JVC GR-D30UB, GR-D31US, GR-D90UB Schematic

SERVICE MANUAL

DIGITAL VIDEO CAMERA

86722200304

GR-D30UB,GR-D30US,GR-D31US,

GR-D70US,GR-D90UB,GR-D90US,GR-D91US

For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).

SPECIFICATION (The specifications shown pertain specifically to the model GR-D30US, GR-D70US, GR-D90US)

Camcorder

General

Power supply : DC 11.0 V (Using AC Adapter)

Power consumption
LCD monitor off,
viewfinder on : Approx. 3.4 W
LCD monitor on,
viewfinder off : Approx. 4.7 W
Dimensions
(W x H x D) : 76 mm x 94 mm x 143 mm

Weight : Approx. 550 g (1.3 lbs) (GR-D90)

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 : 1/6" CCD
Lens : F 1.6, f = 2.7 mm to 43.2 mm, 16:1 power zoom lens
Filter diameter : Ø37 mm
LCD monitor : 3.5" diagonally measured, LCD panel/TFT active

Viewfinder : Electronic viewfinder with 0.24" black/white LCD
Speaker : Monaural

DC 7.2 V (Using battery pack)

(3" x 3-3/4" x 5-11/16") (GR-D90)
69 mm x 94 mm x 143 mm
(2-3/4" x 3-3/4" x 5-11/16") (GR-D70/D30)
(with the LCD monitor closed and the viewfinder
pushed back in)

Approx. 525 g (1.2 lbs) (GR-D70/D30)

matrix system (GR-D90)

2.5" diagonally measured, LCD panel/TFT active
matrix system (GR-D70/D30)

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),

Cassette : Mini DV cassette
Tape speed : SP : 18.8 mm/s

Maximum recording time : SP : 80 min.
(using 80 min. cassette) LP : 120 min.

Digital Still Camera Function

Storage media : SD Memory Card/MultiMediaCard
Compression system : JPEG (compatible)
File size : 2 modes (1024 x 768 pixels, 640 x 480 pixels)
Picture quality : 2 modes (FINE/STANDARD)
Approximate number of
storable images : pg. 18.

Connectors

S-Video
Output : Y : 1 V (p-p), 75 Ω, analog

Input* : Y : 0.8 V (p-p) -1.2 V (p-p), 75 Ω, analog

AV
Video output : 1 V (p-p), 75 Ω, analog
Video input* : 0.8 V (p-p) -1.2 V (p-p), 75 Ω, analog
Audio output : 300 mV (rms), 1 kΩ, analog, stereo
Audio input* : 300 mV (rms), 50 kΩ, analog, stereo
DV
Output : 4-pin, IEEE 1394 compliant
Input : 4-pin, IEEE 1394 compliant
USB* :5-pin

* GR-D90/D70 only

AC Adapter

Power requirement
U.S.A and Canada : AC 120 V ~, 60 Hz
Other countries : AC 110 V to 240 V ~, 50 Hz/60 Hz
Output : DC 11 V , 1 A

48 kHz 2-channel (16-bit)

LP : 12.5 mm/s

C : 0.29 V (p-p), 75 Ω, analog
C : 0.2 V (p-p) -0.4 V (p-p), 75 Ω, analog

Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject

to change without notice.

GR-D30UB,GR-D30US,GR-D31US,GR-D70US,GR-D90UB,GR-D90US,GR-D91US M3D123,M3D143,M3D127,M3D147

COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.

No.86722

2003/04

TABLE OF CONTENTS

1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

1.1 SAFTY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

2.1 BEFORE ASSEMBLY AND DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

2.3 ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY . . . . . . . . . .1-10

2.4 ASSEMBLY AND DISASSEMBLY OF [8]VF ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12

2.5 ASSEMBLY AND DISASSEMBLY OF [10]MONITOR ASSEMBLY (CABINET PARTS) . . . . . . . . . . 1-13

2.6 ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLY

/ CCD BOARD ASSEMBLY (CAMERA SECTION AND BOARD ASSEMBLY) . . . . . . . . . . . . . . . . .1-15

2.7 SERVICE NOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16

2.8 TAKE OUT CASSETTE TAPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17

2.9 EMERGENCY DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18

3 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

3.1 PREPARATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

3.2 TOOLS REQUIRED FOR ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

3.3 JIG CONNECTOR CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21

3.4 MECHANISM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22

3.5 ELECTRICAL ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-23

CHARTS AND DIAGRAMS

BOARD INTERCONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

MAIN IF SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

CPU SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

AUDIO SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

DV_MAIN SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

VIDEO I/O SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

CAMERA DSP SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

OP DRIVER SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17

TG SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

REG SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21

DSC SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

MONI-BW SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

BL-2.5/BL-3.5 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27

CCD SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29

JACK SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-30

PREMDA IF SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

MDA SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

PRE/REC SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

B/W-VF SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-37

ZOOM UNIT SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-38

MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39

COMPONENT PARTS LOCATION GUIDE <MAIN> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43

COMPONENT PARTS LOCATION GUIDE <PREMDA> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-44

PREMDA CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-45

MONI-BW CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-49

BL-2.5 CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-49

BL-3.5 CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-49

CCD CIRCUIT BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-50

JACK CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-51

B/W-VF CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51

VIDEO BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-53

POWER SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-57

VOLTAGE CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59

PARTS LIST

1. EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

1.1 PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

1.2 FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

1.3 MECHANISM ASSEMBLY <M3> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

1.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

1.5 MONITOR ASSEMBLY (2.5 INCH) <M5>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

1.6 MONITOR ASSEMBLY (3.5 INCH) <M5>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

2. PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

LCD MONITOR 2.5 INCH 2.5 INCH 3.5 INCH 2.5 INCH 3.5 INCH 3.5 INCH 3.5 INCH
REMOTE CONTROL UNIT NO NO NO RM-V718U NO RM-V718U RM-V717U
BATTERY (for REMOTE CONTROL UNIT) NO NO NO CR2025 NO CR2025 AAA x2
DIGITAL INTERFACE NO NO NO USB USB USB USB
ANALOG INPUT NO NO NO YES YES YES YES
DSC FLASH MEMORY(MEMORY CARD) NO NO NO

EDITING CABLE NO NO NO NO NO NO YES
USB CAULE NO NO NO NO YES YES YES
MEMORY CARD NO NO NO NO YES

CD-ROM NO NO NO YES YES YES YES
EDITING CABLE NO NO NO NO NO NO YES
USB NO NO NO YES YES YES YES

MODEL NUMBER GR-D30UB GR-D30US GR-D31US GR-D70US GR-D90UB GR-D90US GR-D91US

YES

(CARD Slot only)

YES

(MMC 8MB)

(MMC 8MB)

YES

(MMC 8MB)

YES

(MMC 8MB)

YES

(MMC 8MB)

YES

(MMC 8MB)

1-2 (No.86722)

SECTION 1

r

e

PRECAUTIONS

1.1 SAFTY 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.

1.1.1 Precautions during Servicing

(1) Locations requiring special caution are denoted by labels

and inscriptions on the cabinet, chassis and certain parts of
the product.When performing service, be sure to read and
comply with these and other cautionary notices appearing in
the operation and service manuals.

(2) Parts identified by the symbol and shaded ( ) parts

are critical for safety.
Replace only with specified part numbers.

NOTE :

Parts in this category also include those specified to
comply 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:

• Wires covered with PVC tubing

• Double insulated wires

• High voltage leads

(5) Use specified insulating materials for hazardous live parts.

Note especially:

• Insulation Tape

• PVC tubing

•Spacers

• Insulation sheets for transistors

• Barrier

(6) When replacing AC primary side components (transformers,

power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.

quently, 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.

(12) Crimp type wire connector

In such cases as when replacing the power transformer in
sets where the connections between the power cord and
power trans former primary lead wires are performed using
crimp type connectors, if replacing the connectors is un­avoidable, in order to prevent safety hazards, perform care­fully and precisely according to the following steps.

• Connector part number :E03830-001

• Required tool : Connector crimping tool of the proper
type which will not damage insulated parts.

• Replacement procedure

a) 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.1-1-3

b) 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.1-1-4

c) Align the lengths of the wires to be connected. Insert

the wires fully into the connector.

Metal sleeve

Fig.1-1-1

(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.1-1-2
(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. Conse-

Connector

Fig.1-1-5

d) As shown in Fig.1-1-6, use the crimping tool to crimp

the metal sleeve at the center position. Be sure to
crimp fully to the complete closure of the tool.

1.2
5

2

.0

5.5

Crimping tool

Fig.1-1-6

e) Check the four points noted in Fig.1-1-7.

Not easily pulled free

Wire insulation recessed

more than 4 mm

Crimped at approx. cente

of metal sleev

Conductors extended

Fig.1-1-7

(No.86722)1-3

1.1.2 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 Fig.1-1-11 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 Fig.1-1-11 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 Fig.1-1-9 and following Fig.1-1-12.

ab

Externally
exposed
accessible part

Z

V

c

A

Fig.1-1-9

(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 Fig.1-1-10 and grounding
specifications.

Fig.1-1-8

Fig.1-1-10

Fig.1-1-11

Fig.1-1-12

NOTE :

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

1-4 (No.86722)

SPECIFIC SERVICE INSTRUCTIONS

2.1 BEFORE ASSEMBLY AND DISASSEMBLY

2.1.1 Precautions

1. Be sure to disconnect the power supply unit prior to mount­ing and soldering of parts.

2. Prior to removing a component part that needs to disconnect
its connector(s) and its screw(s), first disconnect the wire(s)
from the connector(s), and then remove the screw(s).

3. When connecting/disconnecting wires, pay enough atten­tion not to damage the connectors.

4. Be careful in removing or handling the part to which some
spacer or shield is attached for reinforcement or insulation.

5. When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.

6. Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at a torque of

0.088N•m (0.9kgf•cm).

2.1.2 Assembly and disassembly

[Example]

STEP

No.

[1]
[2]

[8]

PART

TOP COVER ASSEMBLY
UPPER ASSEMBLY
(Inc. VF ASSEMBLY,
SPEAKER/MONITOR)
VF ASSEMBLY

Fig.
No.

S1,2(L1)

Fig.C1

S2a,2(S2b),3(S2c)

Fig.C2-1

2(S2d),S2e,S2c
L2,CN2a,b
2(S8),L8,CN8a

Fig.C2-2

POINT

NOTE

NOTE 8a
NOTE 8b

SECTION 2

2.1.4 Disconnection of connectors (Wires)

Pull both ends of the connector in the arrow direction, remove the
lock and disconnect the flat wire.

Extend the locks in the direction of the arrow for unlocking and
then pull out the wire. After removing the wire, immediately re­store the locks to their original positions because the locks are
apt to come off the connector.

-

-

Flat wire

Connector

Fig.2-1-1

Flat wire

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

(1) Order of steps in Procedure

When reassembling, preform the step(s) in the reverse
order. These numbers are also used as the identification
(location) No. of parts Figures.

(2) Part to be removed or installed.
(3) Fig. No. showing Procedure or Part Location.

C = CABINET
D = CAMERA AND BOARD ASSEMBLY

(4) Identification of part to be removed, unhooked, unlocked,

released, unplugged, unclamped or unsoldered.

P= Spring
W= Washer
S= Screw
* = Unhook, unlock, release, unplug or unsolder.
2(S3) = 2 Screws (S3)
CN = Connector

(5) Adjustment information for installation.

2.1.3 Destination of connectors

Two kinds of double-arrows in connection tables respectively

show kinds of connector/wires.

: Flat wire
: Wire

[Example]

CONN.

No.

CN2a

CN2b

MAIN CN101

MAIN CN103

CONNECTOR

MONI BW CN761

MINI BW CN762

Pin No.

40

10

Remove the parts marked in .

Connector

Fig.2-1-2

2.1.5 Tools required for disassembly and assembly

1

3

5

Torque driver

YTU94088

Tweezers

P-895

Cleaning cloth

KSMM-01

2

Chip IC replacement jig

4

Bit

YTU94088-003

PTS40844-2

Fig.2-1-3

(No.86722)1-5

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 replacement of IC.

5.Cleaning cloth

Recommended cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.

2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS

2.2.1 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]

[2]

TOP COVER ASSEMBLY

UPPER ASSEMBLY

(Inc. VF ASSEMBLY,

SPEAKER/MONITOR)

[8]

[9]

[10]

[11]

MONI-BW BOARD ASSEMBLY

[12]

[3]

FRONT COVER ASSEMBLY

VF ASSEMBLY

COVER(UPPER)

MONITOR ASSEMBLY

SPEAKER

(Inc.MIC)

[4]

[5]

[6]

[7]

LOWER ASSEMBLY

MIC

COVER(ZOOM)

REAR UNIT

2.2.2 Disassembly method

STEP

No.

[1]

[2]

[8]

[9]

/[10]

[11]

/[12]

[3]

/

[4]

[5]

/[6]

/[7]

CONN.

No.

CN2a

CN2b

CN8a

CN10a

CN4

CN6

CN7a

CN7b

PART

TOP COVER ASSEMBLY

UPPER ASSEMBLY

(Inc. VF ASSEMBLY,

SPEAKER/MONITOR)

VF ASSEMBLY

COVER(UPPER)

MONITOR ASSEMBLY

MONI-BW BOARD ASSEMBLY

SPEAKER

FRONT COVER ASSEMBLY

(Inc.MIC)

MIC

COVER(ZOOM)

REAR UNIT

LOWER ASSEMBLY

MAIN CN101

MAIN CN103

MONI-BW CN763

MONI-BW CN765

MAIN CN106

MAIN CN104

MAIN CN102

MAIN CN109

Fig.
No.

Fig.C1

Fig.C2-1

Fig.C2-2

Fig.C2-3

Fig.C2-4

Fig.C3

Fig.C4

CONNECTOR

POINT

S1,2(L1)

S2a,2(S2b),3(S2c)

2(S2d),S2e,S2c

L2,CN2a,b

2(S8),L8,CN8a

2(S9),L9

2(S10a),CN10a,2(S10b),L10

2(S11a),2(S11b),4(S11c)

BKT(HINGE),KNOB(SLIDE)

COVER(JACK),S3,L3a,L3b

CN4

S4

S5a,3(S5b),2(L5)

CN6,S6

CN7a,b,S7a,3(S7b)

MONI-BW CN761

MONI-BW CN762

VF ASSEMBLY -

BL-2.5/3.5 -

MIC -

REAR UNIT -

JACK CN501

ZOOM UNIT -

NOTE

-

-

NOTE 8a

NOTE 8b

-

NOTE 10a

NOTE 10b

NOTE 11a

NOTE 11b

NOTE 11c

NOTE 3

-

Pin No.

40

10

20

32

5

11

22

16

Remove the parts marked in .

NOTE 8a:

Take care not to cut the FPC wire when and after removing the
VF ASSEMBLY.

NOTE 8b:

As for disassembly/assembly of [8]VF ASSEMBLY, see 2.4
ASSEMBLY AND DISASSEMBLY OF [8] VF ASSEMBLY.

NOTE 10a:

Take care not to cut the FPC when and after removing the
MONITOR ASSEMBLY.

NOTE 10b:

As for disassembly/assembly of [10] MONITOR ASSEMBLY,
see 2.5 ASSEMBLY AND DISASSEMBLY OF [10] MONITOR
ASSEMBLY.

NOTE 11a:

Before removing the MONI-BW BOARD ASSEMBLY, check
whether MEMORY CARD is inserted or not. If MEMORY
CARD is inserted, pull out the MEMORY CARD before remov­ing the MONI-BW BOARD ASSEMBLY.

NOTE 11b:

Since the SPEAKER is soldered to the MONI-BW BOARD AS­SEMBLY, the SPEAKER should not be separated from the
MONI-BW BOARD ASSEMBLY except when replacing the
SPEAKER.

NOTE 11c:

Take care not to lose the KNOB(SLIDE). When attaching the
KNOB(SLIDE), attach the KNOB(SLIDE) in a proper position.

NOTE 3:

After removing the FRONT COVER ASSEMBLY, OP BLOCK
ASSEMBLY is not covered with anything. Take care not to
damage the OP BLOCK ASSEMBLY when and after removing
the FRONT COVER ASSEMBLY.

1-6 (No.86722)

1

(S1)

Fig.C1 Fig.C2-2

[1]

L1

c

CN8a

L8

BOTTOM SIDE

13

(S8)

NOTE 8b

12

(S8)

c

NOTE 8a

[8]

b

CN2a

L2

a

CN2b

2

(S2a)3(S2b)

c

REAR SIDE

4

(S2b)5(S2c)6(S2c)

8

(S2d)

9

(S2d)

[2]

([8]-[12])

a

b

7

(S2c)

10

(S2e)

TOP SIDE

11

(S2c)

Fig.C2-1

(No.86722)1-7

[9]

L9

L.CASE SIDE

COVER

(JACK)

NOTE 10a

18

(S10b)

19

(S10b)

[10]

NOTE 10b

L10

0.147N.m(1.5kgf.cm)

21

(S11a)

16

(S10a)

17

(S10a)

d

14

(S9)

d

[3]

28

(S3)

28

(S3)

([4])

29

(S4)

15

(S9)

CN10a

[4]

e

OP BLOCK ASSEMBLY
NOTE 3

L3a

Fig.C2-3 Fig.C3

22

(S11b)

20

(S11a)

L3b

e

CN4

23

(S11b)

[12]

NOTE11b

Fig.C2-4

BKT(HINGE)

NOTE11c
KNOB(SLIDE)

NOTE 11a

[11]

24

(S11c)

25

(S11c)

26(S11c)

27

(S11c)

1-8 (No.86722)

[7]

L5

30

(S5a)

[5]

f

h

CN7a

(S7b)

38

g

f

CN7b

(S7b)

35

(S7a)

h

36

37

(S7b)

33

(S5b)

32

(S5b)

31

(S5b)

g

CN6

[6]

34

(S6)

Fig.C4

(No.86722)1-9

2.3 ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY

2.3.1 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.

NOTE:

Please see Service Manual No. 86700 (MECHANISM ASSY).

2

(S1)

[1]

MAIN BOARD ASSEMBLY

[2]

[3]

[4]

OP BLOCK ASSEMBLY

[5]

CCD BOARD ASSEMBLY

PREMDA BOARD ASSEMBLY

MECHANISM ASSEMBLY

2.3.2 Disassembly method

STEP

No.

[1]

[2]/[5]

[3]

CONN.

No.

CN1a

CN1b

CN1c

CN1d

CN3a

CN3b

CN3c

CN3d

CN3e

CN3f

PART

MAIN BOARD ASSEMBLY

OP BLOCK ASSEMBLY

/ CCD BOARD ASSEMBLY

PREMDA BOARD ASSEMBLY

MAIN CN108

MAIN CN107

MAIN CN111

MAIN CN110

PREMDA CN406

PREMDA CN405

PREMDA CN404

PREMDA CN402

PREMDA CN403

PREMDA CN407

Fig.
No.

Fig.D1

Fig.D2

Fig.D3

CONNECTOR

POINT

CN1a,b,2(S1),CN1c,d

S2,L2

2(S3a),L3,SHIELD COVER(PR)

CN3a,b,c,d,e,f,2(S3b)

3(S3c),BKT(MECHA)

OP BLOCK ASSEMBLY CN501

CCD CN5001

PREMDA CN408

PREMDA CN401

SENSOR -

CAPSTAN MOTOR -

DRUM MOTOR -

HEAD -

LOADING MOTOR -

ROTARY ENCODER -

NOTE

-

NOTE 2

-

Pin No.

24

20

40

40

16

18

11

8

6

6

Remove the parts marked in .

NOTE 2:

As for disassembly/assembly of [2] OP BLOCK ASSEMBLY,
see 2.6 ASSEMBLY AND DISASSEMBLY OF [2] OP BLOCK
ASSEMBLY.

CN1b

1

(S1)

CN1a

CN1d

CN1c

[1]

Fig.D1

NOTE[2]

[2]

([5])

L2

1-10 (No.86722)

3

(S2)

Fig.D2

[4]

BKT(MECHA)

PREMDA BOARD ASSEMBLY

CN3d

CN3b

CN3c

CN3a

CN3e

CN3f

0.069N.m (0.7kgf.cm)

0.078N.m (0.8kgf.cm)

8

(S3c)

10

(S3c)

Fig.D3

9

(S3c)

6

(S3b)

[3]

7

(S3b)

SHIELD COVER

(PR)

4

L3

(S3a)

5

(S3a)

(No.86722)1-11

2.4 ASSEMBLY AND DISASSEMBLY OF [8]VF ASSEMBLY

2.4.1 Disassembly of VF ASSEMBLY

(1) Remove the EYE CUP.
(2) Remove the four screws (1 to 4) and then remove the COV-

ER (VF).

(3) Remove the two screws (5 and 6) and then remove the

FPC BOARD from the hook attaching the FPC BOARD.

NOTE 8a:

During the procedure, be careful not to damage the FPC.
When attaching the SW BOARD ASSEMBLY, attach the
SW BOARD ASSEMBLY so that the SW BOARD AS­SEMBLY comes upwards.

(4) Remove the four screws (7 to 10), and then pull out and re-

move the FPC from the VF HINGE ASSEMBLY.

NOTE 8b:

During the procedure, be careful not to damage the FPC

and the SWITCH.
(5) Remove the five screws (11 to 15).
(6) Remove the UPPER CASE(VF) R.
(7) Remove the UPPER CASE(VF) F and then pull out the

LENS SA and the LCD UNIT ASSEMBLY with the FPC.

NOTE 8c:

In attaching the LCD UNIT ASSEMBLY, put the projec-

tions of the LCD UNIT ASSEMBLY in the slots of the

BOTTOM CASE(VF). Put the STOPPER of the FPC in-

side the BOTTOM CASE(VF). In attaching the UPPER

CASE(VF) F and the UPPER CASE(VF) R, attach the

UPPER CASE(VF) F first and then the UPPER

CASE(VF) R and be careful to keep the FPC inside the

BOTTOM CASE(VF).

EYE CUP

EYE CUP

NOTE8b

(S8a)

1

(S8b)

2

(S8a)

5

(L8a)

FPC

NOTE8a

6

(S8b)

7

(S8a)

COVER(VF)

3

(S8a)

(S8a)

FPC

(S8a)

4

8

2.4.2 Disassembly of the LENS SA

(1) Remove the LEVER(LENS).
(2) Remove the SHEET(LENS).
(3) Remove the LENS ASSEMBLY from the GUIDE

LENS(VF).

NOTE 8d:

Be careful not to lose the SPRING(LENS).

<LENS SA>

LENS ASSEMBLY

SHEET(LENS)

SPRING(LENS)

NOTE8d:

GUIDE LENS(VF)

LCD UNIT ASSEMBLY

FPC

LEVER(LENS)

Fig.2-4-2

14

(S8c)

UPPER CASE(VF)R

LENS SA

L8b

(S8c)

15

(S8c)

9

VF HINGE
ASSEMBLY

10

(S8c)

12

(S8c)

13

(S8c)

11

(S8c)

L8c

LCD UNIT

ASSEMBLY

Fig.2-4-1

UPPER CASE(VF)F

FPC

NOTE8c

NOTE8c

BOTTOM CASE(VF)

1-12 (No.86722)

2.5 ASSEMBLY AND DISASSEMBLY OF [10]MONITOR ASSEMBLY (CABINET PARTS)

2.5.1 Disassembly of MONITOR ASSEMBLY (2.5 INCH)

NOTE:

Be careful in removing or handling the monitor assembly, es­pecially not to soil or scratch the monitor screen during the dis­assembly procedure.
(1) While removing the four screws (1 to 4) in numerical order

and then disengaging the four hooks (L10a-L10d) in alpha­betical order, open and remove the MONITOR COVER

1

(S10a)

L10a

ASSEMBLY.

(2) Remove the SENSOR BOARD ASSEMBLY from the

MONITOR CASE.

(3) Disconnect the FPC in the connectors CN10a and CN10b

3

(S10b)

in this order, and then remove the MONI.HINGE ASSEM­BLY.

(4) Disconnect the FPC of the LCD MODULE from the connec-

MONI.HINGE
ASSEMBLY

tor CN10c.

(5) Remove one screw (5) and then remove the BL BOARD

ASSEMBLY together with the BACK LIGHT ASSEMBLY.

NOTE 10a:

It depends on the inch size of the monitor assembly

SD10a

whether the backlight is supplied as an assembly or as
separated parts.
In replacing the backlight assembly, see the Parts List.

SENSOR BOARD
ASSEMBLY

NOTE 10b:

Since the BACK LIGHT ASSEMBLY is soldered to the
BL BOARD ASSEMBLY, the BACK LIGHT should not be
separated from the BL BOARD ASSEMBLY except

when replacing them.
(6) Remove the DIFF.SHEET.
(7) Remove the LCD FRAME together with the LCD MODULE.
(8) Remove the SHIELD CASE.

(S10a)

(S10b)

b

L10e

2

L10d

4

CN10b

a

b

MONITOR COVER
ASSEMBLY

L10b

CN10c

SD10b

c

CN10a

L10c

BL-2.5 BOARD
ASSEMBLY

5

(S10a)

NOTE10b

NOTE10a
BACK LIGHT

DIFF. SHEET

:0.069N.m (0.7kgf.cm)

.

:0.098N

m (1.0kgf.cm)

Fig.2-5-1

LCD FRAME

c

LCD MODULE

SHIELD CASE

L10f

a

L10g

MONITOR
CASE

(No.86722)1-13

2.5.2 Disassembly of MONITOR ASSEMBLY (3.5 INCH)

NOTE:

Be careful in removing or handling the monitor assembly, es­pecially not to soil or scratch the monitor screen during the dis­assembly procedure.
(1) While removing the four screws (1 to 4) in numerical order

and then disengaging the four hooks (L10a-L10d) in alpha­betical order, open and remove the MONITOR COVER
ASSEMBLY.

(2) Remove the SENSOR BOARD ASSEMBLY from the

MONITOR CASE.

(3) Disconnect the FPC in the connectors CN10a and CN10b

in this order, and then remove the MONI.HINGE ASSEM­BLY.

(4) Disconnect the FPC of the LCD MODULE from the connec-

tor CN10c.

(5) Remove one screw (5) and then remove the BL BOARD

ASSEMBLY together with the BACK LIGHT.

NOTE 10:

Since the BACK LIGHT is soldered to the BL BOARD
ASSEMBLY, the BACK LIGHT should not be separated
from the BL BOARD ASSEMBLY except when replacing
them.

(6) While removing the five hooks (L10e-L10i) in alphabetical

order, remove the LCD FRAME together with the LCD
MODULE.

(7) Remove the SHIELD CASE.

MONI.HINGE
ASSEMBLY

SENSOR BOARD
ASSEMBLY

L10a

3

(S10b)

1

(S10a)

b

(S10a)

(S10a)

L10d

4

(S10b)

CN10b

5

2

b

a

MONITOR COVER
ASSEMBLY

L10c

L10b

CN10a

BL-3.5 BOARD
ASSEMBLY

CN10c

NOTE10

BACK LIGHT

L10i

L10h

:0.069N.m (0.7kgf.cm)

.

:0.098N

m (1.0kgf.cm)

a

L10g

Fig.2-5-2

LCD FRAME

LCD MODULE

SHIELD CASE

L10e

L10f

MONITOR CASE

1-14 (No.86722)

2.6 ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLY
/ CCD BOARD ASSEMBLY (CAMERA SECTION AND BOARD ASSEMBLY)

2.6.1 Precautions

2.6.3 Assembly of CCD BASE ASSEMBLY and CCD

(1) Take care in handling the CCD IMAGE SENSOR, OP LPF

and lens components when performing maintenance etc.,

(1) Set the OP LPF to the OP BLOCK ASSEMBLY so that the
especially with regard to surface contamination, attached
dust or scratching. If fingerprints are present on the surface
they should be wiped away using either a silicon paper,
clean chamois or the cleaning cloth.

(2) The CCD IMAGE SENSOR may have been shipped with a

protective sheet attached to the transmitting glass. When
replacing the CCD IMAGE SENSOR, do not peel off this
sheet from the new part until immediately before it is
mounted in the OP BLOCK ASSEMBLY.

(3) The orientation of the OP LPF is an important factor for

installation. If there is some marking on the OP LPF, be
sure to note it down before removing and to reassemble it
very carefully as it was referring to the marking.

2.6.2 Disassembly of CCD BOARD ASSEMBLY and CCD
BASE ASSEMBLY

(1) Unsolder the CCD BOARD ASSEMBLY by the 14 points

(SD2) and then remove it.

(2) Remove the two screws (1, 2) and remove the CCD BASE

ASSEMBLY.
(3) Remove the SPACER.
(4) Remove the SHEET.
(5) Remove the OP LPF.

(2) Set the SHEET to the OP LPF not to come off the right

(3) Attach the SPACER to the OP BLOCK ASSEMBLY.
(4) Fasten them together with the two screws (1, 2).
(5) Set the CCD BOARD ASSEMBLY in the CCD BASE

2.6.4 Replacement of service repair parts

The service repair parts for the OP BLOCK ASSEMBLY are as
listed below.
Before replacement of these parts, remove the BRACKET (OP
BLOCK ASSEMBLY) as required.
Take special care not to disconnect any of the FPC wires or
cause any damage due to soldering (excessive heating).

(1) FOCUS MOTOR
(2) ZOOM MOTOR
(3) IRIS MOTOR UNIT

NOTE 2b:

When replacing the FOCUS MOTOR or the ZOOM MOTOR,
solder the FPC at a space of about 1 mm above the terminal
pin.

NOTE 2c:

The IRIS MOTOR UNIT includes the FPC ASSEMBLY and
two sensors.

BOARD ASSEMBLY

OP side touches the OP BLOCK ASSEMBLY.

NOTE 2a:

Pay careful attention to the orientation of the OP LPF.

position.

ASSEMBLY, and then solder it by the 14 points (SD2).

(S2c)

8

(S2c)

SENSOR

CCD BAORD

(SD2)

ASSEMBLY

CCD BASE ASSEMBLY

SPACER

0.078N.m (0.8kgf.cm)

.

0.118N

m (1.2kgf.cm)

11

9

(S2b)

(S2b)

7

IRIS MOTOR UNIT
<NOTE 2b, c>

10

(S2b)

5

(S2b)

OP BLOCK

6

(S2b)

FOCUS MOTOR
<NOTE 2b>

(S2b)

3

<NOTE 2a>

OP LPF

Blue

OP

side

4

(S2b)

CCD

side

SHEET

OP LPF

ZOOM MOTOR
<NOTE 2b>

1

(S2a)

2

(S2a)

Fig.2-6-1

(No.86722)1-15

2.7 SERVICE NOTE

Use the following chart to manage screws

cm)

.

cm)

.

[11] ([12])[2] ([8]-[12]) [8] [10][9]

C2-4C2-1

C2-2 C2-3

[10]

<MONITOR ASSEMBLY>

[2]

[1] [3] [4]

<CAMERA AND BOARD ASSEMBLY>

Symbol No.

D2 D3

D1

12345678910

Place to stick screw

Removing order of screw

Screw tightening torque

Reference drawing (Fig.No.)

Symbol No.

2-5-1,2

12345

Place to stick screw

Removing order of screw

Screw tightening torque

Reference drawing (Fig.No.)

m (0.7kgf

m (1.2kgf

.

.

: 0.118N

: 0.069N

㸉

㸌

cm)

cm)

.

.

m (1.5kgf

m (1.0kgf

.

.

: 0.147N

: 0.098N

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

[1]

<CABINET PART>

Symbol No.

C1

Place to stick screw

Removing order of screw

Screw tightening torque

Reference drawing (Fig.No.)

C4

[3] [4] [5] [6] [7]

Symbol No.

C3

28 29 30 31 32 33 34 35 36 37 38

Place to stick screw

Removing order of screw

Screw tightening torque

Reference drawing (Fig.No.)

[8]

<VF ASSEMBLY>

Symbol No.

2-4-1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Place to stick screw

Removing order of screw

Screw tightening torque

Reference drawing (Fig.No.)

[2]/[5]

<OP BLOCK ASSEMBLY>

Symbol No.

2-6-1

1234567891011

Place to stick screw

Removing order of screw

Screw tightening torque

Reference drawing (Fig.No.)

<NOTE>

cm)

cm)

.

.

m (0.9kgf

m (0.8kgf

.

.

: 0.088N

: 0.078N

1-16 (No.86722)

2.8 TAKE OUT CASSETTE TAPE

NOTE :

The following procedure describes a simplified method of
ejecting the cassette tape in case it is not possible to eject it,
due to an electrical failure.
Be careful not to damage any of the parts or the tape when per­forming repairs or maintenance work.
(1) Remove the Power Unit (battery, DC code, etc.) from the

set.
(2) Open the CASSETTE COVER.
(3) Attach a piece of PVC TAPE at the front of the CASSETTE

HOUSING ASSEMBLY.

NOTE:

This helps prevent the tape from being damaged when
the CASSETTE HOUSING ASSEMBLY is moved up­ward at the unloading end.

(DC3V)

(4) Apply DC 3V to the electrode on the top surface of the

LOADING MOTOR ASSEMBLY to set the MECHANISM
ASSEMBLY to the EJECT mode.
Unloading end is EJECT mode.

(5) If there is any slack tape in the tape transport system, wind

it inside the DVC CASSETTE TAPE by turning the REEL
DISK ASSEMBLY (SUP) from the backside of the SLIDE
DECK ASSEMBLY.

(6) Peel off the PVC TAPE and take out the DVC CASSETTE

TAPE from the CASSETTE HOUSING ASSEMBLY.

NOTE:

Make sure that grease or a similar substance is not at­tached to the surface of the tape.
Similarly, also make sure that grease or a similar sub­stance is not attached on the MECHANISM ASSEMBLY.

CASSETTE COVER

LOADING MOTOR
ASSEMBLY

PVC T

APE

REEL DISK ASSEMBLY (SUP)

CASSETTE HOUSING
ASSEMBLY

Fig.2-8-1

(No.86722)1-17

2.9 EMERGENCY DISPLAY

Example (in case of the error number E01):

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 alter

E01
UNIT IN
SAFEGUARD MODE

nately appear over and over.

• In an emergency mode, all operations except turning on/off the
POWER switch are ineffectual.

LCD

display

E01 LOADING In the case the encoder posi-

Emergency

mode

Details Possible cause

tion is not shifted to the next
point though the loading motor
has rotated in the loading direc­tion for 4 seconds or more. This

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.

error is defined as [E01].

E02 UNLOADING In the case the encoder posi-

tion is not shifted to the next
point though the loading motor
has rotated in the unloading di-

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.

rection for 4 seconds or more.
This error is defined as [E02].

E03 TU & SUP REEL FG In the case no REEL FG is pro-

duced 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 SLW/STILL mode.

E04 DRUM 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 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.

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.

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.

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 ele-

ment).

2. No capstan control voltage is supplied to the 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 locking)

2) The tape is damaged or soiled with grease, etc. (Tape

tangling occurs, etc.)

E01
REMOVE AND
REATTACH BATTERY

1-18 (No.86722)

Fig.2-9-1

SECTION 3

ADJUSTMENT

3.1 PREPARATION

(1) Precaution

This model does not contain adjustment controls (VR).
General deck system, camera system and monitor system
adjustment are not required. However, if MAIN board need
replacement, please use original EEP ROM on to new
board. Then adjustment are not required. And if parts such
as the following need replacement, special computerized
adjustment are required. 3.5.1 Electrical adjustment with
personal computer is setup and it adjusts using a service
support system. Please contact to JVC Service for detail in­formation.

• OP BLOCK ASSEMBLY

• EEP ROM (IC1005 of MAIN board)

• MONITOR / VF ASSEMBLY
In the event of malfunction with electrical circuits, trouble­shooting with the aid of proper test instruments most be
done first, and then commence necessary repair, replace­ment and adjustment, etc.

a) In case of wiring to chip test points for measurement,

use IC clips, etc. to avoid any stress.

b) Since connectors are fragile, carefully handle them in

disconnecting and connecting.

c) Short circuit between operation unit and DECK chas-

sis.

(2) Required test equipment

a) Color TV monitor.
b) AC power adapter

c) Oscilloscope (dual-trace type, observable 100 MHz

or higher frequency)

• It is recommended to use one observable 300 MHz
or higher frequency.

d) Digital voltmeter
e) Frequency counter (with threshold level adjuster)

f) Personal computer

3.2 TOOLS REQUIRED FOR ADJUSTMENT

Alignment tape

1

INF adjustment lens

3

5

7

9

YTU92001B

Camera stand

YTU93079

Gray scale chart

YTU94133A

Jig connector cable

YTU93106B

MC-1

Guide driver (Hexagonal)

2

4

6

8

10

D-770-1.27

INF lens holder

YTU94087

Light box assembly

YTU93096A

Color bar chart

YTU94133C

Extension connector

YTU94145C-30

Communication cable

11

13

YTU93107A

Service support system

YTU94057-67

12

14

Fig.3-2-1

PC cable

QAM0099-002

Cleaning cloth

KSMM-01

(No.86722)1-19

1. Alignment tape

To be used for check and adjustment of interchangeability of
the mechanism.

2. Guide driver (Hexagonal)

To be used to turn the guide roller to adjustment of the linarity
of playback envelope.

3.INF adjustment lens

To be used for adjustment of the camera system. For the us­age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.

4.INF lens holder

To be used together with the Camera stand (6) for operating
the Videocamera 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. For the
usage of the INF lens holder, refer to the Service Bulletin No.
YA-SB-10035.

5.Camera stand

To be used together with the INF adjustment lens holder. For
the usage of the Camera stand, refer to the Service Bulletin
No. YA-SB-10035.

6.Light box assembly

To be used for adjustment of the camera system. For the us­age of the Light box assembly, refer to the Service Bulletin No.
YA-SB-10035.

7.Gray scale chart

To be used for adjustment of the camera system. For the us­age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.

8.Color bar chart

To be used for adjustment of the camera system. For the us­age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.

9. Jig connector cable

Connected to CN105 of the main board and used for electrical
adjustment, etc.

NOTE:

Only some of the connectors in the JIG connector (YTU93106B)
are soldered to wires.
It is desirable that you solder all the connectors to wires before
using the JIG connector (YTU93106B), but you should solder
only the connectors shown in the following JIG connector
schematic diagram to wires because they are used in this
model.
As for the details, see 3.3 JIG CONNECTOR CABLE.

10.Extension connector

Connect this extension connector to the connector of the jig
connector cable for extending the cable connector.

NOTE:

removing the cover (for jig), use this extension connector triple
for connecting the jig connector cable.

11.Communication Cable

Connect the Communication cable between the PC cable and
Jig connector cable when performing a PC adjustment.

12.PC cable

To be used to connect the Videocamera and a personal com­puter with each other when a personal computer issued for ad­justment.

13.Service support system

To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.

14.Cleaning cloth

Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens sur­face.

1-20 (No.86722)

3.3 JIG CONNECTOR CABLE

Nine wires have been soldered to the JIG CONNECTOR CABLE (YTU93106B).
Solder another nine wires to the JIG CONNECTOR CABLE (YTU93106B) to use in this set.
See the JIG CONNECTOR SCHEMATIC DIAGRAM and JIG CONNECTOR BOARD to solder the nine wires.

3.3.1 JIG CONNECTOR SCHEMATIC DIAGRAM

BEFORE AFTER

1

AL_3VSYS

16

CJIG_RST

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17

18

19

20

21

22

23

24

25

26

27

28

29

30

VIDL

VCOM

STH1
CVF_R
CVF_B
V_OUT

GND
MON_R
MON_G

CVF_G

MON_B

MONI_CHG

JLIP_RX

GND

JLIP_TX
PB_CLK

HID1

GND

ATFI

ENV_OUT

MAIN_VCO

DISCRI

I_MTR

IF_TX

EXMOD_0

FS_PLL

MMOD_0
MMOD_1

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

NC
NC
NC
NC

GND

NC

NC
JLIP_RX
JLIP_TX

HID1

NC

MAIN_VCO

NC

NC

NC

NC

NC

NC

NC

NC

NC

MONI_CHG

GND

NC

NC

ENV_OUT

NC

NC

FS_PLL

NC

MAIN CN105 / JIG CONNECTOR JIG CONNECTOR BOARDMAIN CN105 / JIG CONNECTOR JIG CONNECTOR BOARD

1

AL_3VSYS

16

CJIG_RST

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17

18

19

20

21

22

23

24

25

26

27

28

29

30

VIDL

VCOM

STH1
CVF_R
CVF_B
V_OUT

GND
MON_R
MON_G

CVF_G

MON_B

MONI_CHG

JLIP_RX

GND

JLIP_TX
PB_CLK

HID1

GND

ATFI

ENV_OUT

MAIN_VCO

DISCRI

I_MTR
IF_TX

EXMOD_0

FS_PLL

MMOD_0
MMOD_1

NOTE:

The wires shown as are already soldered.
Solder the wires shown as .

1
2
3
4
5
6
7
8
9

10

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

NC

VIDL

STH1

CVF_B

GND

MON_G

MON_B
JLIP_RX
JLIP_TX

HID1

NC

MAIN_VCO

NC
NC
NC
NC

VCOM

CVF_R

NC

MON_R

CVF_G

MONI_CHG

GND

NC
NC

ENV_OUT

NC
NC

FS_PLL

NC

Fig.3-3-1

3.3.2 JIG CONNECTOR BOARD

FOIL SIDE

30

YTU94113-30

21

20

18

17

10

7

6
4

3

2

1

COMPONENT SIDE

NOTE:

Solder wires to 17,
18, 20 and 21.

21

17

20
18

FOIL SIDE

2
4
6

NOTE:

Solder wires to 2, 3,
4, 6 and 7.

COMPONENT SIDE

3

7

YTU

9

4

126

FOIL SIDE

Fig.3-3-2

(No.86722)1-21

3.4 MECHANISM COMPATIBILITY ADJUSTMENT

3.4.1 Tape pattern check

(1) Connect the JIG CONNECTOR CABLE to the set.

As for the connection procedure, JIG CONNECTOR

BOARD and see 3.5 ELECTRICAL ADJUSTMENT.
(2) Remove the COVER(ADJUST)
(3) Play back the compatibility adjustment tape.
(4) While triggering the HID1, observe the waveform of

ENV_OUT.
(5) Confirm that the waveform is free from remarkable level-

down, and entirely parallel and straight.
(6) In case any level-down is observed on the left hand side,

straighten the level by turning the GUIDE ROLLER (SUP)

of the POLE BASE ASSEMBLY.

In case any level-down is observed on the right hand side,

however, straighten the level by turning the GUIDE ROLL-

ER(TU) of the POLE BASE ASSEMBLY.
(7) After adjustment, try the unloading motion once, and con-

firm that the waveform is flat (straight) when the tape has

been played back again.

Moreover, perform readjustment as required.
(8) When the recording has been played back again, play back

the self-recording to confirm that the waveform is flat.

ENV_OUT

HID1

Misalignment of guide
roller height on the
supply side

Fig.3-4-1

Flatten the waveform.

Misalignment of guide roller
height on the take-up side

Fig.3-4-2

GUIDE ROLLER
(SUP)

JIG CONNECTOR CABLE

Refer To 3.3

TO JLIP_RX

TO JLIP_TX

TO GND

TO ENV_OUT

TO HID1

COMMUNICATION CABLEJIG CONNECTOR

RED

WHITE

BLACK

OSCILLOSCOPEJIG CONNECTOR

GUIDE ROLLER (TU)

COVER
(ADJUST)

Fig.3-4-3

1-22 (No.86722)

3.5 ELECTRICAL ADJUSTMENT

3.5.1 Electrical adjustment with personal computer

• Electrical adjustmentis performed by using PERSONAL COMPUTER. As for the connection of cables, see Fig. 3-5-1. Read
README.TXT file to use the software for SERVICE SUPPORT SYSTEM properly.

• Remove the COVER (JIG) to perform adjustment.

COMMUNICATION CABLE JIG CONNECTOR

TO JLIP_RX

RED

TO JLIP_TX

WHITE

TO GND

BLACK

SERVICE SUPPORT SYSTEM

CN105

COVER

(JIG)

JIG CONNECTOR CABLE

EXTENSION CONNECTOR

Removing the cover (for jig), use this extension

NOTE:

connector triple for connecting the jig connector
cable.

RS232C

COM PORT

MENU

COMMUNICATION CABLE

PC CABLE

PERSONAL COMPUTER

Fig.3-5-1

(No.86722)1-23

JVC SERVICE & ENGINEERING COMPANY OF AMERICA

DIVISION OF JVC AMERICAS CORP.

www.jvcservice.com(US Only)

JVC CANADA INC.

Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 [phone]

(No.86722)

Printed in Japan

200304WPC

SCHEMATIC DIAGRAMS

DIGITAL VIDEO CAMERA

GR-D30UB,GR-D30US,GR-D31US,

GR-D70US,GR-D90UB,GR-D90US,GR-D91US

CD-ROM No.SML200304

For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).

SPECIFICATION (The specifications shown pertain specifically to the model GR-D30US, GR-D70US, GR-D90US)

Camcorder

General

Power supply : DC 11.0 V (Using AC Adapter)

Power consumption
LCD monitor off,
viewfinder on : Approx. 3.4 W
LCD monitor on,
viewfinder off : Approx. 4.7 W
Dimensions
(W x H x D) : 76 mm x 94 mm x 143 mm

Weight : Approx. 550 g (1.3 lbs) (GR-D90)

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 : 1/6" CCD
Lens : F 1.6, f = 2.7 mm to 43.2 mm, 16:1 power zoom lens
Filter diameter : Ø37 mm
LCD monitor : 3.5" diagonally measured, LCD panel/TFT active

Viewfinder : Electronic viewfinder with 0.24" black/white LCD
Speaker : Monaural

DC 7.2 V (Using battery pack)

(3" x 3-3/4" x 5-11/16") (GR-D90)
69 mm x 94 mm x 143 mm
(2-3/4" x 3-3/4" x 5-11/16") (GR-D70/D30)
(with the LCD monitor closed and the viewfinder
pushed back in)

Approx. 525 g (1.2 lbs) (GR-D70/D30)

matrix system (GR-D90)

2.5" diagonally measured, LCD panel/TFT active
matrix system (GR-D70/D30)

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),

Cassette : Mini DV cassette
Tape speed : SP : 18.8 mm/s

Maximum recording time : SP : 80 min.
(using 80 min. cassette) LP : 120 min.

Digital Still Camera Function

Storage media : SD Memory Card/MultiMediaCard
Compression system : JPEG (compatible)
File size : 2 modes (1024 x 768 pixels, 640 x 480 pixels)
Picture quality : 2 modes (FINE/STANDARD)
Approximate number of
storable images : pg. 18.

Connectors

S-Video
Output : Y : 1 V (p-p), 75  , analog

Input* : Y : 0.8 V (p-p) -1.2 V (p-p), 75  , analog

AV
Video output : 1 V (p-p), 75  , analog
Video input* : 0.8 V (p-p) -1.2 V (p-p), 75  , analog
Audio output : 300 mV (rms), 1 k , analog, stereo
Audio input* : 300 mV (rms), 50 k , analog, stereo
DV
Output : 4-pin, IEEE 1394 compliant
Input : 4-pin, IEEE 1394 compliant
USB* :5-pin

* GR-D90/D70 only

AC Adapter

Power requirement
U.S.A and Canada : AC 120 V ~, 60 Hz
Other countries : AC 110 V to 240 V ~, 50 Hz/60 Hz
Output : DC 11 V , 1 A

48 kHz 2-channel (16-bit)

LP : 12.5 mm/s

C : 0.29 V (p-p), 75  , analog

C : 0.2 V (p-p) -0.4 V (p-p), 75  , analog

Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject

to change without notice.

GR-D30UB,GR-D30US,GR-D31US,GR-D70US,GR-D90UB,GR-D90US,GR-D91US M3D123,M3D143,M3D127,M3D147

COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.

No.86722SCH

2003/04

CHARTS AND DIAGRAMS

NOTES OF SCHEMATIC DIAGRAM

Safety precautions
The Components identified by the symbol are

critical for safety. For continued safety, replace safety
critical components only with manufacturer's recom­mended parts.

1. Units of components on the schematic diagram

Unless otherwise specified.

1) All resistance values are in ohm. 1/6 W, 1/8 W (refer to
parts list).
Chip resistors are 1/16 W.

K: KΩ (1000Ω), M: MΩ (1000KΩ)

2) All capacitance values are in µF, (P: PF).

3) All inductance values are in µH, (m: mH).

4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts
list).

Note: The Parts Number, value and rated voltage etc. in
the Schematic Diagram are for references only.
When replacing the parts, refer to the Parts List.

2. Indications of control voltage

AUX : Active at high.
AUX or AUX(L) : Active at low.

4. Voltage measurement

1) Regulator (DC/DC CONV) circuits
REC : Colour bar signal.
PB : Alignment tape (Colour bar).
— : Unmeasurable or unnecessary to measure.

4) Indication on schematic diagram
Voltage Indications for REC and PB mode on the sche­matic diagram are as shown below.

REC mode

123

2.5

(5.0)

PB mode

1.8

PB and REC modes
(Voltage of PB and REC modes
are the same)

Note: If the voltages are not indicated on the schematic

diagram, refer to the voltage charts.

5. Signal path Symbols

The arrows indicate the signal path as follows.

NOTE : The arrow is DVC unique object.

Playback signal path
Playback and recording signal path

3. Interpreting Connector indications

1
2

Removable connector

3

1
2

Wire soldered directly on board

3

1

Non-removable Board connector

2
3

1

2

4

Board to Board

3

Connected pattern on board
The arrows indicate signal path

Note: For the destination of each signal and further line
connections that are cut off from the diagram,
refer to "BOARD INTERCONNECTIONS"

Recording signal path
(including E-E signal path)

Capstan servo path
Drum servo path

(Example)

R-Y

Playback R-Y signal path

Y

Recording Y signal path

6. Indication of the parts for adjustments

The parts for the adjustments are surrounded with the circle as
shown below.

7. Indication of the parts not mounted on the circuit board

“OPEN” is indicated by the parts not mounted on the circuit
board.

R216

OPEN

2-1

CIRCUIT BOARD NOTES

1. Foil and Component sides

1) Foil side (B side) :
Parts on the foil side seen from foil face (pattern face)
are indicated.

2) Component side (A side) :
Parts on the component side seen from component face
(parts face) indicated.

2. Parts location guides

Parts location are indicated by guide scale on the circuit board.

LOCATION
IC

Category : IC

Horizontal “A” zone
Vertical “6” zone

(A : Component side)

D : Discrete component)

B : Foil side

C : Chip component

REF No.

IC101 B C 6 A

Note: For general information in service manual, please

refer to the Service Manual of GENERAL INFORMA­TION Edition 4 No. 82054D (January 1994).

2-2