JVC KD-LX10 Bedienungsanleitung

SERVICE MANUAL

CD RECEIVER

No.49537

Feb. 2000

This service manual is made from 100% recycled paper.

Printed in Japan

200002(O)

VICTOR COMPANY OF JAPAN, LIMITED

MOBILE ELECTRONICS DIVISION,10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan

KD-LX10

KD-LX30

(No.49537)

KD-LX10/KD-LX30

Area Suffix

J ---- Nortern America

Contents

Safety precaution 1-2

Instructions 1-3~

Disassembly method 2-1

Adjustment method 2-4

Maintenance of laser pickup 2-14

Replacement of lase pickup 2-14

Extention code connecting method 2-15

Functions of the mechanism under

the servise mode 2-18

Flow of functional until TOC read 2-20

Description of major ICs 2-23

Block diagrams 2-39

Standard schematic diagrams 2-41

Printed circuit board 2-45,46

Parts list 3-1~7

!CAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore,

pay attention to such burrs in the case of preforming repair of this system.

Safety precaution

!CAUTION Please use enough caution not to see the beam directly or touch it in case of an

adjustment or operation check.

KD-LX10/KD-LX30

2-1

Remove the two screws A attaching the bottom

cover to the top chassis on the bottom of the body.

Remove the two screws B attaching the top chassis

on both sides of the body.

Remove the two screws C and the two screw D

attaching the heat sink on the left side of the body.

Remove the two screws E and the screw F on the

back of the body.

Remove the two screws G on the upper side of the

body.

Move the top chassis upward and disconnect the CD

mechanism connector from the main board

connector by pulling it. Remove the top chassis from

the body.

Disassembly method

Removing the top chassis

(See Fig.1 to 5)

Fig.1

Fig.2

Fig.3

Fig.4-1 (KD-LX30)

Fig.4-2 (KD-LX10)

Fig.5

Bottom cover

Top chassis

Heat sink

EFTop chassis

KD-LX10/KD-LX30

2-2

Prior to performing the following procedure, remove

the top chassis.

Disconnect the flexible harness from connector

CN701, the card wire from CN702 on the main board

and the harness from CN503 and CN504

respectively.

Remove the three screws H attaching the main

board assembly to the bottom cover on the upper

side of the body.

Remove the screw I attaching the rear panel and the

bottom cover on the back of the body. Move the

main board in the direction of the arrow and release

the two joints a. (At this point, the main board can be

removed with the rear panel and the rear heat sink.)

Remove the screw J and the two screws K

attaching the rear heat sink on the back of the body.

Remove the two screws L and the screw M

attaching the rear panel. Now, the main board

assembly will be removed.

Removing the main board assembly

(See Fig.6 and 7)

when reassembling, correctly engage

the switch S561 and S562 on the main

board with the part e of the operation

assembly (Refer to Fig.6-3).

ATTENTION:

Fig.6-1 (KD-LX30)

Fig.6-2 (KD-LX10)

Fig.7-1 (KD-LX30)

Fig.7-2 (KD-LX10) Fig.6-3

CN504

CN701

Front panel assembly

CN702

CN503

CN504

CN701

Front panel assembly

CN702

S652

CN503

Main board S651

Rear panel

Rear heat sink

Rear panel

Rear heat sink

Joint a Joint a

KD-LX10/KD-LX30

2-3

Prior to performing the following procedure, remove

the top chassis assembly.

Disconnect the flexible harness from connector

CN701 on the main board assembly.

Remove the four screws N attaching the front panel

assembly on both sides of the body. Remove the

front panel toward the front.

Removing the front panel assembly

(See Fig.6,8 and 9)

Prior to performing the following procedure, remove

the top chassis assembly and the front panel

assembly.

Remove the four screws O attaching the front board

on the back of the front panel assembly and release

the eight joints b.

Removing the Front Board (See Fig.10)

Fig.6-1 (KD-LX30)

Fig.6-2 (KD-LX10)

Fig.8

Fig.9

Fig.10

CN504

CN701

Front panel assembly

CN702

CN503

CN504

CN701

Front panel assembly

CN702

CN503

CN701

Front panel assembly

Joints b

Joint a Joint a

KD-LX10/KD-LX30

2-4

Prior to performing the following procedure, remove

the top chassis assembly and the front panel

assembly.

Disconnect the harness from connector CN503and

CN504 on the main board.

Remove the four screws P and detach the lifter unit

from the bottom cover.

Removing the lifter unit (See Fig.11)

Prior to performing the following procedure, remove

the lifter unit.

Remove the washer attaching the clutch assembly

and detach the clutch assembly from the shaft of the

lifter unit.

Remove the two screws Q attaching the feed motor

(L).

Removing the feed motor (L) (See Fig.12)

Prior to performing the following procedure, remove

the lifter unit.

Remove the washer attaching the clutch assembly

and detach the clutch assembly from the shaft of the

lifter unit.

Remove the two screws R attaching the feed motor

(R).

Removing the feed motor (R) (See Fig.13)

Clutch assembly

Fig.11-1 (KD-LX30)

Lifter unit assembly

CN504

CN503

Fig.11-2 (KD-LX10)

Fig.12Fig.13

Lifter unit assembly

CN504

CN503

Lifter unit assembly

Feed motor (L) assembly

Washer Q

Clutch assembly

Washer

Feed motor (R) assembly

Lifter unit assembly

KD-LX10/KD-LX30

2-5

Prior to performing the following procedure, remove

the top chassis assembly, the front panel assembly

and the lifer unit.

Remove the screws S attaching the right and left

brackets which fix gears on both sides of the

operation assembly.

Remove the springs 5 and 6 from the operation

assembly.

Disconnect the card wire from connector CN702 on

the main board and remove the operation assembly.

Removing the operation assembly

(See Fig.14 to 17)

when reassembling, correctly engage

the switch S561 and S562 on the main

board and the right gear with the part e

of the operation assembly.

ATTENTION: Fig.14

Fig.15

Fig.16Fig.17

Spring 6

CN702

Operation assembly

Spring 5

Operation assembly e

S652

S651

Operation assembly

Operation assembly e

S652 S651

Bracket (R) Bracket (L)

Bracket (R)

KD-LX10/KD-LX30

2-6

Prior to performing the following procedure, remove

the operation assembly.

Remove the six screws T attaching the button panel

on the operation assembly.

Pull out the operation switch board from inside of the

button panel.

Removing the operation switch board

(See Fig.18 and 19)

Prior to performing the following procedure, remove

the top chassis.

Remove the three screws U and the CD mechanism

assembly from the top chassis.

Removing the CD mechanism assembly

(See Fig.20)

Button panel

Operation switch board

Button panel

CD mechanism assembly

Fig.18

Fig.19

Fig.20

KD-LX10/KD-LX30

2-7

Fig.1

Fig.2

Fig.3

Fig.4

Front bracket

CD mechanism

control board

Shift the lock

Flexible wire

Pickup unit

FD gear

CD mechanism control board

Loading motor Front bracket

Front bracket Pull outward

Pull outward

Flame

Damper bracket

Double-sided tape

Pickup cover N

Remove the screw N and the pickup cover attached

to the front bracket with the two double-sided tapes.

Unsolder the part f and g on the CD mechanism

control board.

Remove the stator fixing the CD mechanism control

board and the damper bracket (To remove the stator

smoothly, pick up the center part).

Remove the screw F attaching the CD mechanism

control board.

Remove the CD mechanism control board in the

direction of the arrow while releasing it from the two

damper bracket slots i and the front bracket slot j.

Disconnect the flexible wire from connector on the

pickup unit.

Removing the CD mechanism control

board (See Fig.1 and 2)

Turn the FD gear in the direction of the

arrow to move the entire pickup unit to

the appropriate position where the

flexible wire of the CD mechanism unit

can be disconnected easily (Refer to

Fig.2).

ATTENTION:

Prior to performing the following procedure, remove

the CD mechanism control board and the pickup

cover.

Remove the two springs k attaching the CD mechanism

ass’y and the front bracket.

Remove the two screws G and the front bracket

while pulling the flame outward.

Remove the belt and the screw H from the loading

motor.

Removing the loading motor

(See Fig.3 to 5)

KD-LX10/KD-LX30

2-8

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Rear damper bracket

Fix arm (R)

Damper

Damper bracket

CD mechanism ass’y

Flame m

Fix plate (L)

Rear damper bracket

Fix arm (L)

Damper

Fix plate(R)

Loading motor

Belt

Prior to performing the following procedure, remove

the CD mechanism control board and the front

bracket (loading motor).

Remove the three screws I and the damper bracket.

Raise the both sides fix arms and move the fix plates

in the direction of the arrow to place the four shafts l

as shown in Fig.8 and 9.

Remove the CD mechanism ass’y and the two

springs m attaching the flame.

Remove the two screws J and both sides rear

damper brackets from the dampers. Detach the CD

mechanism ass’y from the left side to the right side.

Removing the CD mechanism ass’y

(See Fig.1, 6 to 9)

The CD mechanism ass’y can be

removed if only the rear damper

bracket on the left side is removed.

ATTENTION:

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