JVC GR-DVM90U Service Manual

DIGITAL VIDEO CAMERA

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]

S40895-03

GR-DVM90U

No. 86565

GR-DVM90U

SPECIFICATIONS

Camcorder

For General

Power supply : DC 6.3 V (Using AC Power Adapter/Charger)

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")

Weight : Approx. 510 g (1.2 lbs)

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

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

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

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)

DC 7.2 V

(with the LCD monitor closed and the viewfinder pushed
back in)

(without cassette, MultiMediaCard and battery)
Approx. 585 g (1.3 lbs)
(incl. cassette, MultiMediaCard and battery)

system

: Audio: PCM digital recording, 32 kHz 4-channel (12-bit),

48 kHz 2-channel (16-bit)

LP: 12.5 mm/s

(Using battery pack)

(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)

For Connectors

Video output :1 V (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

VTR : DC 6.3 V
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)

, 0.77 A
, 1.8 A

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
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

PC : ø2.5 mm, 3-pole
External microphone input : 506 µV (rms), high impedance unbalanced with ø3.5 mm

PRINTER : For an optional video printer equipped with a PRINT DATA

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, analog output

plug)

(stereo)

connector

Printed in Japan

This service manual is printed on 100% recycled paper.

COPYRIGHT

© 2000 VICTOR COMPANY OF JAPAN, LTD.

No. 86565

June 2000

TABLE OF CONTENTS

Section Title Page

Important Safety Precautions
INSTRUCTIONS

1. DISASSEMBLY

1.1 BEFORE ASSEMBL Y 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,

ASSEMBL Y 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 4 MONITOR ASSEMBL Y............................ 1-8

1.4.1 4 Monitor assembly/Hinge assembly.................................. 1-8

1.4.2 Hinge assembly ................................................................... 1-8

1.5 DISASSEMBLY 0 E VF ASSEMBLY ........................................... 1-9

1.5.1 0 E. VF assembly ............................................................... 1-9

1.6 DISASSEMBLY OF 7 OP 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 ON ADJUSTMENT AND 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

Section Title Page

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 CTL SCHEMATIC 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 SENS AND EJECT SCHEMATIC DIAGRAMS......... 4-47

4.24 STROBE SCHEMATIC DIAGRAM ............................................. 4-49

4.25 AUDIO AD/DA SCHEMATIC DIAGRAM ..................................... 4-51

4.26 MAIN AUDIO 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 CAMERA OPE UNIT, SUB OPE ASSY, ZOOM UNIT

AND DECK OPE UNIT SCHEMATIC DIAGRAMS .................... 4-61

4.31 MAIN CIRCUIT BOARD ............................................................. 4-63

4.32 MDA AND CCD CIRCUIT BOARD ............................................. 4-69

4.33 MONITOR CIRCUIT BOARD ..................................................... 4-71

4.34 MMC AND STROBE CIRCUIT BOARD......................................4-73

4.35 AUDIO VF CIRCUIT BOARD ..................................................... 4-75

4.36 JACK, W/B AND 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 AND ACCESSORY ASSEMBLY <M1> ........................ 5-1

5.2 FINAL ASSEMBLY <M2>.............................................................. 5-3

5.3 MECHANISM ASSEMBLY <M3>.................................................. 5-6

5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4> ......................... 5-8

5.5 MONITOR ASSEMBL Y <M5>....................................................... 5-9

5.6 ELECTRICAL PARTS LIST ........................................................ 5-10

MAIN BOARD ASSEMBLY <01>................................................ 5-10

MDA BOARD ASSEMBLY <02> ................................................. 5-20

CCD BOARD ASSEMBLY <03>................................................ 5-21

MONITOR BOARD ASSEMBLY <04>........................................5-22

MMC BOARD ASSEMBLY <06> ................................................ 5-23

STROBE BOARD ASSEMBLY <07>.......................................... 5-23

AUDIO VF BOARD ASSEMBLY <08>........................................5-24

JACK BOARD ASSEMBLY <09>................................................ 5-26

W/B BOARD ASSEMBLY <11> ................................................. 5-26

EJECT BOARD ASSEMBLY <12>.............................................. 5-26

6. AC POWER ADAPTER (AA-V51U)

6.1 CABINET ASSEMBLY <MA> ........................................................ 6-1

6.2 SCHEMATIC DIAGRAM ............................................................... 6-2

6.3 CIRCUIT BOARD ......................................................................... 6-4

6.4 ELECTRICAL PARTS LIST .......................................................... 6-5

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
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.

symbol and shaded ( ) parts are

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.

1.25

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

1

S40888-01



Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compli­ance with safety standards.

1. Insulation resistance test

Confirm the specified insulation resistance or greater between power cord plug prongs and
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.

4. Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug prongs and externally exposed accessi­ble parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and
following table 2.

5. Grounding (Class 1 model only)

Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in,
Video out, Audio in, Audio out or Fixing screw etc.).

Measuring Method:

Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.

AC inlet

Earth pin

Exposed accessible part

Grounding Specifications

Region

USA & Canada

Europe & Australia

Chassis

Fig. 8

Externally
exposed
accessible part

Grounding Impedance (Z)

d

d'

Fig. 9

≤

Z 0.1 ohm

≤

Z 0.5 ohm

Power cord,
primary wire

ab

Z
V

c

Milli ohm meter

Fig. 10

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

110 to 130 V

200 to 240 V

100 V

110 to 130 V

110 to 130 V

220 to 240 V

Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

Region

Japan

USA & Canada

Europe & Australia R 10 MΩ/500 V DC

Region Load Z

Japan

USA & Canada

Europe & Australia

Table 2 Leakage current specifications for each region

Insulation Resistance (R)

≤

R 1 MΩ/500 V DC

≥≥

1 MΩ R 12 MΩ/500 V DC

≤

Table 1 Specifications for each region

1 kΩ

0.15 µF

1.5 kΩ

2 kΩ

50 kΩ

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 miute

AC 1 kV 1 minute
AC 3 kV 1 minute

AC 1.5 kV 1 minute

i 1 mA rms Exposed accessible parts

i 0.5 mA rms

i 0.7 mA peak
i 2 mA dc

i 0.7 mA peak
i 2 mA dc

2

≤
≤

≤
≤

≤
≤

(Class 2)

(Class 1)

Clearance Distance (d), (d')

≤

d, d' 3 mm

≤

d, d' 4 mm

≤

d, d' 3.2 mm

≤

d 4 mm

≤

d' 8 mm (Power cord)

≤

d' 6 mm (Primary wire)

a, b, cLeakage Current (i)AC Line Voltage

Exposed accessible parts

Antenna earth terminals

Other terminals

S40888-01

SECTION 1

Connector

Flat wire

Connector

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

PART Fig No. POINT NOTE

DECK OPE ASSY Fig.1-3-1 2(S1), (L1)–

✩CN A

FRONT COVER (S2a), (S2b), 2(S2c), (S2d) –
ASSY (S2e), (S2f), (L2)

✩CN B

▲▲ ▲▲ ▲

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.

(1) (2) (3) (4) (5)

(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.

1.1.3 Destination of connectors
Note:

Three kinds of double-arrows in connection tables re­spectively show kinds of connector/wires.

: Wire

: Flat wire
: Board to Board connector

[Example]

CONN.

No.

A DECK OPE ASSY – AUDIO VF CN803 6

CONNECTOR Pin No.

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

Fig. 1-1-4 Connector 4

1-1

1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY, ASSEMBLY AND ADJUSTMENT

1.2.1 Tools required for adjustments

1

5

9

13 14 15

Torque Driver

YTU94088

Connector Extractor

YTU94036A

Power Supply Jig

YTU94060A

Alignment Tape

MC-1

23

6

10

Bit

YTU94088-003

Guide Driver

YTU94148A

Jig Connector Cable

YTU93091B

Service Support System

YTU94057-48

11 12

Tweezers

P-895

Adjustment Driver

78

YTU94028

Extension connector

YTU94145A

INF Adjustment Lens

YTU92001B

Chip IC Replacement Jig

4

16

PTS40844-2

Slit Washer Installation Jig

YTU94121A

PC Cable

QAM0099-002

INF Adjustment Lens Holder

YTU94087

17

21 22

Camera Stand

YTU93079

Soldering Kit

YTU96016B

Light box Assembly

18

YTU93096A

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.

19 20

Gray Scale Chart

YTU94133A

Table 1-2-1

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.

Color Bar Chart

YTU94133C

1-2

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.

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.

1 DECK OPE ASSY

2 FRONT COVER ASSY

3 UPPER CASE ASSY

(INC. MONITOR, etc.)

4 MONITOR ASSY

5 BASE ASSY

6 LOWER CASE

(INC. OP BLOCK, E. VF)

7 OP BLOCK ASSY

8 STROBE ASSY

9 MIC

0 E VF ASSY

- AUDIO/VF BOARD ASSY

= MDA BOARD ASSY

~ MAIN BOARD ASSY

!

MECHANISM ASSY

1-3

1.3.2 Disassembly method (I)

STEP

No.

1

2

3

4

5

6

7

8

9

0

-

=

~

!

PART Fig No. POINT NOTE

DECK OPE ASSY Fig.1-3-1 2(S1), (L1) –

✩CN A

FRONT COVER (S2a), (S2b), 2(S2c), (S2d) –
ASSY (S2e), (S2f), (L2)

COVER (DV), STUD (HOOK)
✩CN B

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

MONITOR ASSY Fig. 1-3-2b (S4a), (S4b) NOTE4

BASE ASSY Fig. 1-3-3 (S5a), (S5b), (S5c) –

✩CN F

L. CASE ASSY Fig. 1-3-4 6(S6) NOTE6a

✩CN G, H, J, K, L, M, N NOTE6b

OP BLOCK ASSY Fig. 1-3-5 (S7) NOTE7a

STROBE ASSY Fig. 1-3-6 (S8) NOTE8

MIC Fig. 1-3-7 (L9) NOTE9

✩CN O

E VF ASSY Fig. 1-3-8 (S0a), (S0b), (S0c), 2(L0a) NOTE0a

(L0b), BRACKET (TOP) NOTE0b
✩CN P NOTE0c

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, S, T, U, V NOTE=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)

Table 1-3-2

NOTE6c

NOTE7b

CONN.

No.

A DECK OPE ASSY – AUDIO VF CN803 6
B JACK CN901 MAIN CN1008 16
C MDA CN207 SUB OPE ASSY – 7
D MAIN CN1004 W/B SENS – 3
E MAIN CN1007 MONITOR CN7501 45/39
F MAIN CN1014 MULTI PIN – 33
G MDA CN208 MMC CN601 14
H MDA CN205 OP BLOCK ASSY – 24
J MAIN CN1009 EJECT SW – 2
K MAIN CN1011 STROBE CN6501 12
L MAIN CN1003 CCD – 18
M MAIN CN1016 AUDIO VF CN801 100
N MAIN CN1017 CCD CN5203 2
O AUDIO VF CN804 MIC – 5
P VF BL CN501 AUDIO VF CN805 20
Q AUDIO VF CN802 CAMERA OPE UNIT – 12
R MAIN CN1002 MDA CN206 80
S MDA CN202 DRUM MOTOR – 11
T MDA CN201 LOADING MOTOTR – 6
U MDA CN203 CAPSTAN MOTOR – 18
V MDA CN204 SENSOR – 15
W MAIN CN1005 ROTARY ENCODER – 6
X MAIN CN1001 HEAD – 8

CONNECTOR Pin No.

Table 1-3-3

Note3a:
Note3b:

When removing, be careful not to break the wire.
When removing, be careful not to damage any part.
On removing, slightly open the front side so as to

shift it from the frame.

Note4:
Note6a:
Note6b:

For disassembling method, refer to Fig. 1-4-1.
When removing, be careful not to break the wire.
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:

When removing, be careful neither to break the wire
nor to damage any part.

Note7b:
Note8:

For disassembling method, refer to Fig. 1-6-1.
Be careful not to get an electric shock during the

work.

Note9:
Note0a:

When reassembling, carefully arrange the wire.
When disassembling/reassembling, be careful not

to damage any part.

Note0b:

When reassembling, set the bracket (top) as the VF
unit is pulled out, and secure the installation in order

0

a) and (L0b).

of (L

Note0c:
Note=a:

For disassembling method, refer to Fig. 1-5-1.
When disconnecting the connector, carefully handle

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.

1-4

(S b)

STUD

(HOOK)

3

2

(S a)

4

2

HOOK

(S f)

2

9

2

8

2

(S e)

COVER

(DV)

B

1

(L )

A

1

7

2

(S d)

1

1

(S )

5

2

(S c)

2

(L )

6

2

(S c)

2

1

(S )

18

4

(S a)

3

19

4

(S b)

NOTE

4

4

Fig. 1-3-1

D

C

17

3

(S d)

NOTE b

Fig. 1-3-2b

10

NOTE b

3

3

(S a)

3

11

3

NOTE a

3

(S a)

LOCK

(MONITOR)

E

12

3

(S b)

13

3

(S c)

14

3

(S c)

4

16

3

3

(S d)

15

3

(S d)

Fig. 1-3-2a

1-5

29

7

(S )

5

20

5

(S a)

(S b)

6

21

5

(S c)

Fig. 1-3-3

22

5

25

6

(S )

NOTE a

7

7

NOTE b

F

NOTE a

Fig. 1-3-5

7

7

NOTE a

1-6

NOTE c

N

6

23

6

(S )

G

28

6

(S )

27

6

(S )

Fig. 1-3-4 Fig. 1-3-6

NOTE b

J

(S )

K

H

6

6

L

M

24

(S )

6

26

6

NOTE

8

8

30

8

(S )

NOTE

W

13

12

S

T

U

R

V

W

14

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

O

9

9

(L )

35

11

9

(S a)

11

(L )

34

11

Q

(S a)

NOTE

10

(L b)

P

9

31

10

(S a)

Fig. 1-3-7 Fig. 1-3-9

NOTE a

(TOP)

BRACKET

10

32

10

(S b)

10

NOTE c

10

10

(L a)

36

11

(S b)

11

10

NOTE b

10

BRACKET

(TOP)

10

(L

a)

10

(L b)

Fig. 1-3-8 Fig. 1-3-10

FPC

33

10

(S c)

1-7

1.4 DISASSEMBLY OF 4 MONITOR ASSEMBLY

1.4.1 4 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 (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 Z and then remove
the MONITOR board assembly and backlight.

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.

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 above­mentioned 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.

4

NOTE d

FPC ASSY

HINGE
ASSY

4

(L g)

NOTE a

4

(L c)

HINGE
ASSY

5

4

(S f)

(L f)

HINGE
COVER(U)

4

4

6

4

(S f)

NOTE c

MAGNET

FPC ASSY

NOTE

HINGE
COVER(L)

4

4

(L d)

MONITOR
COVER ASSY

4

(L a)

1

4

(S c)

2

4

(S c)

4

4

d

NOTE b

4

(L b)

Y

Z

4

4

(S e)

3

4

(S d)

MONITOR
BOARD
ASSY

4

(L e)

BACK
LIGHT

LCD
MODULE

1-8

Fig. 1-4-1

4

NOTE a

✽ : 0.098N·m (1.0kgf·cm)

1.5 DISASSEMBLY OF 0 E VF ASSEMBLY

1.5.1 0E VF assembly
Note5a:

Note5b:

Note5c:

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

When disassembling the E VF assembly, remove
the frame (VF) from the case 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.

sub assembly.

<Frame (VF)>

5. Remove the screw (5) first and then LCD module/holder
(LCD).

Note5d:

6. Get the two hooks (L5a, L5b) disengaged and then

Note5e:

7. Disconnect the connector (a) and remove the LCD module.

Note5f:

Pay heed to the FFC not to damage it during the
removing work.

remove the holder (LCD).

Carefully proceed with the above-mentioned work
not to damage any part.

Pay heed the parts not to damage any thing.

B/L SUB ASSY

NOTE d

5

FFC

EYE PIECE

SUB ASSY

NOTE e

5

(L a)

a

5

(L b)

NOTE f

LCD MODULE

EYE CUP

CASE/CAP

GUIDE(VF)

2

6

CAP

3

5

5

HOLDER

(LCD)

1

5

(VF)

4

7

FRAME(VF)

✽ : 0.069N·m (0.7kgf·cm)

✽✽ : 0.098N·m (1.0kgf·cm)

Fig. 1-5-1

1-9

1.6 DISASSEMBLY OF 7 OP 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 How to remove OP block assembly and CCD board

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:

Note6b:

Carefully remove the CCD base assembly, because
the space rubber and optical LPF may be removed
together with the CCD image sensor.

When replacing the CCD image sensor, don’t
replace it individually but replace the CCD base
assembly in whole with a new one.

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:

Note6d:

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.

The iris motor unit includes one FPC assembly and
two sensors.

✽ : 0.118N·m (1.2kgf·cm)

NOTE6c,d

IRIS MOTOR UNIT

✽

✽

35

OP BLOCK ASSEMBLY

✽

4

NOTE6c

FOCUS MOTOR

✽

✽

7

6

✽

8

OPTICAL LPF

BLUE

OP

SIDE

✽

CCD

SIDE

THIN

9

NOTE6a

OPTICAL LPF

NOTE6c

ZOOM MOTOR

THICK

✽

1

(SD1)

(SD2)

✽

2

CCD

NOTE6a

SHIELD CASE

CCD BOARD

ASSEMBLY

NOTE6a,b
BASE ASSEMBLY

SPACER

1-10

Fig. 1-6-1

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

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 pulled­out 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 assem­bly 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 assem­bly. 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)

DRUM

REEL DISK

(SUP)

1

REEL DISK

CAPSTAN

MOTOR

2

3

4

(TU)

Fig. 1-7-1

1-11

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

1

2

345

✻✻✻✻

✻ ✻

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

Table 1-8-1

1-12

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.

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):

@@@@

UNIT IN

E01

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.

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 ele­ment).

3. No drum control voltage is supplied to the MDA.

4. No power is supplied to the DRUM MDA.

– –

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 CAPST AN EMG is detected in the
STILL/FF/REW mode.

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.)

Table 1-9-1

(DVC_03)

1-13

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 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.

(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.

(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 reassem­bling, 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.

Step

Part Name

Fig.

Point

Note

Remarks

A Cassette housing assembly T Fig. 2-2-12 3(S1),(L1a)-(L1d) 1a, 1b, 1c, 1d Adjustment

2a
2b
2c
3a

5

(1) (2) (3) (4) (5) (6) (7)

2-1

Reel disk (SUP) assembly T Fig. 2-2-13 (W2) 2a, 2b
Reel disk (TU) assembly T Fig. 2-2-13 (W2) 2a, 2b
Reel cover assembly T Fig. 2-2-13 (S2b),2(S2a),(W2) 2d
Tension arm assembly T Fig. 2-2-14 (W3a) 3b

5

5

5

5 55

2.2 DISASSEMBLY/ASSEMBLY OF MECHANISM

EJECT mode

Back side of deck

ASSEMBLY

2.2.1 General statement

The mechanism should generally be disassembled/assem­bled 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

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.

<Mechanism assembly/Cassette housing assembly>

DC3V

–

+

Motor

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.

<Back side of the mechanism assembly>

Fig. 2-2-1

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.

<EJECT mode>

Fig. 2-2-2 Fig. 2-2-3

<STOP mode>

Fig. 2-2-5

<C IN mode>

<REV mode>

Fig. 2-2-6

<SHORT FF mode>

Fig. 2-2-4

<PLAY mode>

Fig. 2-2-7

2-2

2.2.3 Mechanism timing chart

MODE

PARTS

MAIN CAM (ø10.4)

EJECT

0

C IN

31.7

45.6

SHORT FF

49.5

74.04

129.5

156.6

STOP

169.2

REV

211.5

PLAY

280.3
SUB CAM (ø11)
ENCODER (ø10)

1

ROTARY

ENCODER

CAM SW

<SLIDE DECK>

SLIDE

2

3

C

B

A

0
0

30
33

43.1

47.4

46.8

51.5

70
77

122.5

134.7

SLIDE STARTSLIDE END

148.1

162.9

160
176

200
220

265

291.5

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)

47.2

44.6

49.1

52.0

49.2

54.1

155.5

147.0

161.7

265.0

250.5

275.6

2-3

Table 2-2-1

2.2.4 Disassembly/assembly of mechanism assembly

1. Configuration

Mechanism assembly

A

Cassette housing assembly

2. Procedures for disassembly

A

B

Fig. 2-2-8

Mechanism assembly

Cassette housing assembly

2a 5b

C

Main deck assemblySlide deck assembly

B

Slide deck assembly

7a 8a

7h

C

Fig. 2-2-9

Main deck assembly

11e

2-4

3. Disassembling procedure table

Step

Part Name Fig.

Point

Note

Remarks

A Cassette housing assembly T Fig. 2-2-12 3(S1),(L1a)-(L1d) 1a, 1b, 1c, 1d Adjustment

2a
2b
2c
3a
3b
3c
3d
3e
4a
4b
4c
5a
5b

B

Reel disk (SUP) assembly T Fig. 2-2-13 (W2) 2a, 2b
Reel disk (TU) assembly T Fig. 2-2-13 (W2) 2a, 2b
Reel cover assembly T Fig. 2-2-13 (S2b),2(S2a),(W2) 2d
Tension arm assembly T Fig. 2-2-14 (W3a) 3b
Release guide assembly T Fig. 2-2-14 - 3a
Idler arm assembly T Fig. 2-2-14 (W3b) ­Guide arm assembly T Fig. 2-2-14 - 3a
Pinch roller arm assembly T Fig. 2-2-14 (W3a) ­Cleaner arm assembly T Fig. 2-2-15 (L4a) 4a
Slant pole arm assembly T Fig. 2-2-15 (W4),(L4b),(P4a),(P4b) 4b
Drum assembly T Fig. 2-2-15 3(S4) ­Guide roller (S) assembly T Fig. 2-2-16 (P5) 5a
Rail assembly T Fig. 2-2-16 3(W5a), (W5b) 5b, 5c

Slide deck assembly /C Main deck assembly

T Fig. 2-2-17 (W6),(L6a)-(L6d) 6a, 6b (Adjustment)

B Slide deck assembly

7a
7b
7c
7d
7e

7f
7g
7h

Loading brake assembly T Fig. 2-2-18 (W7),(L7a),(P7a) 7e Adjustment
Guide pin (SUPPLY) T Fig. 2-2-18 (S7a) ­Pad arm assembly T Fig. 2-2-18 (W7),(L7b),(P7b) 7d
Slide guide plate assembly T Fig. 2-2-18 (S7b) 7c Adjustment
Collar T Fig. 2-2-18 - 7a
Collar T Fig. 2-2-18 - 7a
Sub brake assembly T Fig. 2-2-18 (W7),(L7c),(P7c) 7b
Control plate assembly T Fig. 2-2-18 2(W7),(L7d),(P7d) 7b

C Main deck assembly

8a
8b
8c
9a
9b
9c
9d
9e

9f

10a
10b
10c
10d
10e
11a
11b
11c
11d
11e

Tension lever assembly T Fig. 2-2-19 - 8c
Slide lever assembly T Fig. 2-2-19 - 8b
Brake control lever assembly T Fig. 2-2-19 - 8a
Loading guide T Fig. 2-2-20 (S9) ­Timing belt T Fig. 2-2-20 - 9b
Center gear assembly T Fig. 2-2-20 - ­Motor bracket assembly T Fig. 2-2-20 2(S9) 9a
Worm wheel T Fig. 2-2-20 (W9) - (Phase adjustment)
Gear holder T Fig. 2-2-20 (S9) ­Main cam gear T Fig. 2-2-21 (S10) 10b Phase adjustment
Brake control plate T Fig. 2-2-21 (L10) 10b Phase adjustment
Rotary encoder T Fig. 2-2-21 (S10),(W10a) 10a Phase adjustment
Connect gear T Fig. 2-2-21 (W10a) - (Phase adjustment)
Reel drive pulley assembly T Fig. 2-2-21 (W10b) ­Catcher (T) assembly T Fig. 2-2-22 2(S11) ­Capstan motor T Fig. 2-2-22 2(S11) ­Charge arm assembly T Fig. 2-2-22 (W11) 11
Sub cam gear T Fig. 2-2-22 (S11) - Phase adjustment
PWB holder B Fig. 2-2-22 2(S11) -

2-5

Table 2-2-2

5b
9e

10c

8a

9f

10d

3a
7c
2a

BSlide deck

assembly

9d 5a 4c 4a 4b

11b 11a

7b 7a 7d 7e 9c 3c 3b 7h 2b

CMain deck

assembly

10e

3d
9a
2c
3e
9b
8c

7f

7g

11e

11d

11c

BSlide deck

assembly

Fig. 2-2-10 Top view

CMain deck

assembly

10a

10b

8b

Fig. 2-2-11 Bottom view

2-6

2.2.5 Disassembly/assembly

1.

A Cassette housing assembly

(L1b)

1

(S1)

2

(S1)

(L1b)

(L1d)

(L1c)

Note 1c

Cassette

A

housing
assembly

(L1a)

Note 1b

Slide deck assembly

/Main deck assembly

3

(S1)

(L1a)

<STOP mode>

<EJECT mode>

<PLAY 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.

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 compo­nent parts, check the mecha­nism operation in the PLAY
mode.
For details of checking method,
refer to “2.2.8 assembling slide
deck assembly and main deck
assembly”.

Fig. 2-2-12

2a

2. Reel disk (SUP) assembly

2b

Reel disk (TU) assembly

2c

Reel cover assembly

(W2)

Note 2b

(W2)

2a

4

(S2a)

6

(S2b)

5

(S2a)

2c

Note 2a

Note 2c

Note 2a

Fig. 2-2-13

2b

Note 2b

(W2)

Note 2c

Slide deck assembly

/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.

(SUP) (TU)

Note 2c:

When removing the reel cover assembly, pay heed to the 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 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).

2-7

3. Tension arm assembly/ Release guide assembly

3c

Idler arm assembly/ Guide arm assembly

3e

Pinch roller arm assembly

3b3a

3d

(W3a)

3d

3a

Note 3a

3b

3c

Note 3a

(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.

Fig. 2-2-14

4a

4. Cleaner arm assembly/

4c

Drum assembly

7

(S4)

9

(S4)

4c

4b

Slant pole arm assembly

8

(S4)

4a

(L4a)

Note 4a

Note 4b

(P4b)

(P4a)

(W4)

4b

(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. 2-2-15

2-8

5a 5b

5. Guide roller (SUPPLY) assembly/

Rail assembly

(W5b)

5b

5a

(W5a)

(W5a)

Fig. 2-2-16

(P5)

Note 5a

Note 5b

(W5a)

Note 5a:

Pay careful attention to the spring not to lose it.

Note 5b:

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 5c:

When removing the rail assembly, check to see if the collar is
securely set in the arm groove.

Note 5c

B Slide deck assembly/ C Main deck assembly

6.

(L6a)

(W6)

BSlide deck assembly

(L6b)

Note 6a

(L6d)

CMain deck
assembly

(L6c)

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/ Slide lever assembly
Brake control lever assembly

8c

For reassembling those components, refer to Fig. 2-2-19 on
page 2-10.

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

1mm

2-9

Fig. 2-2-17

Note 7b

7a

7. Loading brake assembly/ Guide pin (S)

7c

Pad arm assembly/

7e

Collar/ Collar/ Sub brake assembly

7h

Control plate assembly

7f

Slide guide plate assembly

7g

(W7)

(P7b)

10

(S7a)

7b

7d

Note 7d

7c

11

(S7b)

7b

Note 7c

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
assembly.

‹

part of the sub brake

(P7a)

7a

Note 7e

(P7d)

(L7b)

(W7)

(W7)

7e

7f

Note

7a

(W7)

(P7c)

Note 7b

7h

(L7a)

(L7d)

Fig. 2-2-18

8. Tension lever assembly/ Slide lever assembly

8a

8c

Brake control lever assembly

Note 8c

8a

8b

(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 “2.2.8
Assembling slide deck assembly and main deck as­sembly” on page 2-15.

Note 7d:

The pad arm assembly controls the tension level of the ten­sion arm assembly. For adjustment of the tension arm as­sembly, refer to page 2-8.

Note 7e:

When reinstalling the load brake assembly, slightly lift the
slide deck assembly upwards because the lower part of the
load brake assembly sticks out of the slide deck assembly.

Note 8a, 8b, 8c:

For refitting the respective parts, refer to the following figures

8a 8b

Tension lever assembly Slide lever assembly

Fig. 2-2-19

Brake control lever

8c

assembly

2-10

9a

9. Loading guide/ Timing belt

9c

Center gear assembly/ Motor bracket assembly

9e

Worm wheel/ Gear holder

9b

9b

9f

Note 9b

9d

Note 9a

9d

9c

14

(S9)

(S9)

15

(S9)

(W9)

9e

9f

12

(S9)

13

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.

9a

10a

10. Main cam gear/

10c

Rotary encoder/

10e

Reel drive pulley assembly

(W10a)

16

(S10)

10a

10b

Note

10b

(L10)

Note 10a

Fig. 2-2-20

10b

Brake control plate

10d

Connect gear

17

(S10)

10c

(W10a)

10d

(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.

10a

10b

2-11

Note 10b

Fig. 2-2-21

11. Catcher (T) assembly/ Capstan motor

11a

Charge arm assembly/ Sub cam gear

11c

11e

PWB holder

11b

11d

18

(S11)

19

(S11)

(W11)

Note 11

21

(S11)

11c

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. 2-2-22

23

(S11)

2-12

2.2.6 List of procedures for disassembly

Cassette housing assembly

A

(L1b)

1

(S1)

(L1d)

2

(L1c)

(S1)

10a

10

(W7)

6

(S2b)

(S10)

(P7b)

7c

(P7d)

5

(S2a)

16

(W7)

AA

(W7)

15

(S9)

9f

(W3a)

3a

AA

(W7)

7h

(W2)

2b

(W6)

7d

11

(S7b)

4

(S2a)

8b

AA

10b

(S7a)

7b

(P7a)

7a

(W2)

2a

3

(S1)

(W10a)

10c

8a

BB

(L1a)

(S10)

AA

(W9)

AA

BB

7e

7f

BSlide deck
assembly

9c

7

(W3b)

9e

3b

BB

3c

(W10b)

9b

(W10a)

10d

AA

CMain deck
assembly

7g

5b

10e

(S11)

21

(S11)

3d

(W7)

(W5a)

19

(S11)

20

(P7c)

(W5a)

(S11)

BB

18

(W5b)

(W5a)

5a

(P5)

11a

11b

AA

11d

AA

(P4b)

12

(S9)

8c

(S11)

(S9)

9

(S4)

9a

22

14

(S4)

4a

(W11)

9d

7

(P4a)

3e

13

(S9)

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

2-13

(S11)

Fig. 2-2-23

11e

24

23

(S11)