1
mm above the terminal.
Note6d: Theirismotorunitincludesone FPCassemblyand
two sensors.
✽: 0.118N·m (1.2kgf·cm)
2
35 4
1
OP BLOCK ASSEMBLY
SHIELD CASE
(SD2)
(SD1)
NOTE6c
FOCUS MOTOR
NOTE6c
ZOOM MOTOR
NOTE6a,b
CCD
BASE ASSEMBLY
NOTE6a
OPTICAL LPF
CCD BOARD
ASSEMBLY
NOTE6c,d
IRIS MOTOR UNIT
NOTE6a
SPACER
OPTICAL LPF
THIN
THICK
CCD
SIDE
OP
SIDE
BLUE
67
89
✽
✽
✽✽✽
✽
✽
✽
✽

1-11
1.7 HOW TO TAKE OUT CASSETTE TAPE MANUALLY
• How to remove cassette tape manually from the set
If the cassette tape is not ejected from the cassette housing
because of some electric trouble, it can be removed from the
set by the temporary measure that is to turn the loading motor
forcibly as mentioned below.
Through the removing work, pay heed to the exterior parts
such as the covers, etc. as well as to the cassette tape to get
nothing damaged.
<Procedure>
1. Disconnect the power supply (battery or DC cord) from
the set.
2. Dismantle the deck operation, front cover assembly
referring to the section 1 (page 1-4, 1-5).
Note:
When and after dismantling the front assembly, pay
careful attention to the internal components such as
the OP block assembly (lens), battery terminal, etc.
that are exposed after the front assembly is removed.
3. Open the cassette cover assembly completely and hold
it open through the work.
4. Supply 3 V DC to the terminals (electrodes) on the top
of the loading motor to slide the slide deck assembly
to the front side, and stop the power supply when both
the pole bases are positioned in the unloading status
inside the tape. Since the tape remains as it is not
wound up at that time, pay careful attention to the tape
Fig. 1-7-1
not to damage it and not to soil it with grease, etc. If
unloading operation is continued after both the pole
bases return to their respective positions inside the tape,
the mechanism enters the eject mode and the cassette
housing assembly is lifted up. If it occures, the pulled-
out tape may be caught in the cassette lid and the tape
may be resultingly damaged.
5. Turn the center gear assembly with a sharp-pointed thing
(chip IC replacing jig, etc.) in the direction of the arrow
to wind up the tape. Carefully turn the center gear assem-
bly not to damage the tape.
If the tape cannot be wound up by turning the center gear
assembly, it is thinkable that the idler arm assembly is
positioned not to engage with the reel disk assembly. If
so, shift the mechanism mode so that the idler arm
assembly is correctly engaged with the reel disk assem-
bly. After fine adjusting the engagement, try to wond up
the tape is the same manner once more.
In such the event, it is recommended to shift the idler
arm assembly slightly in the loading direction.
6. After confirming that the tape is completely wound up,
proceed with unloading operation until the mechanism
enters the eject mode. Then, take the cassette tape out
of the cassette housing.
7. After removing the cassette tape, check to see if the
manually wound part of the tape is not soiled with grease,
etc. At the same time, check the mechanism assembly,
particularly the tape transport system, whether there is
something abnormal or not.
(DC3V)
(SUP)
REEL DISK
2
3
1
4
(TU)
REEL DISK
CAPSTAN
MOTOR
DRUM

1-12
Table 1-8-1
1.8 SERVICE NOTE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
12345
✻✻✻✻
✻ ✻
Fig. 1-3-1 Fig. 1-3-2a Fig. 1-3-2b Fig. 1-3-3
I IIII I IIIIII IIVIII II IIII II
23 24 25 26 27 28 29 30 –31 32 33 34 35 36 37 38 39
8
7
4
MONITOR ASSY
6
!
09-=~
Fig. 1-3-4 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
Fig. 1-3-10
I
IIII III
Fig. 1-4-1
III
IIIII
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
→
→
→
→
→
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
→
→
→
→
–
40 41 42 1234 56
1234 567
0
E VF ASSY
V V V V III V V
7
OP BLOCK ASSY
Fig. 1-6-1
II
1234 56789
< NOTE >
1) ✻; Dont’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: 0.069N·m (0.7kgf·cm)
Fig. 1-5-1

1-13
1. TheCAPSTANFG signal isnot received bythe 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.)
1.9 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.
@@@@ E01
UNIT IN
SAFEGUARD MODE
E01
REMOVE AND
REATTACH BATTERY
Example (in case of the error number E01):
E01 LOADING
LCD
display Emergency
mode Details Possible cause
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].
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.
E02 UNLOADING In the case the encoder position is not shifted
to the next point though the loading motor has
rotatedin the unloading direction for4 seconds
or more. This error is defined as [E02].
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.
E03 TU & SUP REEL
FG In the case no REEL FG is produced for 4 sec-
onds or more in the capstan rotation mode af-
terloadingwas complete, themechanismmode
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.
1. Theidler gear doesnot 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 over-
load 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 In the case there is no DRUM FG input in the
drumrotation mode for 4 secondsor more.This
error is defined as [E04], and the mechanism
mode is shifted to STOP with the pinch roller
set off.
1. Thedrum cannot bestarted or drumrotationis 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.
E05 –––
E06 CAPSTAN FG 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.
(DVC_03)
Table 1-9-1

2-1
ACassette housing assembly T Fig. 2-2-12 3(S1),(L1a)-(L1d) 1a, 1b, 1c, 1d Adjustment
2a Reel disk (SUP) assembly T Fig. 2-2-13 (W2) 2a, 2b
2b Reel disk (TU) assembly T Fig. 2-2-13 (W2) 2a, 2b
2c Reel cover assembly T Fig. 2-2-13 (S2b),2(S2a),(W2) 2d
3a Tension arm assembly T Fig. 2-2-14 (W3a) 3b
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 tightening
torque of each screw. Unless otherwise specified, tighten a
screw with the torque of 0.039 N·m (0.4 kgf·cm).
2. Be sure to disconnect the set from the power supply before
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 damage other
parts nor to fit wrong parts by mistake.
2.1.2 Notes on procedure for disassemby/assembly
The disassembling procedure table (Table 2-2-2 on page
2-5, 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 ac-
tual 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.
(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
(1) (2) (3) (4) (5) (6) (7)
5
55
5555
(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 A= Connector A.
(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 reassem-
bling, refer to “2.2.7 Check and adjustment of mechanism
phase”.)
(7) This column indicates required after-disassembling/-
reassembling work such as phase adjustment or
mechanism adjustment.

2-2
<C IN mode>
<EJECT mode>
<STOP mode>
<SHORT FF mode>
<PLAY mode>
<REV mode>
2.2 DISASSEMBLY/ASSEMBLY OF MECHANISM
ASSEMBLY
2.2.1 General statement
The mechanism should generally be disassembled/assem-
bled in the EJECT mode (ASSEMBLY mode). (Refer to Fig.
2-2-1.)
However, when the mechanism is removed from the main
body, it is set in the STOP mode. Therefore, it is required to
<Mechanism assembly/Cassette housing assembly> <Back side of the mechanism assembly>
Motor
DC3V
–+
EJECT mode
Back side of deck
Fig. 2-2-1
2.2.2 Explanation of mechanism mode
The mechanism mode of this model is classified into six
modes as shown in Table 2-2-1. Each mechanism mode can
be distinguished from others by the relative position of “䢇”
mark on the sub cam gear to the inner or outer protrusion
on the main deck.
Fig. 2-2-2 Fig. 2-2-3 Fig. 2-2-4
Fig. 2-2-5 Fig. 2-2-6 Fig. 2-2-7
shift the mechanism mode from the STOP mode to the EJECT
mode after the mechanism is removed from the main body.
In such the case, supply 3 V DC to the electrode on the top
of the loading motor to enter the mechanism mode into the
EJECT mode.
Refer to Fig. 2-2-2 to 2-2-7 below.
The EJECT mode, C IN mode and SHORT FF mode should
be recognized by the relative position of the “䢇”mark to the
inner protrusion, while the STOP mode, REV mode and PLAY
mode should be recognized by that to the outer protrusion.

2-3
2.2.3 Mechanism timing chart
ENCODER (ø10)
MODE
PARTS
MAIN CAM (ø10.4)
SUB CAM (ø11)
ENCODER (ø10)
MAIN CAM (ø10.4)
SUB CAM (ø11)
POLE BASE
EJECT LEVER
SLIDE
<SLIDE DECK>
CAM SW
A
B
C
RELEASE GUIDE
SUP LOADING
SUB BRAKE (T)
PINCH ROLLER
BRAKE
PAD ARM
TENSION
0
0
0
EJECT C IN
30
31.7
33
70
74.04
77
SHORT FF STOP
169.2
160
176
REV
211.5
200
220
PLAY
280.3
265
291.5
43.1
45.6
47.4
46.8
49.5
51.5
122.5
129.5
134.7
156.6
148.1
162.9
44.6
47.2
49.1
49.2
52.0
54.1 161.7
155.5
147.0 250.5
265.0
275.6
SLIDE STARTSLIDE END
ROTARY
ENCODER
3
2
1
Table 2-2-1