Jvc GR-D70U, GR-D91U, GR-D30UB, GR-D31U, GR-D30U User Manual

4.5 (2)

SERVICE MANUAL

DIGITAL VIDEO CAMERA

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

DC 7.2 V

 

(Using battery pack)

 

 

 

 

 

 

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

 

(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

Weight

pushed back in)

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

Operating temperature

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

: 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

 

matrix system (GR-D90)

 

2.5" diagonally measured, LCD panel/TFT active

Viewfinder

matrix system (GR-D70/D30)

: Electronic viewfinder with 0.24" black/white LCD

Speaker

: Monaural

 

 

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

 

48 kHz 2-channel (16-bit)

 

: Mini DV cassette

 

Tape speed

: SP : 18.8 mm/s

 

Maximum recording time

 

LP : 12.5 mm/s

 

: 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*

 

C : 0.29 V (p-p), 75 Ω , analog

 

: Y : 0.8 V (p-p) -1.2 V (p-p), 75 Ω

, analog

AV

 

C : 0.2 V (p-p) -0.4 V (p-p), 75 Ω

, analog

 

 

 

 

 

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

 

 

 

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

2.6ASSEMBLY 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

MODEL NUMBER

GR-D30UB

GR-D30US

GR-D31US

GR-D70US

GR-D90UB

GR-D90US

GR-D91US

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

YES

YES

YES

YES

 

 

 

 

(CARD Slot only)

(MMC 8MB)

(MMC 8MB)

(MMC 8MB)

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

YES

YES

 

 

 

 

 

(MMC 8MB)

(MMC 8MB)

(MMC 8MB)

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

1-2 (No.86722)

SECTION 1

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.

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-

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

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.

25

Crimping tool

1.

 

2.

 

0

 

5.5

Fig.1-1-6

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

Not easily pulled free

Crimped at approx. center

of metal sleeve

 

 

Conductors extended

Wire insulation recessed more than 4 mm

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.

Fig.1-1-8

(4)Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).

Measuring Method : (Power ON)

Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig.1-1-9 and following Fig.1-1-12.

 

 

a

b

Externally

Z

A

c

 

 

 

exposed

V

 

 

accessible part

 

 

 

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.1-1-10

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)

SECTION 2

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

PART

Fig.

POINT

NOTE

No.

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[1]

TOP COVER ASSEMBLY

Fig.C1

S1,2(L1)

 

 

-

 

[2]

UPPER ASSEMBLY

Fig.C2-1

S2a,2(S2b),3(S2c)

 

 

-

 

 

 

(Inc. VF ASSEMBLY,

 

 

2(S2d),S2e,S2c

 

 

 

 

 

 

SPEAKER/MONITOR)

 

 

L2,CN2a,b

 

 

 

 

[8]

VF ASSEMBLY

Fig.C2-2

2(S8),L8,CN8a

 

 

NOTE 8a

 

 

 

 

 

 

 

 

 

NOTE 8b

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

(2)

(3)

(4)

(5)

(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.

 

 

CONNECTOR

 

Pin No.

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN2a

MAIN

CN101

 

MONIBW

CN761

40

CN2b

MAIN

CN103

 

MINIBW

CN762

10

 

 

 

 

 

 

 

Remove the parts marked in .

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.

Flat wire

Connector

Fig.2-1-1

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

Flat wire

Connector

Fig.2-1-2

2.1.5 Tools required for disassembly and assembly

1

Torque driver

2

Bit

YTU94088

YTU94088-003

 

 

3

Tweezers

4

Chip IC replacement jig

 

P-895

 

PTS40844-2

5

Cleaning cloth

 

 

KSMM-01

 

 

 

 

 

 

 

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]TOP COVER ASSEMBLY

[2]UPPER ASSEMBLY (Inc. VF ASSEMBLY,

SPEAKER/MONITOR)

[8]VF ASSEMBLY

[9]COVER(UPPER)

[10]MONITOR ASSEMBLY

[11]MONI-BW BOARD ASSEMBLY

[12]SPEAKER

[3]FRONT COVER ASSEMBLY

(Inc.MIC)

[4]MIC

[5]COVER(ZOOM)

[6]REAR UNIT

[7]LOWER ASSEMBLY

2.2.2

Disassembly method

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STEP

 

 

PART

 

 

Fig.

POINT

 

 

 

NOTE

 

No.

 

 

 

 

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[1]

 

TOP COVER ASSEMBLY

 

Fig.C1

S1,2(L1)

 

 

-

 

[2]

 

UPPER ASSEMBLY

 

 

Fig.C2-1

S2a,2(S2b),3(S2c)

 

 

-

 

 

 

(Inc. VF ASSEMBLY,

 

 

 

2(S2d),S2e,S2c

 

 

 

 

 

 

 

SPEAKER/MONITOR)

 

 

 

L2,CN2a,b

 

 

 

 

 

[8]

 

VF ASSEMBLY

 

 

Fig.C2-2

2(S8),L8,CN8a

 

 

NOTE 8a

 

 

 

 

 

 

 

 

 

 

 

 

NOTE 8b

 

[9]

 

COVER(UPPER)

 

 

Fig.C2-3

2(S9),L9

 

 

-

 

/[10]

 

MONITOR ASSEMBLY

 

 

 

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

 

NOTE 10a

 

 

 

 

 

 

 

 

 

 

 

 

NOTE 10b

 

[11]

 

MONI-BW BOARD ASSEMBLY

Fig.C2-4

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

 

 

NOTE 11a

 

/[12]

 

SPEAKER

 

 

 

 

BKT(HINGE),KNOB(SLIDE)

 

NOTE 11b

 

 

 

 

 

 

 

 

 

 

 

 

NOTE 11c

 

[3]

 

FRONT COVER ASSEMBLY

 

Fig.C3

COVER(JACK),S3,L3a,L3b

 

 

NOTE 3

 

/

 

(Inc.MIC)

 

 

 

 

CN4

 

 

 

 

 

[4]

 

MIC

 

 

 

 

 

S4

 

 

 

 

 

[5]

 

COVER(ZOOM)

 

 

Fig.C4

S5a,3(S5b),2(L5)

 

 

-

 

/[6]

 

REAR UNIT

 

 

 

 

CN6,S6

 

 

 

 

 

/[7]

 

LOWER ASSEMBLY

 

 

 

CN7a,b,S7a,3(S7b)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONN.

 

 

CONNECTOR

 

 

 

Pin No.

 

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN2a

MAIN

CN101

 

 

 

MONI-BW

CN761

 

40

 

CN2b

MAIN

CN103

 

 

 

MONI-BW

CN762

 

10

 

CN8a

MONI-BW

CN763

 

 

 

VF ASSEMBLY

-

 

 

20

 

CN10a

MONI-BW CN765

 

 

 

BL-2.5/3.5

-

 

 

32

 

CN4

 

 

MAIN

CN106

 

 

 

MIC

-

 

 

5

 

CN6

 

 

MAIN

CN104

 

 

 

REAR UNIT

-

 

 

11

 

CN7a

MAIN

CN102

 

 

 

JACK

CN501

 

22

 

CN7b

MAIN

CN109

 

 

 

ZOOM UNIT

-

 

 

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)

Jvc GR-D70U, GR-D91U, GR-D30UB, GR-D31U, GR-D30U User Manual

1

[1]

 

 

 

 

 

 

 

(S1)

 

c

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN8a

 

 

 

 

 

 

L1

 

L8

 

 

 

 

 

 

 

 

 

 

 

 

NOTE 8b

 

 

 

 

 

 

 

 

[8]

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

c

(S8)

 

 

 

 

 

 

 

NOTE 8a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

(S8)

 

Fig.C1

 

 

Fig.C2-2

 

 

 

 

 

BOTTOM SIDE

 

 

 

 

 

 

 

2

3

4

5

6

 

 

 

 

(S2a) (S2b) (S2b) (S2c) (S2c)

 

 

c

 

REAR SIDE 8

 

9

 

 

 

 

 

 

(S2d)

 

(S2d)

 

 

 

 

 

[2]

 

 

 

 

 

 

 

 

([8]-[12])

10

 

 

 

 

 

a

a

(S2e)

 

 

 

 

 

 

 

 

 

 

 

b

b

TOP SIDE

 

 

 

 

 

CN2b

 

 

 

 

CN2a

 

 

11

 

 

 

 

 

 

 

(S2c)

 

 

 

 

 

7

 

 

 

 

 

 

 

 

(S2c)

 

 

 

 

 

 

L2

 

 

 

 

 

 

 

 

 

 

Fig.C2-1

 

 

 

 

 

(No.86722)1-7

[9]

 

 

 

L.CASE SIDE

 

 

 

 

 

COVER

L9

 

 

 

 

(JACK)

 

NOTE 10a

 

 

 

 

 

 

 

 

18

16

 

 

 

28

(S10b)

(S10a)

 

 

 

(S3)

19

 

d

 

 

(S10b)

17

 

 

 

 

 

 

 

L3b

[10]

(S10a)

 

 

 

 

 

[3]([4])

 

NOTE 10b

 

 

14

 

L10

 

 

 

 

 

 

(S9)

28

 

 

 

 

 

 

 

 

 

 

 

 

 

d

(S3)

29

 

 

 

 

 

 

 

 

[4]

(S4)

 

 

15

CN10a

e

 

 

(S9)

 

CN4

 

 

 

 

e

0.147N.m(1.5kgf.cm)

 

 

 

OP BLOCK ASSEMBLY

 

 

 

 

 

 

 

L3a

NOTE 3

 

Fig.C2-3

 

 

Fig.C3

 

22

20

 

 

 

 

(S11a)

 

 

 

21

(S11b)

 

 

 

 

 

 

 

 

 

(S11a)

 

 

 

 

 

23

 

 

 

BKT(HINGE)

(S11b)

 

 

NOTE11c

[11]

KNOB(SLIDE)

[12]

24

NOTE11b

 

(S11c)

25

(S11c) 26(S11c)

27 (S11c)

NOTE 11a

Fig.C2-4

1-8 (No.86722)

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