JVC GR-D230 Service Manual

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SERVICE MANUAL

DIGITAL VIDEO CAMERA

YF04220043

GR-D230US, GR-D231US

GR-D230US, GR-D231US[M4D2S7]

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

TABLE OF CONTENTS

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

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

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

No.YF042

2004/3

Page 2

SPECIFICATION

1-2 (No.YF042)

Page 3

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.

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.

(12) Crimp type wire connectorIn 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

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

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.YF042)1-3

Page 4

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.

Chassis

Power cord primary wire

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.

Externally exposed 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.

AC inlet

Earth pin

Exposed accessible part

MIlli ohm meter

Grounding Specifications

Region

USA & Canada

Europe & Australia

Grounding Impedance (Z

Z 0.1 ohm

Z 0.5 ohm

)

Fig.1-1-10

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

200 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Insulation Resistance (R

R 1 M /500 V DC

1 M R 12 M /500 V DC

R 10 M /500 V DC

)

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 minute

AC 1 kV 1 minute AC 3 kV 1 minute

AC 1.5 kV 1 minute

(

Class

(

Class

Clearance Distance (d), (d'

d, d' 3 mm

d, d' 4 mm

d, d' 3.2 mm

d 4 m m

)

d' 8 m m (Power cord d' 6 m m (Primary wire

)

Fig.1-1-11

AC Line Voltage

100 V

110 to 130 V

220 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Load Z

0.15

1.5

Leakage Current (i)

i 1 mA rms

i 0.5 mA rms

i 0.7 mA peak i 2 mA dc

a, b, c

Exposed accessible parts

Antenna earth terminals

Other terminals

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.YF042)

Page 5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 DIFFERENCE LIST

The following table indicate main different points between models GR-D230US and GR-D231US.

MODEL GR-D230US GR-D231US

BODY COLOR Silver & Blue Silver & Silver

(No.YF042)1-5

Page 6

SECTION 3

DISASSEMBLY

3.1 BEFORE ASSEMBLY AND DISASSEMBLY

3.1.1 Precautions

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

• 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).

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

• When inserting the flat wire to the connector, pay attention to the direction of the flat wire.

• Be careful in removing the parts to which some spacer or shield is attached for reinforcement or insulation.

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

• Tighten screws properly during the procedures. Unless specified otherwise, tighten screws at a torque of 0.118N

·cm). However, 0.118N·m (1.2kgf·cm) is a value at the

(1.2kgf time of production. At the time of service, perform the procedure at a torque 10% less than 0.118N

·m (1.2kgf·cm).

(See "SERVICE NOTE" as for tightening torque.)

3.1.2 Destination of connectors

Two kinds of double-arrows in connection tables respectively

show kinds of connector/wires.

: Wire: Flat wire : Board to board (B-B)

: The connector of the side to remove

CONN. No. PIN No.CONNECTOR

CN2a

CN2b

MAIN CN101

MAIN CN103

MONI BW CN761

MINI BW CN7624010

3.1.3 Disconnection of connectors (Wires)

Wire

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

B-B Connector

· Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.

FPC Connector

· 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.

Wire

FPC Connector

Lock

B-B Connector

Fig.3-1-1

3.1.4 Tools required for disassembly and assembly

Torque driver

YTU94088

Bit

YTU94088-003

Tweezers

P-895

·m

• Torque driver

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

• Bit

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

• Tweezers

To be used for removing and installing parts and wires.

• Chip IC replacement jig

To be used for replacement of IC.

• Cleaning cloth

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

3.2 ASSEMBLY AND DISASSEMBLY OF MAIN PARTS

3.2.1 Assembly and disassembly

When reassembling, perform the step(s) in reverse order.

STEP

No.

[1] [2]

[8]

PART

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

(∗1) Order of steps in Procedure

When reassembling, preform the step(s) in the reverseorder. 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

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

released, unplugged, unclamped or unsoldered.

S = Screw L = Lock, Release, Hook SD = Solder CN = Connector

[Example]

• 4 (S1a) = Remove four S1a screws.

• 3 (L1a) = Disengage three L1a hooks.

• 2 (SD1a) = Unsolder two SD1a points.

• CN1a = Remove a CN1a connector.

(∗5) Adjustment information for installation.

Fig. No.

4(S1a),3(L1a),CN1a

Fig.C1

(S2a),2(S2b),3(S2c)

Fig.C2-1

2(SD1a), L2,CN2a,b 2(S8),L8,CN8a

Fig.C2-2

POINT

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

NOTE

NOTE8

Chip IC replacement jig

PTS40844-2

1-6 (No.YF042)

Cleaning cloth

KSMM-01

Fig.3-1-2

Page 7

3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS(1)

zDisassembly procedure

STEP

No.

[1] [2]

[3] [4]

[5] [6] [7]

[8]

[9] [10] [11]

PART NOTE

TOP COVER ASSEMBLY UPPER CASE ASSEMBLY (Inc. MONITOR ASSEMBLY) REAR COVER ASSEMBLY FRONT COVER ASSEMBLY (Inc.MIC ASSEMBLY) VF ASSEMBLY BASE LOWER ASSEMBLY (Inc. FRONT BOARD ASSEMBLY/ SD BOARD ASSEMBLY) OP BLOCK ASSEMBLY/ CCD BOARD ASSEMBLY MAIN BOARD ASSEMBLY MDA BOARD ASSEMBLY MECHA ASSEMBLY

Fig. No.

2(S1a),2(S1b),CN1

Fig.FA1

(S2a),(S2b),4(S2c),2(L2a),2(L2b)

Fig.FA2

CN2a,b CN3,4(S3),4(L3)

Fig.FA3

(S4a),(S4b),

Fig.FA4

2(S4c),CN4 CN5a,b,2(S5),L5

Fig.FA5

2(S6) CN7a,SPACER,CN7b,c,4㧔S7㧕

Fig.FA6

2(S8),L8

CN9a,b,(S9a),2(S9b),CN9c

Fig.FA7

CN10a,b,c,d,2(S10)

Fig.FA8

(S11),SHIELD COVER(1),3(S11)

Fig.FA9

BKT(MECHA)ASSEMBLY

POINT

JACK COVER(AV)ASSEMBLY

Fig.3-2-1

NOTE2:

For disassembly of the MONITOR ASSEMBLY, see "3.2.6 DISASSEMBLY of [12] MONITOR ASSEMBLY".

NOTE5a:

NOTE2

NOTE5a,b

NOTE7

NOTE8

zDestination of connectors

CONN.

No.

CN1 MAIN CN109 ZOOM SW(OPE) - 6

CN2a MAIN CN112 MONITOR   /CN7602

CN2b MAIN CN110 JUNCTION CN401 10

CN3 MAIN CN104 REAR CN501 40

CN4 MAIN CN107 MICASSY - 4

CN5a MAIN CN105 SD CN901 22

CN5b MAIN CN103 VF FPC ASSY - 22

CN7a FRONT CN701 MAIN CN108 24

CN7b MAIN CN102 CCD CN5201 20

CN7c MAIN CN101 OP BLOCK ASSY - 24

CN9a MAIN CN106 MDA CN305 30

CN9b MAIN CN113 HEAD - 8

CN9c MAIN CN114 SENSOR - 16

CN10a MDA CN301 CAPSTAN MOTOR - 18

CN10b MDA CN302 DRUM MOTOR - 11

CN10c MDA CN303 ROTARY ENCODER SW - 6

CN10d MDA CN304 LOADING MOTOR - 6

Another FPC overlaps the FPC of the VF ASSEMBLY. Before removing the FPC of the VF ASSEMBLY, remove CN5a.

NOTE5b:

For disassembly of the VF ASSEMBLY, see "3.2.4 DISASSEMBLY of [5] VF ASSEMBLY".

NOTE7:

In removing the LOWER ASSEMBLY, remove the SPACER, and remove the FPC. Be careful not to damage the FPC.

NOTE8:

For disassembly of the OP BLOCK ASSEMBLY, see "3.2.5 DISASSEMBLY of [8] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY ".

CONNECTOR

Fig.3-2-2

CN7601

PIN.

39/20,

(No.YF042)1-7

Page 8

(S1a)

[1]

(S1b)

(S1a)

CN1

Fig.FA1

(S2a)

(S2c)

: 0.088N.m (0.9kgf.cm)

1-8 (No.YF042)

[2]

NOTE2

L2b

(S2c)

(S2b)

Fig.FA2

CN2b

L2a

CN2a

Page 9

(S3)

(S4b)

JACK COVER (AV)ASSEMBLY

CASSETTE COVER ASSEMBLY

(S4a)

(S4c)

[3]

[4]

CN3

Fig.FA3 Fig.FA4

(S5)

CN4

: 0.088N.m (0.9kgf.cm)

[5]

NOTE5b

CN5b

(S6)

(S5)

Fig.FA5

[6]

NOTE5a

CN5a

(No.YF042)1-9

Page 10

NOTE8

[8]

NOTE7 SPACER

(S8)

(S7)

(S8)

(S9a)

(S7)

Fig.FA6

[7]

CN7b

CN7c

CN7a

[9]

CN9c

CN9a

(S9b)

CN9b

Fig.FA7 Fig.FA8

CN10a

CN10b

[10]

CN10d

CN10c

(S10)

: 0.088N.m (0.9kgf.cm)

1-10 (No.YF042)

Page 11

SHIELD COVER(1)

(S11)

[11]

BKT(MECHA) ASSEMBLY

NOTE1a JACK COVER(AV) ASSEMBLY

(S11)

(S1)

NOTE1b

(S11)

: 0.088N.m (0.9kgf.cm)

Fig.FA9 Fig.LO1

3.2.3 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS(2)

zDisassembly procedure

STEP

No.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

PART NOTE

FRONT BOARD ASSEMBLY BKT(TOP)ASSEMBLY LOWER CASE ARM ASSEMBLY POWER UNIT SD BOARD ASSEMBLY SPEAKER

NOTE1a:

Prior to the procedure, remove the JACK COVER(AV) ASSEMBLY.

NOTE1b:

In attaching the FRONT BOARD ASSEMBLY, be careful not to damage the EJECT SWITCH (S701).

NOTE2:

Be careful not to damage the FPC.

NOTE3:

To remove one screw (9), open the CASSETTE COVER ASSEMBLY.

NOTE4a:

Be careful not to damage the FPC.

NOTE4b:

In attaching the ARM ASSEMBLY, be careful so that the SLIDE KNOB of the CASSETTE COVER and the SLIDE KNOB of the ARM ASSEMBLY are correctly engaged. After attaching the ARM ASSEMBLY, confirm that the SLIDE KNOB operates properly.

Fig. No.

JACK COVER(AV)ASSEMBLY,2(S1)

Fig.LO1

3(S2),2(L2a),L2b,2(L2c)

Fig.LO2

5(S3),L3

Fig.LO3

3(S4a),COVER(ADJUST),4(S4b),2(S4a)

Fig.LO4 Fig.LO5

CN5,2(S5a),(S5b),(S5a),L5a,2(L5b)

Fig.LO6

3(S6),2(L6) CN7

POINT

NOTE1a,b

NOTE2 NOTE3

NOTE4a,b

NOTE6 NOTE7

(S1)

NOTE6:

Prior to removing the SD BOARD ASSEMBLY, remove the SD card.

NOTE7:

Prior to removing the SPEAKER, remove the SD BOARD ASSEMBLY. Be careful of handing the parts. Be careful enough not to cut or damage the wire.

zDestination of connectors

CONN.

No.

CN5 SD CN902 POWER UNIT - 9

CN7 SD CN903 SPEAKER - 2

[1]

CONNECTOR

PIN.

(No.YF042)1-11

Page 12

(S2)

L2a

[3]

[2]

L2b

NOTE2

(S2)

NOTE3

(S3)

BKT

CASSETTE COVER

ASSEMBLY

(S4b)

(S4a)

L2c

(S3)

: 0.098N.m (1.0kgf.cm)

Fig.LO2 Fig.LO3

COVER(ADJUST)

(S4a)

NOTE4a

(S3)

(S4b)

: 0.098N.m (1.0kgf.cm)

1-12 (No.YF042)

(S4a)

(S4b)

(S4a)

NOTE4b

[4]

Fig.LO4

Page 13

L5a

(S5a)

(S5b)

: 0.088N.m (0.9kgf.cm)

L5a

L5b

(S5a)

Fig.LO5

L5b

CN5

[5]

[7] NOTE7

(S6)

: 0.088N.m (0.9kgf.cm)

CN7

[6] NOTE6

Fig.LO6

(No.YF042)1-13

Page 14

3.2.4 DISASSEMBLY of [5] VF ASSEMBLY

zDisassembly of exterior parts

(1) Remove the two screws (1,2). (2) Remove the SPACER so that the SWITCH BOARD

ASSEMBLY moves easily.

(3) Remove gradually the FPC attached to two places of the

HOLDER(VF) ASSEMBLY so that the HOLDER(VF) ASSEMBLY moves easily.

NOTE5a:

Be careful enough not to cut or damage the removed FPC since the FPC is attached again.

(4) Remove the four screws (3-6), and remove the VF

ASSEMBLY from the HOLDER(VF) ASSEMBLY.

(5) Remove the two screws (7,8), and remove the VF CASE

(L).

(6) Remove one screw (9), and remove the LEVER (VF).

NOTE5b:

In an assembly procedure, be careful of the position of the LENS HOLDER ASSEMBLY, and confirm that the LEVER (VF) moves smoothly.

(7) Remove the GUIDE(LENS) part and the HOLDER(LCD)

part from the VF CASE(U).

NOTE5c:

Remove the HOLDER(LCD) part together with the GUIDE(LENS) part.

zDisassembly of HOLDER(LCD) part

Parts are engaged in the both sides of the HOLDER(LCD). See the figure below, and disassemble the parts if necessary.

NOTE5d:

In an assembly procedure, be careful not to insert foreign materials or attach fingerprints in the parts.

zDisassembly of GUIDE(LENS) part

Parts are attached to the GUIDE(LENS) part from the EYE CUP side. See the following figure, and remove the EYE CUP if necessary to disassemble the parts.

NOTE5e:

Be careful not to lose the parts.

< HOLDER(LCD)BLOCK >

NOTE5d

VF BL BOARD

ASSEMBLY

STOPPER (POLA)

SHEET (POLA)

HOLDER (LCD)

GUIDE(LENS)

< GUIDE(LENS)BLOCK >

SPRING(LENS)

LENS HOLDER ASSEMBLY

FPC

CASE (B.LIGHT)

SPRING (LCD)

SHEET (DIFF)

SHEET (POLA)

HOLDER (SHEET)

LCD MODULE

GUIDE (LCD)

NOTE5d

NOTE5e

LEVER SWITCH

SWITCH BOARD ASSEMBLY

(S5b)

(S5a)

(S5d)

FPC

NOTE5a

VF CASE (U)

(S5b)

(S5a)

: 0.069N.m (0.7kgf.cm) : 0.078N

m (0.8kgf.cm)

VF CASE (L)

GUIDE(LENS) BLOCK NOTE5c

HOLDER(LCD) BLOCK

LEVER(VF)

NOTE5b

HOLDER(VF) ASSEMBLY

(S5f)

(S5e)

1-14 (No.YF042)

SHEET(LENS)

EYE CUP

Fig.3-2-4

(S5c)

SPACER(A)

(S5c)

Page 15

3.2.5 DISASSEMBLY of [8] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY

zCAUTIONS

(1) During the procedure, remove the OP BLOCK ASSEMBLY

ASSEMBLY. Instead, replace the entire CCD BASE

ASSEMBLY. if necessary. When removing the OP BLOCK ASSEMBLY, be careful not to damage the lens.

(2) During the procedure, be careful in handling CCD

IMAGE SENSOR, OP LPF, lens, and so on. Be careful not to damage or soil the surface of them. If they are soiled with fingerprints, etc., gently clean them with chamois or the cleaning cloth.

(3) When products are shipped from the factory, protection

seals are applied onto transparent glass of some CCD image sensors. Leave the protection seal as it is, and take it off just before assembling the CCD image sensor to the OP BLOCK ASSEMBLY.

(4) When removing OP LPF, be careful of the attachment

direction of OP LPF. (Marking is attached to some OP LPFs.) When reassembling OP LPF, reattach OP LPF to the original position.

zDisassembly procedure of OP BLOCK ASSEMBLY/CCD

BOARD ASSEMBLY

(1) Unsolder the fourteen soldered parts (SD8) on the CCD

BOARD ASSEMBLY, and remove the CCD BOARD ASSEMBLY.

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

BASE ASSEMBLY.

NOTE8b:

When removing the CCD BASE ASSEMBLY, be careful in handling a sheet and OP LPF since a sheet or OP LPF may be removed together with the CCD BASE ASSEMBLY.

NOTE8c:

When replacing the CCD image sensor, don't remove

zAssembly procedure of OP BLOCK ASSEMBLY/CCD

BOARD ASSEMBLY

(1) Attach the OP LPF to the OP BLOCK ASSEMBLY, and

then the sheet to the OP BLOCK ASSEMBLY.

NOTE8d:

When attaching OP LPF to the OP BLOCK ASSEMBLY,

be careful about the attachment direction.

(2) Attach the CCD ASSEMBLY so that the sheet is not

shifted, and attach the CCD ASSEMBLY and the sheet to the OP BLOCK ASSEMBLY by tightening them with the two screws (1 and 2).

(3) Insert the CCD BOARD ASSEMBLY to the CCD BASE

ASSEMBLY, and solder the fourteen points (SD8).

zReplacement of service repair parts

Service repair parts of the OP BLOCK ASSEMBLY are as follows. When replacing the parts, be careful not to cut or damage the FPC, and not to damage the parts due to soldering (overheat).

(1) Focus motor (2) Zoom motor (3) Iris motor unit

NOTE8e:

When replacing the focus motor or the zoom motor, lift

the FPC approx.1mm away from the jack to solder the

FPC.

NOTE8f:

Iris motor unit contains the FPC ASSEMBLY and the

SENSOR ×2.

the CCD image sensor from the CCD BASE

SENSOR

(S8c)

(S8b)

IRIS MOTOR UNIT

NOTE 8e, f

(S8c)

(S8b)

OP BLOCK ASSEMBLY

side

FOCUS MOTOR

NOTE 8e

(S8b)

Fig.3-2-4

OP LPF

Blue

CCD

side

ZOOM MOTOR

14(SD8)

OP LPF NOTE 8d

NOTE 8a

CCD BOARD ASSEMBLY

NOTE 8b, c

CCD BASE ASSEMBLY

SHEET

(S8a)

(No.YF042)1-15

Page 16

3.2.6 DISASSEMBLY of [12] MONITOR ASSEMBLY

zNotice

(1) First remove the MONITOR ASSEMBLY from the

LOWER ASSEMBLY since the MONITOR ASSEMBLY is removed together with the LOWER ASSEMBLY in ASSEMBLY AND DISASSEMBLY OF MAIN PARTS.

(2) During the procedure, be careful in handling the LCD

MODULE,etc., especially not to damage or soil the monitor screen. If it is soiled with fingerprints, etc., gently clean it with chamois or the cleaning cloth.

(3) Since the BACKLIGHT is soldered to the BOARD

ASSEMBLY (SD12), the BACKLIGHT should not be separated from the BOARD ASSEMBLY except when replacing the BACKLIGHT.

zDisassembly

(1) Remove the two screws (1,2) so that the FPC moves

easily.

(2) Remove the four screws (3-6), and remove the

COVER(UPPER).

(3) Remove the three screws (7-9). Leave the FPCs

connected to the JUNCTION BOARD ASSEMBLY.

NOTE12a:

To remove the MONITOR ASSEMBLY, the FPCs of JUNCTION BOARD ASSEMBLY need not be removed.

(4) Remove the two screws (10,11), and remove the

MONITOR ASSEMBLY.

NOTE12b:

In attaching the MONITOR ASSEMBLY, be careful not to damage the MONI_ON/OFF SWITCH.

(1) Remove the four screws (12-15), and remove the MON-

ITOR COVER ASSEMBLY while removing the three hooks (L12).

(2) Remove the U/D SWITCH BOARD ASSEMBLY from the

MONITOR CASE ASSEMBLY.

(3) Unlock the connector CN12a and then CN12b, and raise

and remove the HINGE UNIT ASSEMBLY.

NOTE12c:

During the procedure, be careful in handling the FPC. (4) Unlock one connector CN12c, and remove the FPC. (5) Remove the MONITOR BOARD ASSEMBLY together

with the BACKLIGHT. (6) Remove the SHIELD CASE. (7) Remove the LCD MODULE.

(1) Remove the two screws (16,17) and remove the HINGE

COVER(L) with care not to damage the FPC.

NOTE12d:

Be careful not to lose the P.C.MAGNET. If the P.C.MAGNET is removed, attach the P.C.MAG-

NET so that a side with a mark comes inside. (2) Remove the FPC from the HINGE COVER(L). (3) Remove the FPC from the HINGE COVER(U). (4) Remove the FPC from the HINGE ASSEMBLY.

NOTE12e:

Be careful in handling the FPC.

Wind the FPC around the rotational axis of the HINGE

ASSEMBLY 2.5 times so that the CONNECTOR of

FPC to be connected to the MONITOR ASSEMBLY

BOARD comes under the whole FPC.

HINGE UNIT ASSEMBLY

16(S12g) HINGE COVER(L)

HINGE ASSEMBLY

HINGE COVER(U)

NOTE12c

FPC

U/D SWITCH BOARD ASSEMBLY

MONITOR CASE ASSEMBLY

P.C.MAGNET NOTE12d

17(S12g)

CN12b

CN12c

SD12

NOTE12c,e

F1 F2

CN12a

MONITOR BOARD ASSEMBLY

SD12

BACK LIGHT

SHIELD CASE

LCD MODULE

FPC

(S12a)

(S12c)

NOTE12b

VIDEO-DSC SW

: 0.246N.m (2.5kgf.cm)

(S12a)

(S12d)

JUNC BOARD ASSEMBLY

NOTE12a

MONI_ON/OFF SW

NOTE12b

(S12f)

: 0.078N.m (0.8kgf.cm)

m (2.0kgf.cm)

COVER (UPPER)

(S12b)

(S12c)

(S12e)

MONITOR COVER ASSEMBLY

L12

: 0.196N

(S12e)

1-16 (No.YF042)

Fig.3-2-6

Page 17

SECTION 4

ADJUSTMENT

4.1 PREPARATION

4.1.1 Precaution

Camera system and deck system of this model are specially adjusted by using PC. However, if parts such as the following are replaced, an adjustment is required. The adjustment must be performed in a Service Center equipped with the concerned facilities.

• OP BLOCK ASSEMBLY

• EEP ROM (IC1005 of MAIN board)

In the event of malfunction with electrical circuits, first find a defective portion with the aid of proper test instruments as shown in the following electrical adjustment procedure, and then commence necessary repair/ replacement/adjustment.

• In observing chip TP, use IC clips, etc. to avoid any stress. Prior to replacement of chip parts (especially IC), remove the solder completely to prevent peeling of the pattern.

• Use a patch cord if necessary. As for a patch cord, see the BOARD INTERCONNECTIONS.

• Since connectors are fragile, carefully handle them in disconnecting and connecting the FPC.

4.1.2 REQUIRED TEST EQUIPMENT

• Personal computer (for Windows)

• Color TV monitor

• Oscilloscope (dual-trace type, observable 100MHz or higher frequency). The one observable 300 MHz or higher frequency is recommended.

• Digital voltmeter

• DC power supply or AC adapter

• Frequency counter (with threshold level adjuster)

4.1.3 TOOLS REQUIRED FOR ADJUSTMENT

Torque Driver

YTU94088

Chip IC Replacement Jig

PTS40844-2

INF Adjustment Lens

YTU92001B

Light box Assembly

YTU93096A

Alignment Tape

MC-1

INF Adjustment Lens Holder

Bit

YTU94088-003

Cleaning Cloth

KSMM-01

YTU94087

Gray Scale Chart

YTU94133A

PC Cable

QAM0099-002

Guide Driver (Hexagonal)

Camera Stand

YTU93079

Color Bar Chart

YTU94133C

Communication Cable

YTU93107A

Tweezers

P-895

D-770-1.27

Service Support System

YTU94057-81

Jig Connector Cable

YTU93106C

Extension Connector

YTU94145D-40

• Torque driver

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

• Bit

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

• Tweezers

To be used for removing and installing parts and wires.

• Chip IC replacement jig

To be used for adjustment of the camera system.

• Cleaning cloth

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

(No.YF042)1-17

Page 18

• Guide driver (Hexagonal)

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

• 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.

• INF lens holder

To be used together with the Camera stand 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.

• 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.

• 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.

• 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.

• 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.

• Alignment tape

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

• PC cable

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

• Communication cable

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

• Service support system

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

• Jig connector cable

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

• Extension connector

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

4.2 JIG CONNECTOR CABLE CONNECTION

 Connection procedure

GUIDE ROLLER (TU)

COVER

(ADJUST)

GUIDE ROLLER (SUP)

JIG CONNECTOR

COVER (JIG)

EXTENSION CONNECTOR

JIG CONNECTOR CABLE

TO GND

RED

WHITE

BLACK

TO JLIP_RX

TO JLIP_TX

COMMUNICATION CABLE

COMMUNICATION CABLEJIG CONNECTOR

SCREW

PC CABLE

FOR COMMUNICATION CABLE

TO ENV_OUT

SERVICE SUPPORT SYSTEM

RS232C COM PORT

PERSONAL COMPUTER

TO HID1

Fig.4-2-1

SCREW

OSCILLOSCOPEJIG CONNECTOR

1-18 (No.YF042)

Page 19

 Jig connector diagrams

JIG CONNECTOR CABLE

MAIN

CN111

DDI DDO DMS DCK

DRST

FL_MDO

RESET

AL_3VSYS

IF_TX JLIP_TX JLIP_RX

TMS_DSC TCK_DSC

TDI_DSC

TRST_DSC

TDO_DSC

PB_CLK

ENV_OUT

MAIN_VCO

ATFI HID1

DISCRI

FS_PLL

TXD2

SPA SBE

RXD2

GND GND

V_OUT

VCOM_M

CVF_B CVF_R CVF_G

HD_M

VCOM_E

EMU1

KENTO

MVD

NOTE :

The JIG CONNECTOR BOARD uses 30 of the 40 pins of the MAIN BOARD. 10 Pins (1 to 5, 21 to 24 and 34) on the JIG CONNECTOR BOARD on the Main board are NC.

JIG CONN. BOARD

(PIN NO.)

JLIP_RX

TCK_DSC

TRST_DSC

PB_CLK

MAIN_VCO

HID1

FS_PLL

SPA

RXD2

GND

VCOM_M

CVF_R

HD_M

KENTO

JLIP_TX

TMS_DSC

TDI_DSC

TDO_DSC

ENV_OUT

ATFI

DISCRI

TXD2

SBE

V_OUT

CVF_B

CVF_G

VCOM_E

EMU1

MVD

4.3 MECHANISM COMPATIBILITY ADJUSTMENT

4.3.1 Tape pattern adjustment

NOTE:

Prior to the adjustment, remove the COVER (ADJUST). (1) Play back the compatibility adjustment tape. (2) While triggering the HID1, observe the waveform of

ENV_OUT. (3) Set the manual tracking mode (ATF OFF). (4) Confirm that the waveform is entirely parallel and straight,

and free from remarkable level-down, through the tracking

operation.

Make the confirmation as follows if necessary. (5) If level-down is observed on the left hand side of the

waveform, straighten the level by turning the GUIDE

ROLLER (SUP).

If level-down is observed on the right hand side of the

waveform, straighten the

level by turning the GUIDE ROLLER (TU). (6) After the adjustment, try the unloading motion once, and

confirm that the waveform is flat when the tape has been

played back again. (7) Play back the self-recording. (8) Confirm that the waveform is flat.

ENV_OUT

HID1

Fig.4-3-1

Flatten the waveform.

Fig.4-2-2

Misalignment of guide roller height on the supply side

Misalignment of guide roller height on the take-up side

Fig.4-3-2

4.4 ELECTRICAL ADJUSTMENT

Electrical adjustment is performed by using a personal computer and software for SERVICE SUPPORT SYSTEM. Read README.TXT file to use the software properly. As for the connection of cables, see "4.2 JIG CONNECTOR CABLE CONNECTION".

(No.YF042)1-19

Page 20

5.1 SERVICE NOTE

SECTION 5

TROUBLE SHOOTING

[9]

[7] [8][1] [2] [3] [4]

[5] [6]

FA7

[5][11]

FA5 FA6

㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖

㧖

LO5

[7] OP BLOCK ASSEMBLY/CCD BOARD ASSEMBLY

Place to stick screw ψ

Screw tightening torque ψ

Removing order of screw ψ

Reference drawing (Fig.No.) ψ

[2] [3] [4] [6]

ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS(2)

㧖㧖

FA1 FA2 FA3 FA4

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 31

ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS(1)

[10] [1]

323334353637 1234567891011121314151617181920212223242526

㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖

LO2 LO3 LO4 LO6

a a

FA9FA8 LO1

[5] VF ASSEMBLY

123456789 123456789

3-2-4 3-2-5

㧖㧖㧖㧖

3-2-6

[12] MONITOR ASSEMBLY

㧖㧖㧖㧖㧖

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

1-20 (No.YF042)

e㧦0.078N㨯m(0.8kgf㨯EO f㧦0.196N㨯m(2.0kgf㨯EO g㧦0.246N㨯m(2.5kgf㨯EO㧕

a㧦0.118N㨯m(1.2kgf㨯EO b㧦0.088N㨯m(0.9kgf㨯EO c㧦0.098N㨯m(1.0kgf㨯EO d㧦0.069N㨯m(0.7kgf㨯EO

Symbol No. ψ

Place to stick screw ψ

Screw tightening torque ψ

Removing order of screw ψ

Reference drawing (Fig.No.) ψ

Symbol No. ψ

Place to stick screw ψ

Screw tightening torque ψ

Removing order of screw ψ

Reference drawing (Fig.No.) ψ

Place to stick screw ψ

Screw tightening torque ψ

Removing order of screw ψ

Place to stick screw ψ

Screw tightening torque ψ

Removing order of screw ψ

Reference drawing (Fig.No.) ψ

㧝) Mark* (position to attach screws)㧦To prevent screws from loosening, screws that use Lock are used.

㧨Notice㧪

Reference drawing (Fig.No.) ψ

࡮ The following values are specified values for attachment procedure in a production assembly line. Therefore, tighten screws at values under the following values.

A screw that is removed once must not be used, and a new specified screw must be used.

During the procedure, be careful enough not to damage screws and screw holes.

㧞) In tightening screws

࡮ Torque setting value of torque driver is limited. At the values over the maximum torque setting value, fasten a screw manually.

Page 21

5.2 TAKE OUT CASSETTE TAPE

(1) Remove the Power Unit (battery or DC code) from the set. (2) Open the CASSETTE COVER till it is completely opened

and fixed.

(3) Attach a PVC tape as shown in the figure.

NOTE:

Be careful of cassette tape damage caused because the CASSETTE HOUSING ASSEMBLY is moved upward at the unloading end (EJECT mode).

(4) To set the SLIDE DECK ASSEMBLY to the unloading end,

apply DC 3V to the electrode (terminal) on the top surface of the LOADING MOTOR ASSEMBLY that is seen through a hole under the plate removed in the procedure (2).

NOTE:

Be careful not to attach grease or a similar substance to the surface of the cassette tape on the tape transport system.

(5) Wind the cassette tape by directly turning the REEL DISK

ASSEMBLY (SUP) from the backside of the SLIDE DECK ASSEMBLY by using a sharp tool (Chip IC replacement tool).

(6) Confirm that the cassette tape is completely wound, and

then peel off the PVC tape from the CASSETTE HOUSING ASSEMBLY and take out the cassette tape.

NOTE:

To confirm that the cassette tape is completely wound, confirm that one REEL DISK ASSEMBLY (TU) rotates as you rotate the other REEL DISK ASSEMBLY (SUP).

(7) Make sure that grease or a similar substance is not

attached to the surface of the tape taken out in the procedure (7). Similarly, also make sure that grease or a similar substance is not attached on the MECHANISM ASSEMBLY, especially the tape transport system.

(DC3V)

LOADING MOTOR ASSEMBLY

REEL DISK ASSEMBLY (SUP)

SLIDE DECK ASSEMBLY

CASSETTE COVER

TAPE

CASSETTE HOUSING ASSEMBLY

Fig.5-2-1

(No.YF042)1-21

Page 22

5.3 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 nately appear over and

E01 UNIT IN SAFEGUARD MODE

E01 REMOVE AND REATTACH BATTERY

over.

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

LCD display Emergencymode Details Possible cause

E01 LOADING In the case the encoder position is

not shifted to the next point though the loading motor has rotated in the loading direction for 4 seconds or more. This error is defined as [E01].

E02 UNLOADING In the case the encoder position is

not shifted to the next point though the loading motor has rotated in the unloading direction for 4 seconds or

1. The mechanism is locked during mode shift.

2. The mechanism is locked at the mechanism loading end, because the encoder position is skipped during mechanism mode shift.

3. No power is supplied to the loading MDA.

1. The mechanism is locked during mode shift.

2. The mechanism is locked at the mechanism loading end, because the encoder position is skipped during mechanism mode shift.

more. This error is defined as [E02].

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

produced for seconds shown in the table below 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.

REEL(SUP) REEL(TU)

PB/REC S-FWD S-REW FF REW

3 SEC 3 SEC

0.3 SEC 3 SEC

0.1 SEC

3 SEC

0.3 SEC 3 SEC

0.1 SEC 3 SEC

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

element).

2. No capstan control voltage is supplied to the MDA.

3. 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.)

Fig.5-3-1

1-22 (No.YF042)

Page 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 (416)293-1311

(No.YF042)

Printed in Japan

WPC