JVC DXJ-11, DXJ-21, DXJ-36 Service manual

SERVICE MANUAL

COMPACT COMPONENT SYSTEM

MB666<Rev.005>20092SERVICE MANUAL

DX-J36UN, DX-J3 6EE, DX-J36UX, D X-J36UG, DX-J36US,

DX-J36UW, DX-J2 1U N, DX -J2 1J, DX -J21EE , DX-J21 A,
DX-J21UW, D X-J21UX,DX-J21UG, DX-J11U N, DX-J11EE,
DX-J11UW, D X-J11UX, DX-J11UG, DX-J11 UH, DX-J11US

DX-J36

SP-DXJ36F SP-DXJ36F

SP-DXJ36S SP-DXJ36S

SUPER VIDEO

COPYRIGHT © 2009 Victor Company of Japan, Limited

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)

SP-DXJ36C

CA-DXJ36

DX-J21

SP-DXJ21W SP-DXJ21F CA-DXJ21 SP-DXJ21F

DX-J11

SP-DXJ11 CA-DXJ11 SP-DXJ11

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

COPYRIGHT © 2009 Victor Company of Japan, Limited

No.MB666<Rev.005>

2009/2

SPECIFICATION

DX-J21/DX-J11

Amplifi er section

Output Power FRONT SPEAKERS

SUBWOOFERS
Digital output
Digital input USB MEMORY
Audio input sensitivity/Impedance Measured at 1 kHz with tape recording signal 300 mV
AUX 400 mV/47 kΩ
MIC1/2 3.0 mV/50 kΩ
VIDEO OUT Color system NTSC/PAL
VIDEO (composite) S-VIDEO Y (luminance) 1 V(p-p)/75 Ω

Speaker Terminals 6Ω - 16 Ω (front speakers/subwoofers)

FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 710 kHz (at 9 kHz)

For Saudi Arabia 531 kHz - 1 602 kHz (at 9 kHz)

For Russia 522 Khz - 1 629Khz

Region codes Middle East 2

Playable disc DVD Video/CD/VCD/SVCD/CD-R/CD-RW (MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)

Playable file MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format
Dynamic range 80 dB
Horizontal resolution 500 lines
Wow and flutter Immeasurable

USB specification Compatible with USB 2.0 Full Speed
Compatible device Mass storage class
Compatible file system FAT 16, FAT 32
Bus power supply 5 V/500 mA

Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)

Power requirement
For Australia AC 240 V 〜, 50 Hz
For Russia AC 230 V
Power consumption DX-J11UN 95 W (at operation) / 15 W (on standby)

Dimensions(W/H/D) (approx.)
Mass (approx.) DX-J11UN 8.9 kg

Design and specifications are subject to change without notice.

OPTICAL DIGITAL OU TPUT

530 kHz - 1 710 kHz (at 10 kHz)

530 kHz - 1 600 kHz (at 10 kHz)

South East Asia 3

Central and South America, Australia 4

DVD-R/-RW (DVD-VR/DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)

DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/Di vX format)

AC 110 V / AC 127 V / AC 220 V / AC 230 V 〜 AC 240 V〜 (adjustable with the voltage selector) 50 Hz / 60 Hz

〜

, 50 Hz

DX-J21UN 140 W (at operation) / 16 W (on standby

185 mm x 370 mm x 372 mm

DX-J21UN 9.3 kg

(DX-J21)120 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
(DX-J11)125 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
(DX-J21)120 W min. RMS driven into 6Ω at 63 Hz with no more than 10% total harmonic distortion.

-21 dBm to -15 dBm (660 nm ±30 nm)

C (chrominance, burst) 1 V(p-p)/75 Ω
NTSC 0.286 V(p-p)/75Ω
PAL 0.3 V(p-p)/75Ω

Tuner section

Disc/File player section

USB storage section

Cassette deck section

General

1-2 (No.MB666<Rev.005>)

DX-J36

Amplifier section

Output Power FRONT SPEAKERS

SURROUND SPEAKERS

CENTER SPEAKER
Audio output SUBWOOFER OUT
Digital input USB memory
Audio input sensitivity/Impedance Measured at 1 kHz with tape recording signal 300 mV
AUX 400 mV/47 k
MIC1/2 3.0 mV/50 k
VIDEO OUT Color system NTSC/NTSC PROG/PAL/PAL PROG
VIDEO (composite) S-VIDEO Y (luminance) 1 V(p-p)/75

COMPONENT

(Interlace/Progressive)
Speaker Terminals 6Ω - 16 Ω (front/surround/center)

FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 710 kHz (at 9 kHz)

530 kHz - 1 710 kHz (at 10 kHz)
For Saudi Arabia 531 kHz - 1 602 kHz (at 9 kHz)

530 kHz - 1 600 kHz (at 10 kHz)
For Russia 522 kHz - 1 629 kHz

Region codes Middle East 2

South East Asia 3

Central and south America, Australia 4
Playable disc

Playable file MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format
Dynamic range 80 dB
Horizontal resolut ion 500 li nes
Wow and flutter Immeasurable

USB specification Compatible with USB 2.0 Full-Speed
Compatible device Mass storage class
Compatible file system FAT 16, FAT 32
Bus power supply 5 V/500 mA

Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)

Power requirement AC 110 V / AC 127 V / AC 2 20 V / AC 230 V - AC 240 V
For Australian model AC 240 V
For Russia AC 230 V
Power consumption 205 W (at operation) / 21 W (on standby)
Dimensions (W/H/D) (approx.)
Mass (approx.) 9.5 kg

Design and specifications are subject to change without notice.

DVD Video/DVD Audio/CD/VCD/SVCDCD-R/CD-RW (CD/VCD/SVCD/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)

DVD-R/-RW (DVD-VR/DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)

DVD-ROM (DVD-video/MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)

185 mm x 370 mm x 372 mm

Ω

Ω

〜

, 50 Hz

〜

, 50 Hz

125 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
50 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
50 W min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.

Ω

C (chrominance, burst) 1 V(p-p)/75
NTSC 0.286 V(p-p)/75
PAL 0.3 V(p-p)/75
(Y) 1 V(p-p)/75
(PB/PR) 0.7 V(p-p)/75

Tuner section

Disc/File player section

USB storage section

Cassette deck section

General

〜

Ω

Ω

Ω

Ω

Ω

(adjustable with the voltage selec tor) 50 Hz / 60 Hz

(No.MB666<Rev.005>)1-3

SECTION 1

PRECAUTION

1.1 Safety Precautions

(1) This design of this product contains special hardware and

many circuits an d compo nents spec ially f or saf ety purpos ­es. For continued protection, no changes should be made
to the original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to
those used in the original circuits. Services should be per­formed by qualified personnel only.

(2) Alterations of the design or circuitry of the product should

not be made. Any design alterations of the product should
not be made. Any design alterations or additions will void
the manufacturers warranty and will further relieve the
manufacture of respons ibility for p ersonal injury or p roperty
damage resulting therefro m.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteris­tics are often not eviden t from visu al inspec tion nor ca n the
protection afforded by the m necessaril y be obtained by us­ing replacement compo nents rated for higher vo ltage, watt­age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts Lis t of Se r­vice Manual. Electrical components having such features
are identified by shadin g on the schema tics and by ( ) on
the Parts List in the Servic e Manual. The use of a s ubstitute
replacement whic h d oe s not ha ve the same safety c ha rac ­teristics as the recommended replacement parts shown in
the Parts List of Service Manual may create shock, fire, or
other hazards.

(4) The leads in the products are routed and dressed with ties,

clamps, tubings, barri ers and the l ik e to b e se para ted from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after reassem­bling.

(5) Leakage shock hazard testing

After reassembling the product, always perform an isola­tion check on the exposed metal parts of the product (an­tenna terminals, knobs, metal cabinet, screw heads,
headphone jack, co ntrol shaf ts, etc.) to be sure t he prod uct
is safe to operate w ithou t dange r of el ectric al sh ock.Do not
use a line isolation transformer during this check.

• Plug the AC line cord directly into the AC outlet. Using a
"Leakage Current Tes t er" , me as ure t he l eak ag e current
from each exposed metal pa rts of the cabine t, particula r­ly any exposed metal part having a return path to the
chassis, to a know n good earth ground. Any le akage cur­rent must not exceed 0.5mA AC (r.m.s.).

• Alternate check method
Plug the AC line cord directly into the AC outlet. Use an
AC voltmeter having, 1,000Ω per volt or more sensitivity
in the following mann er. C o nne ct a 1,50 0Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor betw een an ex­posed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC

voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Voltage measured any must
not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).

AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)

0.15 F AC TYPE

Place this
probe on

1500 10W

Good earth ground

1.2 Warning

(1) This equipment has been designed and manufactured to

meet international safety standards.

(2) It is the legal responsibility of the repairer to ensure that

these safety standards are maintained.

(3) Repairs must be made in accordance with the relevant

safety standards.

(4) It is ess entia l that safe ty crit ical c ompon ents are re place d

by approved parts.

(5) If mains voltage selector is pro vided, ch eck set ting for loc al

voltage.

1.3 Caution
Burrs formed during molding ma y be left over on some parts

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

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB di agra ms , the parts that are
printed over with black such as the resistor ( ), diode ( )
and ICP ( ) or identified by the " " mark nearby are critical
for safety. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)

each exposed
metal part.

1-4 (No.MB666<Rev.005>)

1.5 Preventing static electricity

Electrostatic discharge (ESD), w hi ch occurs w hen sta tic ele ct ricit y sto red i n the bod y, fa bric , etc. is discharged, ca n de stroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

1.5.1 Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.
Be careful to use proper grounding in the area where repairs are being performed.

(1) Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.

(2) Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(caption)
Anti-static wrist strap

1M

Conductive material
(conductive sheet) or iron palate

(3) Handling the optical pickup

• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)

• Do not use a tester to check the condit ion of the la ser diode i n the optica l pickup . The tester' s internal power so urce can ea sily
destroy the laser diode.

1.6 Handling the traverse unit (optical pickup)

(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nip pers, etc. afte r replacing th e optical pi ckup. For speci fic details, refe r to the

replacement procedure in th e t ext . R em ove the anti-static pin w he n re pla cing the traverse unit. Be c arefu l not to tak e to o l on g a

time when attaching it to the connector .
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.7 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the pickup unit.

• Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wire
is disconnected without applying solder, the pickup may be destroyed by static electricity.)

• In the assembly, be sure to remove solder from the short land sections after connecting the card wire.

Solder short land section

(No.MB666<Rev.005>)1-5

1.8 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able
to function.

6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.

!

Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

REPRODUCTION AND POSITION OF LABELS and PRINT

WARNING LABEL and PRINT

1-6 (No.MB666<Rev.005>)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

SECTION 3

DISASSEMBLY

3.1 Main body (Used figure are DX-J11)

3.1.1 Removing the Metal cover (See Fig.1, 2)

(1) Remove the four screws A attaching the both side of the

Metal Cover. (See Fig.1)

(2) Remove the two screws B attaching the Rear cover. (See

Fig.2)

(3) Remove the seven screws C attaching the Metal cover.

(See Fig.2)

A

C

C

C

C

Fig.1

C

B

C

C

Fig.2

(No.MB666<Rev.005>)1-7

3.1.2 Removing the DVD mechanism (See Fig.3 to 5)

(1) Disconnect the card wire from Micom board connected to

connector CN701
Fig.3)

(2) Disconnect the card wire from Amp board connected to

connector CN702

(3) Remove the two screws D attaching the DVD mechanism.

(See Fig.4)

(4) Disconnect the connector wire from USB jack board con-

nected to connect or CN811
Fig.5)

and CN801 of the Front end board. (See

of the Front end board. (See Fig.3)

of the Front end board. (See

CN702

D

Fig.3

Fig.4

CN701

CN801

D

CN811

1-8 (No.MB666<Rev.005>)

Fig.5

3.1.3 Removing the Video board (See Fig.6, 7)

(1) Disconnect the card wire from Micom board connected to

connector CN931

(2) Remove the two screws E attaching the Video board . (See

Fig.7)

of the Video board. (See Fig.6)

CN931

Fig.6

3.1.4 Removing the Mecha chassis (See Fig.8, 9)

(1) Remove the two screws F attaching the Mecha chassis.

(See Fig.8)

(2) Remove the two screws G attaching the both side of the

Mecha chassis. (See Fig.9)

E

Fig.7

F

Fig.8

G

Fig.9

(No.MB666<Rev.005>)1-9

3.1.5 Removing the Fan (See Fig.10, 11)

(1) Disconnect the4 connector wire from Fan connected to

connector CN630

(2) Remove the one screw H attaching the Fan. (See Fig.11)

3.1.6 Removing the Tuner pack (See Fig.10, 11)

(1) Disconnect the card wire from Tuner pack connected to

connector CN507

(2) Remove the two screws J attaching the Tuner pack. (See

Fig.11)

of the Micom board. (See Fig.10)

of the Micom board. (See Fig.10)

CN507

CN630

Fig.10

H

3.1.7 Removing the Rear panel (See Fig.12)

(1) Remove the three screws K attaching the Heat sink.
(2) Remove the six screws L attaching the Rear pane l.

J

Fig.11

K

L

Fig.12

1-10 (No.MB666<Rev.005>)

3.1.8 Removing the Amp board (See Fig.13)

(1) Disconnect the Earth wire from Bottom chassis connected

to post pin PP701

(2) Disconnect the flat cable wire from Micom boa rd connected

to connector CN700

(3) Disconnect the card wire from Mic board conn ected to con-

nector CN750 of the Amp board.

(4) Disconnect the card wires from Mico m b oard connected to

connectors CN705

(5) Disconnect the flat cable wire from Headphone jack board

connected to connector CN760

(6) Remove the one screw M attaching the Amp board.

3.1.9 Removing the Micom board (See Fig.14, 15)

(1) Disconnect the card wire from FL board connected to con-

nector CN500

(2) Disconnect the card wire from Cass ette mec hanism A con-

nected to connector CN501 of the Micom board. (See
Fig.14)

(3) Disconnect the flat cable wire from PLAY button board con-

nected to connector CN430
Fig.14)

(4) Remove the four screws N attaching the Pow er tran sfo rm-

er. (See Fig.15)

of the Amp board.

, CN701 and CN702 o f the Amp board.

and CN706 of the Amp board.

of the Amp board.

of the Micom board. (See Fig.14)

of the Micom board. (See

CN760

CN706
CN705

Fig.13

CN501

CN750

M

CN702
CN701
CN700

PP701

CN500

CN430

Fig.14

N

N

Fig.15

(No.MB666<Rev.005>)1-11

3.1.10 Removing the Front panel (See Fig.16 to 18)

(1) Remove the one screw P attaching the Ea rth wire. (See

Fig.16)

(2) Remove the one screw Q attaching the Earth wire. (See

Fig.17)

(3) Remove the two screws R attaching the Front panel. (See

Fig.18)

(4) Disengage two hooks a engaged both side of the Front

panel. (See Fig.17)

P

Fig.16

Q

hook a

Fig.17

R

Fig.18

1-12 (No.MB666<Rev.005>)

3.1.11 Removing the Cassette mechanism (See Fig .19 to 21)

(1) Disconnect the connector wire from Cassette mechanism

B connected to connec to r CN200
(See Fig.19)

(2) Disconnect the card wire f rom Cass ette mec hanism B con-

nected to connector CN120
Fig.19)

(3) Remove the two screws S attaching the Cassette mecha-

nism A. (See Fig.19)

(4) Remove the two screws T attaching the Earth wires. (See

Fig.19)

(5) Remove the two screws U attaching the Bracket board.

(See Fig.20)

(6) Remove the three screws V attaching the Cassette mech-

anism B. (See Fig.21)

of the Cassette board A.

of the Cassette board A. (See

CN200

S

T

CN120

Fig.19

V

U

Fig.20

V

Fig.21

(No.MB666<Rev.005>)1-13

3.1.12 Removing the Mic board (See Fig.22)

(1) Remove the volume knob.
(2) Remove the two screws W attaching the Mic board.

3.1.13 Removing the USB jack board and Headphone jack board (See Fig.23)

(1) Remove the two screws X attaching the bracket board.

W

Fig.22

3.1.14 Removing the FL board (See Fig.24)

(1) Remove the Volume knob.
(2) Remove the five screws Y attaching the Function board.
(3) Remove the four screws Z attaching the PLAY button

board.

(4) Remove the five screws AA attaching the EJECT button

board.

(5) Remove the seven screws BB attaching the FL board.

X

Fig.23

BB

1-14 (No.MB666<Rev.005>)

Z

AA

Y

Fig.24

3.2 DVD changer mechanism assembly section

Remove the DVD changer mechanism assembly from the main body. (See "Removing the DVD changer mechanism assembly".)

3.2.1 Removing the tray assemblies

(See Figs.1 to 5)

(1) From the top side of the main body, remove the two screws

A from the top cover and release the two joints a on the
both sides of the DVD changer mechanism assembly. (See
Figs.1 and 2.)

(2) Remove the two rods from the top cover and remove the

top cover from the lifter assembly. (See Figs.1 and 2.)

(3) Remove the open det. lever on the left side of the DVD

changer mechanism assembly. (See Fig.3.)

(4) From the right side of the DVD changer mechanism as-

sembly, draw out the tray a ssemblies to ward the f ront while
pushing th e part b of the side (R) assembly. (See Figs.4
and 5.)

Note:

The tray can be locked if all tray assemblies are at­tached.

(5) From the topside of the DVD changer mechanism assem-

bly, move the stopper tabs c in the direction of the arrow
and release them. Pull out the tray assemblies from the
DVD changer mechanism assembly. (See Fig. 5.)

Note:

Remove the tray assembly from top tray 5 in order.

Reference:

When reattaching the tray assembly, or when removing the
disc remaining inside, refer to another section "3.3.15 Taking
out the disc in the play mode".

A

a

Lifter assembly

Fig.1

Rods

Top cover

A

a

Rods

Top cover

a

a

Lifter assembly

Fig.2

(No.MB666<Rev.005>)1-15

Fig.3

r

Open det. leve

Tray assemblies

b

Fig.4

Side(R) assembly

Tray assembly

c

1-16 (No.MB666<Rev.005>)

Fig.5

3.2.2 Removing the DVD servo board

(See Figs.6 to 8)

Caution:

Solder the short land sections d on the DVD pickup before dis­connecting the card wire extending from the DVD pickup. If
you do not follow th is instruction, the DVD pic kup may be d am­aged.
(1) From the topside of the DVD changer mechanism assem-

bly, solder the short land sections d on the DVD pick up.
(See Fig.6.)

(2) From the bottom side of the DVD changer mechanism as-

sembly, disconnect the card wire from the connectors
(CN201

Reference:

(3) Disconnect the wires from the conne ctors (CN452

on the DVD servo board. (See Fig.7.)

(4) Remove the two screws B attaching th e DV D servo board.

(See Fig.7.)

(5) From the reverse side of the DVD servo board, release the

lock of the connector CN101
and disconnect the card wire. (See Fig.8.)

Caution:

Unsolder the solder s from t he short lan d secti ons d af ter reas­sembling. (See Fig.6.)

3.2.3 Removing the switch board

(1) From the bottom side of the DVD changer mechanism as-

sembly, remove the screw C attac hing th e swi tch boa rd on
the DVD changer mechanism assembly.

(2) Disconnect the wires from the conne ctors (CN452

on the DVD servo board.

(3) Release the wires from the section f and remo ve the switch

board.

(4) Release the wires from the sections g and remove the

switch board.

Reference:

When reassembling, pass the wires thro ugh the secti ons (f, g)
as before.

, CN451) on the DVD servo board. (See Fig.7.)

When connecting the c ard w ir e to the connect or CN451
pass it through the sections e on the DVD traverse
mechanism assembly. (See Fig.7.)

, CN453)

in the direction of the arrow

(See Fig.7)

, CN453)

d

,

DVD changer mechanism assembly

Fig.6

DVD changer mechanism assembly

e

CN451

DVD pickup

CN453

f

g

Switch board

B

C

CN201

DVD servo board

DVD traverse mechanism assembly

DVD servo board

B

Fig.7

CN452

CN101

Lock

Fig.8

(No.MB666<Rev.005>)1-17

3.2.4 Removing the motor board
(See Figs.9 and 10)

(1) From the top side of the DVD changer mec ha nis m a ssem -

bly, remove the two belts from the motor pulleys. (See
Fig.9.)

Note:

Take care not to attach grease on the belt.

(2) Remove the two screws D attaching th e motors to th e load-

er assembly. (See Fig.9.)

(3) From the bottom side of the DVD changer mechanism as-

sembly, remove the two screws E. (See Fig.10.)

(4) Disconnect the connecto r CN2

tray switch board and remove the motor board. (See
Fig.10.)

(5) Disconnect the card wire from the connector CN1

forward side of the motor board. (See Fig.10.)

Note:

When connecting the card wire, let the card wire through the
slots h of the motor board. (See Fig.10.)

Reference:

You need not to remove the tray assemblies, an d in such case,
move it.

3.2.5 Removing the motor
(See Fig. 10)

• Remove the motor board.

(1) From the reverse side of the mot or board, un solder the fou r

soldered sections i on the motor board.

(2) From the forward side of the motor board, remove the mo-

tors.

on the motor bo ard from the

on the

Belt

D

Motor Motor

Motor pulleys

Fig.9

Motors

Motor board

Belt

D

Loader assembly

i

Tray switch
board

E

CN2

CN1

h

DVD changer mechanism assembly

Fig.10

Motors

Motor board

E

1-18 (No.MB666<Rev.005>)

3.2.6 Removing the DVD traverse mechanism assembly

(See Fig.11)

• Remove the tray assemblies and DVD ser vo boa rd.

(1) From the bottom side of the DVD changer mechanism as-

sembly, remove the three screws F attaching the DVD

traverse mechanism assembly.
(2) Remove the wires from the section j.
(3) Take out the DVD traverse mechanism assembly from the

DVD changer mechanism assembly.

DVD changer mechanism assembly

F

j

F

F

DVD traverse mechanism assembly

Fig.11

(No.MB666<Rev.005>)1-19

3.2.7 Removing the DVD pickup
(See Figs.12 to 14)

• Remove the tray assemblies, DVD servo board and DVD

traverse mechanism assembly.
(1) From the top side of the DVD traverse mechanism assem-

bly, release the lock of the connector on the DVD pickup
and disconnect the card wire in the direction of the arrow.
(See Fig.12.)

(2) Turn the screw shaft gear in the direction of the arrow 1 to

move the DVD pickup in the direction of the arrow 2. (See
Fig.12.)

(3) Remove the screw G attaching the feed bracket and re-

move the feed bracket from the sections k. (See Fig.12.)

(4) Release the claw m of the thrust spring in the direction of

the arrow and remove the thrust spring. (See Fig.12.)

(5) Remove the guide shaft from the sections (n, p) on the

C.TM chassis. (See Fig.13.)
(6) Remove the section q of the DVD pickup. (See Fig.13.)
(7) Remove the two screws H attaching the rack arm spring

and rack arm. (See Fig.14.)
(8) Pull the guide shaft from th e DV D pi ck up in the direct ion of

the arrow. (See Fig.14.)

3.2.8 Attaching the DVD pickup
(See Figs.12 to 14)

(1) Attach the guide shaft to the DVD pickup and attach the

rack arm spring and rack arm with the screws H. (See
Fig.14.)

(2) Attach the section q of the DVD pickup to the C.TM cha ssis

first and attach the guide shaft to the sections (n, p). (See
Fig.13.)

Reference:

When attaching the guide shaft to the se ction p, attach i t
under the rod spring. (See Fig.13.)

(3) Attach the thrust spring and feed bracket with the s crew G.

(See Fig.12.)

(4) Turn the screw shaft gear in the direction of the arrow 1 to

move the DVD pickup in the direction of the arrow 2. (See
Fig.15.)

(5) Connect the card wire to the connect or on the DVD pi ckup.

(See Fig.15.)

DVD traverse mechanism assembly

Thrust spring

Connector

Screw shaft gear

DVD pickup

Fig.12

DVD pickup

1

k

Thrust spring

q

Feed bracket

2

G

m

1-20 (No.MB666<Rev.005>)

p

Rod spring

n

Guide shaft

C.TM chassis

Fig.13

Guide shaft

DVD pickup

Rack arm

H

Rack arm spring

Fig.14

Connector

DVD pickup

222

Screw shaft gear

Fig.15

1

(No.MB666<Rev.005>)1-21

3.2.9 Removing the spindle motor board
(See Figs.16 and 17)

• Remove the tray assemblies, DVD servo board and DVD

traverse mechanism assembly.
(1) From the top side of the DVD traverse mec ha nis m a ss em -

bly, remove the wires from the soldered sections r on the
spindle motor board. (See Fig.16.)

(2) From the bottom side of the DVD traverse mechanism as-

sembly, remove the three screws J attaching the spindle
motor board. (See Fig.17.)

Reference:

When attaching the spindle motor board, let the card wire
through the hole s on the C.TM chassis. ( See Fig.17. )

DVD traverse mechanism assembly

Spindle motor board

r

Fig.16

DVD traverse mechanism assembly

s

J

C.TM chassis

Fig.17

1-22 (No.MB666<Rev.005>)

3.2.10 Removing the feed motor

(See Figs.18 and 19)

• Remove the tray assemblies and DVD traverse mechanism

assembly.
(1) From the top side of the DVD traverse mechanis m as s em-

bly, remove the screw K at taching th e fe ed brac ket an d re­move the feed bracket from the sections t. (See Fig.18.)

(2) Release the claw u of the thrust spring in the direction of

the arrow and remove the thrust spring. (See Fig.18.)

(3) Remove the screw shaft from the section v and remove it

in the direction of the arrow. (See Fig.19.)
(4) Remove the middle gear. (See Fig.19.)
(5) Remove the screw L attaching the feed motor to the C.TM

chassis. (See Fig.19.)
(6) Remove the wires from the soldered sections w on the

spindle m otor board. (See Fig. 19.)
(7) Take out the feed motor from the motor base.

Reference:

After attaching the feed m otor, pas s the wires thro ugh the s ec­tions x on the C.TM chassis as before. (See Fig.19.)

Feed bracket

Thrust spring

K

t

Thrust spring

Spindle motor board

w

x

Fig.18

Middle gear

v

Screw shaft

u

C.TM chassis

L

Fig.19

(No.MB666<Rev.005>)1-23

3.2.11 Removing the side (L) and tray switch board
(See Figs.20 to 22)

• Remove the tray assemblies.

(1) From the topside of the DVD changer mechanism assem-

bly, remove the two screws M attaching the side (L). (See
Fig.20.)

(2) From the left side of the DVD changer mechanism assem-

bly, disconnect the con nector CN3
from the motor board and de tac h th e s id e (L) in an u pw ard
direction. (See Fig.21.)

(3) Remove the screw N attaching the tray switch board to the

side (L). (See Fig.22.)

(4) Release the joint tab y of the side (L) in the direction of the

arrow 1 and release the joint tab z while removing the tray
switch board in the direction of th e arrow 2. (See Fig.22.)

on the tray switch board

SIde(L)

M

M

DVD changer mechanism assembly

Fig.20

M

Side(L)

M

CN3

Tray switch board

Motor board

Side(L)

Fig.21

y

1

1-24 (No.MB666<Rev.005>)

2

z

Tray switch board

N

Fig.22

3.2.12 Removing the side (R) assembly

(See Fig.23 to 27)

• Remove the tray assemblies and DVD ser vo boa rd.

(1) From the inside of the side (R) assembly, release the two

tabs aa of the gear cover and remove the gear cover out­ward. (See Figs.23 and 24.)

(2) From the right side of the DVD changer mechanism as-

sembly, remove the elevator spring attached to the hook
ab of the loader assembly. (See Figs.24 and 25.)

(3) From the top side of the DVD changer mechan is m as s em-

bly, turn the gear 1 clockwise to move the elevator cam
rearward. (See Fig.25.)

(4) Move the two slots ac and joint ad of the elevator cam and

remove the elevator cam outward. (See Fig.25.)

(5) Remove the three screws P and detaches the side (R) as-

sembly upward. (See Figs.26 and 27.)

Note:

When reattaching the side (R) assembly, make sure to fit the
shaft (part ae) into the slot of the select lever. (See Fig.26.)

Side(R) assembly

aa

P

Elevator spring

ac

Fig.25

P

ae

ab

Elevator cam

acad

Select lever

Side(R) assembly

Gear cover

Loader assembly

P

Fig.23

Elevator spring

Gear 1

Side(R) assembly

Fig.26

P

ab

P

Fig.24

Side(R) assembly

Fig.27

(No.MB666<Rev.005>)1-25

3.2.13 Removing the lifter assembly
(See Figs.28 to 32)

• Remove the tray assemblies, DVD servo board, side (L) and

side (R) assembly.
(1) From the top side of the DVD changer mec ha nis m a ssem -

bly, turn the gear 1 clockwise to move the lifter assembly
upward. (See Figs.28 and 29.)

(2) Turn the gear 2 clockwise to move the hook toward the

front until it stops. (See Figs.28 and 29.)

(3) Move the hook stopper in the direction of the arrow 2 while

pushing the tab af of the hook stopp er to unlo ck it i n the di ­rection of the arrow 1 and release four joints ag to detach

from the rack holder. (See Fig.30.)
(4) Release the rod (L) from part ah. (See Fig.30.)
(5) Turn the gear 1 clockwise again to move the lifter assembly

upward. (See Fig.31.)
(6) Remove the lifter assembly from the DVD chan ger mecha -

nism assembly upward at the positions ai where the four

pins on the bot h sides of the lifte r ass embly f it to the no tch -

es of the loader assembly. (See Fig.31.)
(7) Move the lifter assembly in the direction of the arrow and

release it from the hook. (See Fig.32.)

Hook stopper

Gear 2

Gear 1

ag

Rack holder

af

Hook

ag

1

ag

Hook stopper

Fig.30

Lifter assembly

ag

2

Rod(L)

ai

ah

ai

Hook

Gear 2

Lifter assembly

Fig.28

Gear 1

Lifter assembly

Gear 1

ai

Loader assembly

Fig.31

Lifter assembly

ai

Hook stopper

1-26 (No.MB666<Rev.005>)

Hook

Fig.32

Hook

Fig.29

3.2.14 Removing the sensor board and SV resistor
(See Fig.33)

• Remove the tray assemblies, side (L), side (R) assembly and

lifter assembly.
(1) Remove the solders from the soldered sections aj on the

sensor board and remove the wires.

(2) Remove the two screws Q and take out the sensor board

with the SV resistor.

Reference:

• Remove the soldered s ect ion ap on the sensor boa rd as re­quired.

• When reassembling, pass the wires through the slot ak of
the sensor board as before.

Note:

When reattaching the SV. resi ste r, fit th e proj ec tio n am on the
bottom of the SV. resister into slot an of the sensor slider.

Sensor board

Q

ap

Q

ak

aj

SV resistor

am

3.2.15 Taking out the disc in the play mode
(See Fig.34 to 37)

Reference:

Refer to "Removing the tray assemblies".
(1) From the top side of the DVD changer mechan is m as s em-

bly, remove the top cover.

(2) Unlock the tr ay assembl ies and draw out th e tray assem -

blies toward the front.

(3) From the top side of the DVD changer mechan is m as s em-

bly, turn the gear 1 clockwise to move the lifter assembly
upward. (See Fig.34.)

(4) Turn the gear 2 clockwise to move the sub tray remaining

inside the lifter assembly toward the front, then pull out.

(See Fig.34.)
(5) Take out the disc on the sub tray. (See Fig.35.)
(6) After clearing away the disc, insert the sub tray into the

main tray. (See Fig.36.)

Note:

When reattaching th e sub tray, move the tray stop per on
the bottom of the main tray in the direction of the arrow
to lock the sub tray certainly. (See Figs.36 and 37.)

(7) Push the tray assembly toward the DVD changer mecha-

nism assembly and reattach.

an

Gear 2

SV resistor

Slider

Fig.33

Tray assembly

Gear 1

Sub tray

Fig.34

(No.MB666<Rev.005>)1-27

Tray assembly

r

Tray stopper

Disc

Sub tray

Fig.35

Main tray

1-28 (No.MB666<Rev.005>)

Sub tray

Fig.36

Tray stoppe

Fig.37