JVC DX-J36UN User manual

SERVICE MANUAL
COPYRIGHT © 2009 Victor Company of Japan, Limited No.MB666<Rev.005>
2009/2
COMPACT COMPONENT SYSTEM
MB666<Rev.005>20092SERVICE MANUAL
DX-J36UN, DX-J36EE, DX-J36UX, DX-J36UG, DX-J36US,
DX-J36UW, DX-J21UN, DX-J21J, DX-J21EE, DX-J21A,
DX-J21UW, DX-J21UX,DX-J21UG, DX-J11UN, DX-J11EE,
DX-J11UW, DX-J11UX, DX-J11UG, DX-J11UH, DX-J11US
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)
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
SUPER VIDEO
DX-J11
SP-DXJ11 CA-DXJ11 SP-DXJ11
DX-J21
SP-DXJ21W SP-DXJ21F CA-DXJ21 SP-DXJ21F
DX-J36
SP-DXJ36F SP-DXJ36F
SP-DXJ36C
CA-DXJ36
SP-DXJ36S SP-DXJ36S

1-2 (No.MB666<Rev.005>)
SPECIFICATION
DX-J21/DX-J11
Design and specifications are subject to change without notice.
Amplifier section
Output Power FRONT SPEAKERS
(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.
SUBWOOFERS (DX-J21)120 W min. RMS driven into 6 Ω at 63 Hz with no more than 10% total harmonic distortion.
Digital output OPTICAL DIGITAL OUTPUT -21 dBm to -15 dBm (660 nm ±30 nm)
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
C (chrominance, burst) 1 V(p-p)/75 Ω
NTSC 0.286 V(p-p)/75Ω
PAL 0.3 V(p-p)/75Ω
Speaker Terminals 6Ω- 16 Ω(front speakers/subwoofers)
Tuner section
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 629Khz Disc/File player section
Region codes Middle East 2
South East Asia 3
Central and South America, Australia 4
Playable disc DVD Video/CD/VCD/SVCD/CD-R/CD-RW (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)
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 storage section
USB specification Compatible with USB 2.0 Full Speed
Compatible device Mass storage class
Compatiblefilesystem FAT 16, FAT 32
Bus power supply 5 V/500 mA Cassette deck section
Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS) General
Power requirement
AC 110 V / AC 127 V / AC 220 V / AC 230 V 〜 AC 240 V 〜 (adjustable with the voltage selector) 50 Hz / 60 Hz
For Australia AC 240 V 〜 , 50 Hz
For Russia AC 230 V
〜 , 50 Hz
Power consumption DX-J11UN 95 W (at operation) / 15 W (on standby)
DX-J21UN 140 W (at operation) / 16 W (on standby
Dimensions(W/H/D) (approx.) 185 mm x 370 mm x 372 mm
Mass (approx.) DX-J11UN 8.9 kg
DX-J21UN 9.3 kg

(No.MB666<Rev.005>)1-3
DX-J36
Design and specifications are subject to change without notice.
Amplifier section
Output Power FRONT SPEAKERS
125 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
SURROUND SPEAKERS 50 W per channel min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
CENTER SPEAKER 50 W min. RMS driven into 6 Ω at 1 kHz with no more than 10% total harmonic distortion.
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
Ω
MIC1/2 3.0 mV/50 k Ω
VIDEO OUT Color system NTSC/NTSC PROG/PAL/PAL PROG
VIDEO (composite) S-VIDEO Y (luminance) 1 V(p-p)/75
Ω
C (chrominance, burst) 1 V(p-p)/75 Ω
NTSC 0.286 V(p-p)/75 Ω
PAL 0.3 V(p-p)/75 Ω
COMPONENT
(Interlace/Progressive) (Y) 1 V(p-p)/75
Ω
(PB/PR) 0.7 V(p-p)/75 Ω
Speaker Terminals 6 Ω - 16 Ω (front/surround/center) Tuner section
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 Disc/File player section
Region codes Middle East 2
South East Asia 3
Central and south America, Australia 4
Playable disc 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)
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 storage section
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 Cassette deck section
Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS) General
Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230V - AC 240 V
〜 (adjustable with the voltage selector) 50 Hz / 60 Hz
For Australian model AC 240 V
〜 , 50 Hz
For Russia AC 230 V
〜 , 50 Hz
Power consumption 205 W (at operation) / 21 W (on standby)
Dimensions (W/H/D) (approx.) 185 mm x 370 mm x 372 mm
Mass (approx.) 9.5 kg

1-4 (No.MB666<Rev.005>)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety 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 per-
formed 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 responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteris-
tics are often not evident fromvisual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice Manual. Electrical components having such features
are identified by shading on the schematics and by ( ) on
the Parts List in the Service Manual. The use of a substitute
replacement which does not have the same safety charac-
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, barriers and the like to be separated 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 reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna terminals, knobs, metal cabinet, screw heads,
headphone jack, control shafts, etc.) to be sure theproduct
is safe to operate without danger of electrical shock.Do not
use a line isolation transformer during this check.
• Plug the AC line cord directly into the AC outlet. Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal parts of the cabinet, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent 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, 1,000Ωper volt or more sensitivity
in the following manner. Connect a 1,500Ω10W resistor
paralleled by a 0.15µF AC-typecapacitor between an ex-
posed 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.).
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 essential that safety critical components are replaced
by approved parts.
(5) If mains voltageselector is provided, check settingfor local
voltage.
1.3 Caution
Burrs formedduring moldingmay be left over on some parts
of the chassis.
Therefore, pay attention to such burrs in the case of pre-
forming 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 diagrams, 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)
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE

(No.MB666<Rev.005>)1-5
1.5 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy 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.
(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 checkthe conditionof the laser diode in the optical pickup. Thetester's internalpowersource can easily
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 nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long 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.
1M
Conductive material
(conductive sheet) or iron palate
(caption)
Anti-static wrist strap
Solder short land section

1-6 (No.MB666<Rev.005>)
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.
REPRODUCTION AND POSITION OF LABELS and PRINT
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL and PRINT

(No.MB666<Rev.005>)1-7
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 Aattaching the both side of the
Metal Cover. (See Fig.1)
(2) Remove the two screws Battaching the Rear cover. (See
Fig.2)
(3) Remove the seven screws Cattaching the Metal cover.
(See Fig.2)
Fig.1
Fig.2
A
C
C
C
C
B
C
C
C

1-8 (No.MB666<Rev.005>)
3.1.2 Removing the DVD mechanism (See Fig.3 to 5)
(1) Disconnect the card wire from Micom board connected to
connector CN701 and CN801 of the Front end board. (See
Fig.3)
(2) Disconnect the card wire from Amp board connected to
connector CN702 of the Front end board. (See Fig.3)
(3) Remove the two screws Dattaching the DVD mechanism.
(See Fig.4)
(4) Disconnect the connector wire from USB jack board con-
nected to connector CN811 of the Front end board. (See
Fig.5)
Fig.3
Fig.4
Fig.5
CN701
CN702
CN801
DD
CN811

(No.MB666<Rev.005>)1-9
3.1.3 Removing the Video board (See Fig.6, 7)
(1) Disconnect the card wire from Micom board connected to
connector CN931 of the Video board. (See Fig.6)
(2) Remove the two screws Eattaching the Video board. (See
Fig.7)
Fig.6
Fig.7
3.1.4 Removing the Mecha chassis (See Fig.8, 9)
(1) Remove the two screws Fattaching the Mecha chassis.
(See Fig.8)
(2) Remove the two screws Gattaching the both side of the
Mecha chassis. (See Fig.9)
Fig.8
Fig.9
CN931
E
F
G

1-10 (No.MB666<Rev.005>)
3.1.5 Removing the Fan (See Fig.10, 11)
(1) Disconnect the4 connector wire from Fan connected to
connector CN630 of the Micom board. (See Fig.10)
(2) Remove the one screw Hattaching 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 of the Micom board. (See Fig.10)
(2) Remove the two screws Jattaching the Tuner pack. (See
Fig.11)
Fig.10
Fig.11
3.1.7 Removing the Rear panel (See Fig.12)
(1) Remove the three screws Kattaching the Heat sink.
(2) Remove the six screws Lattaching the Rear panel.
Fig.12
CN507
CN630
H
J
L
K

(No.MB666<Rev.005>)1-11
3.1.8 Removing the Amp board (See Fig.13)
(1) Disconnect the Earth wire from Bottom chassis connected
to post pin PP701 of the Amp board.
(2) Disconnect the flat cable wirefrom Micom board connected
to connector CN700, CN701and CN702 of the Amp board.
(3) Disconnect the card wire from Mic board connected to con-
nector CN750 of the Amp board.
(4) Disconnect the card wires from Micom board connected to
connectors CN705 and CN706 of the Amp board.
(5) Disconnect the flat cable wire from Headphone jack board
connected to connector CN760 of the Amp board.
(6) Remove the one screw M attaching the Amp board.
Fig.13
3.1.9 Removing the Micom board (See Fig.14, 15)
(1) Disconnect the card wire from FL board connected to con-
nector CN500 of the Micom board. (See Fig.14)
(2) Disconnect the card wire from Cassette mechanism 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 of the Micom board. (See
Fig.14)
(4) Remove the four screws Nattaching the Power transform-
er. (See Fig.15)
Fig.14
Fig.15
M
PP701
CN700
CN701
CN702
CN750
CN760
CN706
CN705
CN501
CN500
CN430
N
N

1-12 (No.MB666<Rev.005>)
3.1.10 Removing the Front panel (See Fig.16 to 18)
(1) Remove the one screw Pattaching the Earth wire. (See
Fig.16)
(2) Remove the one screw Qattaching the Earth wire. (See
Fig.17)
(3) Remove the two screws Rattaching the Front panel. (See
Fig.18)
(4) Disengage two hooks aengaged both side of the Front
panel. (See Fig.17)
Fig.16
Fig.17
Fig.18
P
Q
hook a
R

(No.MB666<Rev.005>)1-13
3.1.11 Removing the Cassette mechanism (See Fig.19 to 21)
(1) Disconnect the connector wire from Cassette mechanism
B connected to connector CN200 of the Cassette board A.
(See Fig.19)
(2) Disconnect the card wire from Cassette mechanism Bcon-
nected to connector CN120 of the Cassette board A. (See
Fig.19)
(3) Remove the two screws Sattaching the Cassette mecha-
nism A. (See Fig.19)
(4) Remove the two screws Tattaching the Earth wires. (See
Fig.19)
(5) Remove the two screws Uattaching the Bracket board.
(See Fig.20)
(6) Remove the three screws Vattaching the Cassette mech-
anism B. (See Fig.21)
Fig.19
Fig.20
Fig.21
CN200
CN120
ST
U
V
V

1-14 (No.MB666<Rev.005>)
3.1.12 Removing the Mic board (See Fig.22)
(1) Remove the volume knob.
(2) Remove the two screws Wattaching the Mic board.
Fig.22
3.1.13 Removing the USB jack board and Headphone jack board (See Fig.23)
(1) Remove the two screws Xattaching the bracket board.
Fig.23
3.1.14 Removing the FL board (See Fig.24)
(1) Remove the Volume knob.
(2) Remove the five screws Yattaching the Function board.
(3) Remove the four screws Zattaching 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.
Fig.24
W
X
Y
ZAA
BB

(No.MB666<Rev.005>)1-15
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
Afrom the top cover and release the two joints aon 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 assemblies toward the front while
pushing the part bof the side (R) assembly. (See Figs.4
and 5.)
Note:
The tray can be locked if all tray assemblies are at-
tached.
(5) From the topside of the DVD changer mechanism assem-
bly, move the stopper tabs cin 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". Fig.1
Fig.2
Top cover
Lifter assembly
Rods
A
a
a
A
a
Rods Top cover
Lifter assembly
a

1-16 (No.MB666<Rev.005>)
Fig.3
Fig.4
Fig.5
Open det. leve
r
b
Tray assemblies Side(R) assembly
c
Tray assembly

(No.MB666<Rev.005>)1-17
3.2.2 Removing the DVD servo board
(See Figs.6 to 8)
Caution:
Solder the short land sections don the DVD pickup before dis-
connecting the card wire extending from the DVD pickup. If
you do notfollow thisinstruction,the DVD pickup may be dam-
aged.
(1) From the topside of the DVD changer mechanism assem-
bly, solder the short land sections don 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, CN451) on the DVD servo board. (See Fig.7.)
Reference:
When connecting the card wire to the connector CN451,
pass it through the sections eon the DVD traverse
mechanism assembly. (See Fig.7.)
(3) Disconnect the wires fromthe connectors (CN452, CN453)
on the DVD servo board. (See Fig.7.)
(4) Remove the two screws Battaching the DVD servo board.
(See Fig.7.)
(5) From the reverse side of the DVD servo board, release the
lock of the connector CN101 in the direction of the arrow
and disconnect the card wire. (See Fig.8.)
Caution:
Unsolder the solders from the short land sections dafter reas-
sembling. (See Fig.6.)
3.2.3 Removing the switch board
(See Fig.7)
(1) From the bottom side of the DVD changer mechanism as-
sembly, remove the screw Cattaching the switch board on
the DVD changer mechanism assembly.
(2) Disconnect the wires fromthe connectors (CN452, CN453)
on the DVD servo board.
(3) Release the wires from the section fand remove the switch
board.
(4) Release the wires from the sections gand remove the
switch board.
Reference:
When reassembling,pass the wires through the sections (f, g)
as before.
Fig.6
Fig.7
Fig.8
DVD pickup
DVD changer mechanism assembly
d
C
DVD changer mechanism assembly
B
B
CN201
eCN453
CN451
Switch board
DVD traverse mechanism assembly
DVD servo board
f
g
CN452
DVD servo board CN101
Lock

1-18 (No.MB666<Rev.005>)
3.2.4 Removing the motor board
(See Figs.9 and 10)
(1) From the top side of the DVD changer mechanism assem-
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 Dattaching the motors to the 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 connector CN2 on the motor board from the
tray switch board and remove the motor board. (See
Fig.10.)
(5) Disconnect the card wire from the connector CN1 on the
forward side of the motor board. (See Fig.10.)
Note:
When connecting the card wire, let the card wire through the
slots hof the motor board. (See Fig.10.)
Reference:
You need notto remove the tray assemblies, and in such case,
move it.
3.2.5 Removing the motor
(See Fig. 10)
• Remove the motor board.
(1) From the reverseside of the motor board, unsolder the four
soldered sections ion the motor board.
(2) From the forward side of the motor board, remove the mo-
tors.
Fig.9
Fig.10
Motor Motor
Motor pulleys Loader assembly
Belt
Belt
D
D
E
h
CN2
Motors
i
CN1
E
Motor board
DVD changer mechanism assembly
Tray switch
board
Motors
Motor board

(No.MB666<Rev.005>)1-19
3.2.6 Removing the DVD traverse mechanism assembly
(See Fig.11)
• Remove the tray assemblies and DVD servo board.
(1) From the bottom side of the DVD changer mechanism as-
sembly, remove the three screws Fattaching 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.
Fig.11
F
F
j
F
DVD changer mechanism assembly
DVD traverse mechanism assembly

1-20 (No.MB666<Rev.005>)
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 Gattaching the feed bracket and re-
move the feed bracket from the sections k. (See Fig.12.)
(4) Release the claw mof 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 qof the DVD pickup. (See Fig.13.)
(7) Remove the two screws Hattaching the rack arm spring
and rack arm. (See Fig.14.)
(8) Pull the guide shaft from the DVD pickup in the direction 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 qof the DVD pickup to the C.TM chassis
first and attach the guide shaft to the sections (n, p). (See
Fig.13.)
Reference:
When attaching the guide shaft to the section p, attach it
under the rod spring. (See Fig.13.)
(3) Attach the thrust spring and feed bracket with the screw 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 wireto the connector on the DVD pickup.
(See Fig.15.)
Fig.12
Fig.13
2
1
Thrust spring
Thrust spring
DVD pickup
Connector
Screw shaft gear
G
DVD traverse mechanism assembly
k
m
Feed bracket
DVD pickup
Guide shaft
C.TM chassis
n
p
Rod spring
q