JVC GR-DVL357E Service Manual

SERVICE MANUAL

DIGITAL VIDEO CAMERA

GR-DVL355EG/EK, DVL357EG/EK,

GR-DVL355EG/EK,DVL357EG/EK,DVL555EG/EK,DVL557EG/EK

DVL555EG/EK, DVL557EG/EK

VICTOR COMPANY OF JAPAN, LIMITED VIDEO DIVISION

S40894

No. 86614

SPECIFICATIONS

(The specifications shown pertain specifically to the model GR-DVL150/157/355/357/450/555/557)

Camcorder

For General

Power supply : DC 11.0 V } (Using AC Adapter)

Power consumption

LCD monitor off, viewfinder on : Approx. 4.3 W LCD monitor on, viewfinder off : Approx. 5.3 W Video light : Approx. 3.5 W

Dimensions (W x H x D) : 83 mm x 97 mm x 188 mm

Weight : Approx. 610 g

Operating temperature : 0°C to 40°C Operating humidity : 35% to 80% Storage temperature : –20°C to 50°C Pickup : 1/4" CCD Lens : F 1.8, f = 3.6 mm to 36 mm, 10:1 power zoom lens Filter diameter : ø37 mm LCD monitor : 3.5" diagonally measured, LCD panel/TFT active matrix system

Viewfinder : Electronic viewfinder with 0.44" colour LCD

Speaker : Monaural

For Digital Video Camera

Format : DV format (SD mode) Signal format : PAL standard Recording/Playback format : Video: Digital component recording

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

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

DC 7.2 V } (Using battery pack)

(with the LCD monitor closed and the viewfinder pushed down)

(GR-DVL557/DVL555/DVL450) Approx. 590 g (GR-DVL357/DVL355/DVL157/DVL150)

(GR-DVL557/DVL555/DVL450)

2.5" diagonally measured, LCD panel/TFT active matrix system (GR-DVL357/DVL355/DVL157/DVL150)

(GR-DVL557/DVL555/DVL450) Electronic viewfinder with 0.24" black/white LCD (GR-DVL357/DVL355/DVL157/DVL150)

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

48 kHz 2-channel (16-bit)

LP: 12.5 mm/s

For Digital Still Camera (GR-DVL557/DVL555/DVL357/DVL355 only)

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

with memory card [8 MB] (provided) FINE : 100 STANDARD : 200 with memory card [16 MB] (optional) FINE : 200 STANDARD : 400 with memory card [32 MB] (optional) FINE : 400 STANDARD : 800 with memory card [64 MB] (optional) FINE : 800 STANDARD : 1600

For Connectors

S-Video

Output : Y : 1 V (p-p), 75 Ø, analogue

Input (GR-DVL557 only) : Y : 0.8 V (p-p) – 1.2 V (p-p), 75 Ø, analogue

Video output : 1 V (p-p), 75 Ø, analogue Video input (GR-DVL557 only) : 0.8 V (p-p) – 1.2 V (p-p), 75 Ø, analogue Audio output : 300 mV (rms), 1 kØ, analogue, stereo Audio input (GR-DVL557 only) : 300 mV (rms), 50 kØ, analogue, stereo

Output : 4-pin, IEEE 1394 compliant

Input (GR-DVL557/DVL357/DVL157 only) : 4-pin, IEEE 1394 compliant USB (GR-DVL557/DVL555/DVL357/DVL355 only) : 5-pin PC (DIGITAL PHOTO)

(GR-DVL450/DVL157/DVL150 only) : ø2.5 mm, 3-pole EDIT (GR-DVL557/DVL555/DVL357/DVL355 only) : ø3.5 mm, 2-pole JLIP (GR-DVL450/DVL157/DVL150 only) : ø3.5 mm, 4-pole

C : 0.29 V (p-p), 75 Ø, analogue

C : 0.2 V (p-p) – 0.4 V (p-p), 75 Ø, analogue

AC adapter AP-V10EG

Power requirement : AC 110 V to 240 V`, 50 Hz/60 Hz Output : DC 11 V } , 1 A Dimensions (W x H x D) : 59 mm x 31 mm x 84 mm Weight : Approx. 140 g (not including Power Cord)

Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject to change without notice.

Printed in Japan

This service manual is printed on 100% recycled paper.

No. 86614

February 2001

Section Title Page Section Title Page

Important Safety Precautions

INSTRUCTIONS

1. DISASSEMBLY

1.1 BEFORE ASSEMBLY AND DISASSEMBLY ......................... 1-1

1.1.1 Precautions..................................................................... 1-1

1.1.2 Assembly and disassembly ............................................ 1-1

1.1.3 Destination of connectors ............................................... 1-1

1.1.4 Disconnection of Connectors (Wires) ............................. 1-1

1.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,

ASSEMBLY AND ADJUSTMENT.......................................... 1-2

1.2.1 Tools required for adjustments ....................................... 1-2

1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND

BOARD ASSEMBLY ............................................................. 1-2

1.3.1 Disassembly flow chart ................................................... 1-2

1.3.2 Disassembly method ...................................................... 1-3

1.4 # MONITOR ASSEMBLY ..................................................... 1-8

1.4.1 Disassembly/assembly of monitor assembly

(for 2.5”-type LCD) .......................................................... 1-8

1.4.2 Disassembly/assembly of hinge assembly

(for 2.5”-type LCD) .......................................................... 1-8

1.4.3 Disassembly/assembly of monitor assembly

(for 3.5”-type LCD) .......................................................... 1-9

1.4.4 Disassembly/assembly of hinge assembly

(for 3.5”-type LCD) .......................................................... 1-9

1.5 ! E. VF ASSEMBLY ........................................................... 1-10

1.5.1 Disassembly/assembly of E. VF assembly

(for B/W VF) .................................................................. 1-10

1.5.2 Disassembly/assembly of E. VF assembly

(for Color VF) .................................................................1-11

1.6 DISASSEMBLY/ASSEMBLY OF OP BLOCK

ASSEMBLY/CCD BOARD ASSEMBLY .............................. 1-12

1.6.1 Precautions................................................................... 1-12

1.6.2 How to remove CCD board assembly and CCD base

assembly ...................................................................... 1-12

1.6.3 How to assemble CCD base assembly and CCD board

assembly ...................................................................... 1-12

1.6.4 Replacement of Service Repair Parts .......................... 1-12

1.7 EMERGENCY DISPLAY ..................................................... 1-13

1.8 SERVICE NOTE ................................................................. 1-14

2. MECHANISM ADJUSTMENT

2.1

PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR ...

2.1.1 Precautions..................................................................... 2-1

2.1.2 Notes on procedure for disassemby/assembly............... 2-1

2.2 JIGS AND TOOLS REQUIRED FOR DISASSEMBLY,

ASSEMBLY AND ADJUSTMENT.......................................... 2-2

2.2.1 Tools required for adjustments ....................................... 2-2

2.3 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY 2-3

2.3.1 General statement .......................................................... 2-3

2.3.2 Explanation of mechanism mode ................................... 2-3

2.3.3 Mechanism timing chart.................................................. 2-4

2.4 Disassembly/assembly of mechanism assembly .................. 2-5

2.4.1 Follow chart .................................................................... 2-5

2.4.2 Disassembly/assembly ................................................... 2-8

2.4.3 List of procedures for disassembly ............................... 2-14

2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE 2-15

2.6 MECHANISM ADJUSTMENTS ........................................... 2-16

2.6.1

Assembling slide deck assembly and main deck assembly .

2.6.2 Locating tension pole.................................................... 2-17

2.7 SERVICE NOTE ................................................................. 2-18

2.8 JIG CONNECTOR CABLE CONNECTION ........................ 2-20

3. ELECTRICAL ADJUSTMENT

3.1 PRECAUTION ...................................................................... 3-1

3.2 SETUP .................................................................................. 3-2

2-1

2-16

4. CHARTS AND DIAGRAMS

NOTES OF SCHEMATIC DIAGRAM .......................................... 4-1

CIRCUIT BOARD NOTES ........................................................... 4-2

4.1 BOARD INTERCONNECTIONS ........................................... 4-3

SYSCON SCHEMATIC DIAGRAM ............................................. 4-5

4.2

4.3 PC IF SCHEMATIC DIAGRAM ................................................... 4-7

4.4 VTR CPU SCHEMATIC DIAGRAM ............................................ 4-9

4.5 MDA SCHEMATIC DIAGRAM .................................................. 4-11

4.6 AUDIO SCHEMATIC DIAGRAM ............................................... 4-13

4.7 DV MAIN SCHEMATIC DIAGRAM ........................................... 4-15

4.8 PRE/REC SCHEMATIC DIAGRAM .......................................... 4-17

4.9 V OUT SCHEMATIC DIAGRAM ............................................... 4-19

4.10 ANA IN SCHEMATIC DIAGRAM [GR-DVL557EG] ................ 4-21

4.11 CAM DSP SCHEMATIC DIAGRAM ....................................... 4-23

4.12 OP DRIVE SCHEMATIC DIAGRAM ...................................... 4-25

4.13 TG/VDRV SCHEMATIC DIAGRAM ........................................ 4-27

4.14 REG SCHEMATIC DIAGRAM ................................................ 4-29

4.15 DSC/USB SCHEMATIC DIAGRAM ........................................ 4-31

4.16 MONITOR SCHEMATIC DIAGRAM ....................................... 4-33

4.17 LCD BL SCHEMATIC DIAGRAM ........................................... 4-35

4.18 CCD SCHEMATIC DIAGRAM ................................................ 4-37

4.19 JUNCTION SCHEMATIC DIAGRAM ..................................... 4-38

4.20 JACK SCHEMATIC DIAGRAM .............................................. 4-39

4.21 B/W VF SCHEMATIC DIAGRAM ........................................... 4-40

4.22 ZOOM UNIT SCHEMATIC DIAGRAM ................................... 4-41

4.23 MAIN CIRCUIT BOARD ......................................................... 4-43

4.24 MONITOR CIRCUIT BOARD [GR-DVL355EG/EK,

DVL357EG/EK] ....................................................................... 4-49

4.25 MONITOR CIRCUIT BOARD [GR-DVL555EG/EK,

DVL557EG/EK] ....................................................................... 4-51

4.26 LCD BL CIRCUIT BOARD [GR-DVL355EG/EK,

DVL357EG/EK] ....................................................................... 4-53

4.27 LCD BL CIRCUIT BOARD [GR-DVL555EG/EK,

DVL557EG/EK] ....................................................................... 4-55

4.28 CCD AND JUNCTION CIRCUIT BOARDS ............................ 4-57

4.29 JACK CIRCUIT BOARD ......................................................... 4-59

4.30 VOLTAGE CHARTS ............................................................... 4-61

4.31 POWER SYSTEM BLOCK DIAGRAM ................................... 4-67

4.32 VIDEO SYSTEM BLOCK DIAGRAM ...................................... 4-69

4.33 REGULATOR SYSTEM BLOCK DIAGRAM .......................... 4-73

4.34 AUDIO SYSTEM BLOCK DIAGRAM ..................................... 4-75

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>

[GR-DVL555EG/EK, 557EG] ................................................ 5-8

5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4>

[GR-DVL355EG/EK, 357EG/EK, 557EK] .............................. 5-9

5.5 MONITOR ASSEMBLY <M5>

[GR-DVL355EG/EK, 357EG/EK] ........................................ 5-10

5.5 MONITOR ASSEMBLY <M5>

[GR-DVL555EG/EK, 557EG/EK] ......................................... 5-11

5.6 ELECTRICAL PARTS LIST ................................................. 5-12

MONITOR BOARD ASSEMBLY <02> ..................................... 5-21

LCD BL BOARD ASSEMBLY <03> ......................................... 5-23

CCD BOARD ASSEMBLY <04> .............................................. 5-23

JUNCTION BOARD ASSEMBLY <05> ................................... 5-23

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

The following table lists the differing points between Models GR-DVL355EG/EK,GR-DVL357EG/EK,GR-DVL555EG/EK and GR-DVL557EG/EK in this series.

GR-DVL355EG GR-DVL355EK GR-DVL357EG GR-DVL357EK GR-DVL555EG GR-DVL555EK GR-DVL557EG GR-DVL557EK

VIEW FINDER B/W B/W B/W B/W COLOR COLOR COLOR B/W

LCD MONITOR 2.5” 2.5” 2.5” 2.5” 3.5” 3.5” 3.5” 3.5”

AV IN NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED USED NOT USED

S IN NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED USED NOT USED

DV IN NOT USED NOT USED USED USED NOT USED NOT USED USED NOT USED

AC ADAPTER AP-V10EG AP-V10EK AP-V10EG AP-V10EK AP-V10EG AP-V10EK AP-V10EG AP-V10EK

Important Safety Precautions

Crimping tool

Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

Precautions during Servicing

•

1. Locations requiring special caution are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product. When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and service manuals.

2. Parts identified by the ! symbol and shaded ( ) parts are critical for safety. Replace only with specified part numbers.

Note: Parts in this category also include those specified to com-

ply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission.

3. Fuse replacement caution notice. Caution for continued protection against fire hazard. Replace only with same type and rated fuse(s) as specified.

4. Use specified internal wiring. Note especially:

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

5. Use specified insulating materials for hazardous live parts. Note especially:

1) Insulation Tape 3) Spacers 5) Barrier

2) PVC tubing 4) Insulation sheets for transistors

6. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.) wrap ends of wires securely about the terminals before soldering.

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

1) Connector part number : E03830-001

2) Required tool : Connector crimping tool of the proper type which

will not damage insulated parts.

3) Replacement procedure

(1) Remove the old connector by cutting the wires at a point

close to the connector. Important : Do not reuse a connector (discard it).

cut close to connector

Fig.3

(2) Strip about 15 mm of the insulation from the ends of the

wires. If the wires are stranded, twist the strands to avoid frayed conductors.

15 mm

Fig.1

7. Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.)

8. Check that replaced wires do not contact sharp edged or pointed parts.

9. When a power cord has been replaced, check that 10-15 kg of force in any direction will not loosen it.

Power cord

Fig.2

10. Also check areas surrounding repaired locations.

11. Products using cathode ray tubes (CRTs) In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compliance with recognized codes pertaining to X-ray emission. Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts. Under no circumstances attempt to modify these circuits. Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube.

Fig.4

(3) Align the lengths of the wires to be connected. Insert the

wires fully into the connector.

Metal sleeve

Connector

Fig.5

(4) As shown in Fig.6, use the crimping tool to crimp the metal

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

Fig.6

(5) Check the four points noted in Fig.7.

Not easily pulled free

Wire insulation recessed

more than 4 mm

Crimped at approx. center

of metal sleeve

Conductors extended

Fig.7

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.

Fig. 8

4. Leakage current test

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

Externally exposed accessible part

Fig. 9

5. Grounding (Class 1 model only)

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

Measuring Method:

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

Fig. 10

Table 1 Specifications for each region

Table 2 Leakage current specifications for each region

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

S40888-01

SECTION 1

DISASSEMBLY

1.1 BEFORE ASSEMBLY AND DISASSEMBLY

1.1.1 Precautions

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

2. When removing a component part that needs to disconnect the connector and to remove the screw for removing itself, first disconnect the connecting wire from the connector and then remove the screw beforehand.

3. When connecting and disconnecting the connectors, be careful not to damage the wire.

4. Carefully remove and handle the part to which some spacer or shield is attached for reinforcement or insulation.

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

6. Tighten screws properly during the procedures. Unless specified otherwise, tighten screws at a torque of 0.069N

•

m(0.7kgf•cm).

1.1.2 Assembly and disassembly

STEP

No.

PART

COVER(ZOOM) Fig.1-3-1 (S1a),(S1b),2(L1a),2(L1b ) ASSY

UPPER CASE ASSY ( Inc.E.VF UNIT 2(S2a),(S2d),4(S2a) (B/W,COLOR), CAP(DC JACK) SPEAKER/ 聽CN 2a MONITOR)

Fig.No.

Fig.1-3-2 (S2a),(S2b),(L2),(S2c) NOTE2

POINT NOTE

1.1.4 Disconnection of Connectors (Wires)

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

Flat wire

Connector

Fig. 1-1-1 Connector 1

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

Flat wire

(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

夡(Others) Connector, Cover, Bracket, etc.

(Example)

• 2 (S1) : Remove the two screws (S1) for removing the part 1.

• CN 2a : Disconnect the connector 2a .

• 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]

Note:

Remove the parts marked in .

CONN.

No.

2a MAIN CN101 ⇔ MONITOR CN761 50

CONNECTOR

Pin No.

Connector

Fig. 1-1-2 Connector 2

B-B connector Pull the board by both the sides in the direction of the arrow for disconnecting the B-B connector.

Connector

Fig. 1-1-3 Connector 3

Connector

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

Torque Driver

YTU94088

Bit

YTU94088-003

1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS AND BOARD ASSEMBLY

1.3.1 Disassembly flow chart

This flowchart indicates the disassembly step for the cabinet parts and board assembly in order to gain access to item(s) to be serviced. When reassembling, perform the step(s) in reverse order.

1. Torque driver

2. Bit

3. Tweezers

4. Chip IC replacement jig

5. Cleaning cloth

Tweezers

P-895

Cleaning Cloth

KSMM-01

Table 1-2-1

Be sure to use to fastening the mechanism and exterior parts because those parts must strictly be controlled for tightening torque.

This bit is slightly longer than those set in conventional torque drivers.

To be used for removing and installing parts and wires.

To be used for adjustment of the camera system.

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

Chip IC Replacement Jig

PTS40844-2

(Inc.E.VF UNIT(B/W,COLOR),SPEAKER/MONITOR)

COVER(ZOOM) ASSY

UPPER CASE ASSY

FRONT COVER ASSY

(Inc.DC LIGHT,MIC)

OP BLOCK ASSY

/BRACKET(OP) ASSY

REAR UNIT

LOWER CASE ASSY

(Inc.ZOOM UNIT)

/JACK BOARD ASSY

JUNCTION BOARD ASSY

MAIN BOARD ASSY

/MECHANISM ASSY

E.VF UNIT

/SPEAKER

MONITOR ASSY

/MONITOR BOARD ASSY

Table 1-3-1

1-2

1.3.2 Disassembly method

STEP

No.

/(L6a),(L6b)

7 8

/ 聽CN 9a , 9b , 9c

0 !

/(L!) NOTE!b

/ 聽CN 13a , 2(S#b)

PART

COVER(ZOOM) Fig.1-3-1 (S1a),(S1b),2(L1a),2(L1b ) ASSY

UPPER CASE ASSY ( Inc.E.VF UNIT 2(S2a),(S2d),4(S2a) (B/W,COLOR), CAP(DC JACK) SPEAKER/ 聽CN 2a MONITOR)

FRONT COVER Fig.1-3-3 COVER(JACK),3(S3),(L3a) NOTE3a ASSY (L3b),聽CN 3a NOTE3b (Inc.DC LIGHT,MIC)

OP BLOCK ASSY Fig.1-3-4 聽CN 4a , 4b - /BRACKET(OP) 2(S4),2(L4) ASSY

REAR UNIT Fig.1-3-5 聽CN 5a NOTE5

LOWER CASE ASSY (Inc.ZOOMUNIT) (S6a),2(S6b),2(S6c)

----------------- --------------------------------------

JACK BOARD ASSY

JUNCTION BOARD ASSY 2(S8),聽CN 8d NOTE8b

MAIN BOARD ASSY

/MECHANISM ASSY E.VF UNIT Fig.1-3-9 聽CN 11a ,(S!a),(S!b) NOTE!a

----------------- --------------------------------------

SPEAKER (S@),PLATE(SPK) -

MONITOR ASSY Fig.1-3-10 2(S#a),COVER(HINGE) NOTE#

----------------- --------------------------------------

MONITOR BOARD 3(S$),(L$) NOTE$a ASSY NOTE$b

Fig.No.

Fig.1-3-2 (S2a),(S2b),(L2),(S2c) NOTE2

4(S5)

Fig.1-3-6 聽CN 6a , 6b , 6c -

(S7) NOTE7

Fig.1-3-7 聽CN 8a , 8b , 8c NOTE8a

Fig.1-3-8 (S9a),(L9a),SHIELD PLATE -

2(S9b),(L9b),(L9c)

聽CN 12a

POINT NOTE

NOTE$c NOTE$d

NOTE 2:

NOTE 3a:

NOTE 3b:

NOTE 5:

NOTE 7:

NOTE 8a:

NOTE 8b:

NOTE !a:

NOTE !b:

NOTE #:

NOTE $a:

NOTE $b: NOTE $c:

NOTE $d:

Remove the CAP (DC JACK) before removing these parts .

As it is difficult to remove (L3b), remove the F. COVER ASSY by lowering it.

Be careful not to damage any parts. Particularly, take care not to scratch or stain the

lenses. As screw No. 19 is hidden behind the cassette

cover, open the cassette cover to enable removal of the screw.

As screw No. 27 is hidden behind the cassette cover, open it before removing the screw.

As the CN572 is located at the back of the assembly, unplug the three connectors and remove the screws before disconnecting the CN572.

Be careful not to damage any of the switches.

To remove the unit, unlock the connector and pull out the unit together with the FPC.

When removing the unit, insert the FPC into the gap.

When reassembling the MONITOR ASSY, be careful not to damage any of the parts.

To remove the assembly, pull the memory card out in advance. (MMC compatible models only)

Be careful not to damage any of the parts. Be careful not to damage any of the parts.

SW KNOB(DC LIGHT: Gray) Be careful not to damage any of the parts.

SW KNOB(VIDEO-DSC: Violet)

Table 1-3-2

Remove the parts marked in .

Note:

CONN.

No.

2a MAIN CN101 ⇔ MONITOR CN761 50

3a MAIN CN106 ←→ MIC — 3

4a MAIN CN107 ⇔ CCD — 20

4b MAIN CN108 ⇔ OP BLOCK ASSY — 24

5a MAIN CN104 ←→ REAR UNIT CN1 10

6a MAIN CN109 ⇔ ZOOM UNIT — 15

6b MAIN CN102 ←→ JACK CN501 9

6c JACK CN502 ⇔ MAIN CN103 14

8a JUNCTION CN571 ⇔ MAIN CN113 34

8b JUNCTION CN574 ⇔

8c JUNCTION CN573 ⇔ DRUM MOTOR — 11

8d JUNCTION CN572 ⇔ SENSOR — 15

9a MAIN CN110 ⇔ HEAD — 8

9b MAIN CN112 ⇔ CAPSTAN MOTOR — 18

9c MAIN CN111 ⇔ ROTARY ENCODER — 6

11a MONITOR CN763 ⇔

12a MONITOR CN765 ←→ SPEAKER — 2

13a MONITOR CN764 ⇔ LCD BL CN751 33/32

CONNECTOR

LOADING MOTOR

E.VF UNIT (C_B/W) CN721/CN751

—6

Table 1-3-3

Pin No.

(L 1 b)

Fig. 1-3-1

(L 1 a)

(S 1 b)

1-3

(S 2 a)

11 12 13 14

()

(S 2 a)

(BOTTOM SIDE)

(S 2 b)

(REAR SIDE)

(L 2 )

(S 2 c)

CAP (DC JACK)

NOTE

Fig. 1-3-2

1-4

)

COVER

(JACK)

3NOTE b

)

3NOTE a

Fig. 1-3-3

BRACKET (OP)

ASSY

)

Fig. 1-3-4

5NOTE

(S 5 )

Fig. 1-3-5

(S 5 )

1-5

)

8NOTE a

7NOTE

Fig. 1-3-6

)

SHIELD

PLATE

EJECT SW

1-6

8NOTE b

)

Fig. 1-3-7 Fig. 1-3-8

11NOTE b

)

11NOTE a

PLATE

(SPK)

)

Fig. 1-3-9

)

14NOTE b

)

14NOTE

14NOTE c

13NOTE

14NOTE a

)

COVER

(HINGE)

: 0.147N·m (1.5kgf·cm)

Fig. 1-3-10

1-7

1.4

MONITOR ASSEMBLY

Note:

The shape of the monitor assembly varies by the size of the LCD screen.

For the 2.5”-type LCD, refer to Fig. 1-4-1.

3. Unplug the wires and FPCs from the two connectors b ,

c , and then remove the MONITOR BL board assembly, holder (PWB) and backlight in that order.

4. Remove the LCD module.

1.4.1 Disassembly/assembly of monitor assembly (for 2.5”-type LCD)

Note:

Be careful not to soil or scratch the monitor screen through the disassembly/assembly work.

1. Remove the four screws 1 to 4 in numerical order. While

disengaging the six hooks (L#a to L#f) in alphabetical order, remove the monitor cover assembly.

2. Unlock the connector a and then disconnect the FPC

while lifting the hinge assembly upwards to remove it together with the FPC.

Note

For disconnecting the FPC, unlock the connector

first and then lift the hinge assembly upwards. Accordingly, the FPC is disconnected together with the hinge assembly.

Note#b:

Treat the wires carefully.

* : 0.069N·m (0.7kgf·cm) ** : 0.098N·m (1.0kgf·cm)

6* 13

(S d)

Hinge cover(1)

(S d)

1.4.2 Disassembly/assembly of hinge assembly (for 2.5”-type LCD)

1. Remove the three screws (5 to 7), and then remove the

hinge covers (1) and (2) by disengaging a total of four hooks (L#g, L#h) at the two sides.

2. Separate the SW board assembly and the FPC from the

hinge assembly.

Note

When connecting the FPC, arrange the FPC wire

by winding it around the shaft (hinge pin) of the hinge assembly by two and a half turns while paying heed to the orientation of the hinge assembly and FPC.

Note#d:

When disassembling/assembling the hinge assembly, pay careful attention to every part not to damage anything.

Monitor cover

(L b)

3**

(S b)

LCD BL PWB

assy

4**

(S b)

(L c)

(L a)

(L f)

(S a)

(L e)

(L d)

1* 13

2* 13

(S a)

MONI. FPC ASSY

13 13

Note c / d

13 13

Note c / d

FPC

Hinge

5* 13

(S c)

(L g)

Hinge cover(2)

Note b

13 13

Note c / d

Hinge assy

(L h)

Note a

Holder

(PWB)

Back light

LCD module

Bracket(Earth)

Monitor case assy

1-8

Fig. 1-4-1

+ 28 hidden pages

JVC GR-DVL357E Service Manual

TABLE OF CONTENTS

Important Safety Precautions

DISASSEMBLY

1.1 BEFORE ASSEMBLY AND DISASSEMBLY