JVC DXJ-10-EE, DXJ-20, DXJ-35 Service manual
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MB62020077SERVICE MANUAL
DX-J35EE, DX-J35UX,DX-J35UG, DX-J35UN,
DX-J20EE, DX-J20UW,DX-J10EE
SP-DXJ35C
SP-DXJ35F SP-DXJ35F
SUPER VIDEO
CA-DXJ10 SP-DXJ10 SP-DXJ20W SP-DXJ20F SP-DXJ20FSP-DXJ10 CA-DXJ20
SUPER VIDEO
COPYRIGHT © 2007 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)
CA-DXJ35
SP-DXJ35SSP-DXJ35S
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40
COPYRIGHT © 2007 Victor Company of Japan, Limited
No.MB620
2007/7
SPECIFICATION
DX-J35EE
Amplifier section Output Power FRONT SPEAKERS 100 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)
Speaker Terminals 6 Ω - 16 Ω (front speakers/subwoofers)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 522 kHz - 1 629 kHz
Disc/File player section
USB storage section
Cassette deck section
General Power requirement AC 230 V , 50 Hz
Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
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 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
Design and specifications are subject to change without notice.
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) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) 1 V(p-p)/75 Ω
COMPONENT
(Interlace/Progressive)
C(chrominance,
burst): NTSC
C(chrominance,
burst): PAL
(Y) 1 V(p-p)/75 Ω
(PB/PR) 0.7 V(p-p)/75 Ω
0.286 V(p-p)/75 Ω
0.3 V(p-p)/75 Ω
CD-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)
+R/+RW
(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)
1-2 (No.MB620)
DX-J35UX,UG,UN
Amplifier section Output Power FRONT SPEAKERS 100 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)
Speaker Terminals 6 Ω - 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)
Disc/File player section
USB storage section
Cassette deck section
General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V
Region codes Middle East 2
Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
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 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
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) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) 1 V(p-p)/75 Ω
C(chrominance,
burst): NTSC
C(chrominance,
burst): PAL
COMPONENT
(Interlace/Progressive)
South East Asia 3
Central and south America, Australia 4
(Y) 1 V(p-p)/75 Ω
(PB/PR) 0.7 V(p-p)/75 Ω
0.286 V(p-p)/75 Ω
0.3 V(p-p)/75 Ω
530 kHz - 1 710 kHz (at 10 kHz)
(For Saudi Arabia) 531 kHz - 1 602 kHz (at 9 kHz)
(For Saudi Arabia) 530 kHz - 1 600 kHz (at 10 kHz)
CD-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)
+R/+RW
(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)
(adjustable with the voltage selector) 50 Hz / 60 Hz
(For Australian model) AC 240 V , 50 Hz
Design and specifications are subject to change without notice.
(No.MB620)1-3
DX-J20EE/DX-J10EE
Amplifier section Output Power FRONT SPEAKERS 100 W per channel min. RMS driven into 6 Ω at 1 kHz with no
SUBWOOFERS 100 W min. RMS driven into 6 Ω at 63 Hz with no more than 10%
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)
Speaker Terminals 6 Ω - 16 Ω (front speakers/subwoofers)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 522 kHz - 1 629 kHz
Disc/File player section
USB storage section
Cassette deck section
General Power requirement AC 230 V , 50 Hz
Playable disc DVD Video/CD/VCD/SVCD
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 consumption CA-DXJ10 95 W (at operation) / 15 W (on standby)
Dimensions (W/H/D) (approx.) 185 mm x 370 mm x 372 mm
Mass (approx.) CA-DXJ10 8.9 kg
AUX 400 mV/47 k Ω
MIC1/2 3.0 mV/50 k Ω
VIDEO OUT Color system NTSC/PAL
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) 1 V(p-p)/75 Ω
C(chrominance,
burst): NTSC
C(chrominance,
burst): PAL
CA-DXJ20 140 W (at operation) / 16 W (on standby)
CA-DXJ20 9.3 kg
more than 10% total harmonic distortion.
total harmonic distortion.
0.286 V(p-p)/75 Ω
0.3 V(p-p)/75 Ω
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)
+R/+RW
(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)
Design and specifications are subject to change without notice.
1-4 (No.MB620)
DX-J20UW
Amplifier section Output Power FRONT SPEAKERS 100 W per channel min. RMS driven into 6 Ω at 1 kHz with no
more than 10% total harmonic distortion.
SUBWOOFERS 100 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)
Speaker Terminals 6 Ω - 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)
Disc/File player section
USB storage section USB specification Compatible with USB 2.0 Full Speed
Cassette deck section
General Power requirement AC 110 V / AC 127 V / AC 220 V /AC 230 V - AC 240 V
Region codes Middle East 2
Playable disc DVD Video/CD/VCD/SVCD
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
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 consumption 140 W (at operation) / 16 W (on standby)
Dimensions (W/H/D) (approx.) 185 mm x 370 mm x 372 mm
Mass (approx.) 9.3 kg
AUX 400 mV/47 k Ω
MIC1/2 3.0 mV/50 k Ω
VIDEO OUT Color system NTSC/PAL
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) 1 V(p-p)/75 Ω
C(chrominance,
burst): NTSC
C(chrominance,
burst): PAL
South East Asia 3
Central and South America, Australia
0.286 V(p-p)/75 Ω
0.3 V(p-p)/75 Ω
530 kHz - 1 710 kHz (at 10 kHz)
(For Saudi Arabia) 531 kHz - 1 602 kHz (at 9 kHz)
(For Saudi Arabia) 530 kHz - 1 600 kHz (at 10 kHz)
4
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)
+R/+RW
(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)
(adjustable with the voltage selector) 50 Hz / 60 Hz
(For Australia) AC 240 V , 50 Hz
Design and specifications are subject to change without notice.
(No.MB620)1-5
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purposes. 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 responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Service 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 characteristics 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 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, control shafts, etc.) to be sure the product
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, particularly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage 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 manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor 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.).
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 essential that safety critical components are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.
1.3 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.
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)
each exposed
metal part.
1-6 (No.MB620)
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.
(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 condition of the laser diode in the optical pickup. The tester's internal power source 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.
DVD changer mechanism assembly
DVD servo board
Switch board
DVD traverse mechanism assembly
(No.MB620)1-7
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
1-8 (No.MB620)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB620)1-9
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the METAL COVER (See Fig.1, 2)
(1) Remove the two screws A attaching the REAR COVER.
(See Fig.1)
(2) Remove the seven screws B attaching the METAL COV-
ER. (See Fig.1)
(3) Remove the four screws C attaching the both side of MET-
AL COVER. (See Fig.2)
A
B
B
C
Fig.1
1-10 (No.MB620)
Fig.2
3.1.2 Removing the DVD MECHANISM assembly (See Fig.3 to 5)
(1) Disconnect the card wires from MICON BOARD assembly
connected to connector CN701
BOARD assembly. (See Fig.3)
(2) Disconnect the card wire from AMP BOARD assembly con-
nected to connector CN702
(See Fig.3)
(3) Disconnect the card wire from SURROUND BOARD as-
sembly connected to connector CN703
assembly. (See Fig.3)
(4) Remove the two screws D attaching the DVD MECHA-
NISM assembly. (See Fig.4)
(5) Disconnect the connector wire from USB BOARD assem-
bly connected to connector CN811
sembly. (See Fig.5)
CN701 CN703
and CN801 of the DVD
of the DVD BOARD assembly.
of the DVD BOARD
of the DVD BOARD as-
D
CN702 CN801
Fig.3
Fig.4
CN811
Fig.5
(No.MB620)1-11
3.1.3 Removing the VIDEO BOARD assembly (See Fig.6, 7)
(1) Disconnect the card wire from MICON BOARD assembly
connected to connector CN931
sembly. (See Fig.6)
(2) Remove the three screws E attaching the VIDEO BOARD
assembly. (See Fig.7)
of the VIDEO BOARD as-
CN931
Fig.6
Fig.7
E
1-12 (No.MB620)
3.1.4 Removing the MECHA CHASSIS (See Fig.8, 9)
(1) Remove the two screws F attaching the MECHA CHAS-
SIS. (See Fig.8)
(2) Remove the two screws G attaching the both side of
MECHA CHASSIS. (See Fig.9)
F
Fig.8
G
Fig.9
(No.MB620)1-13
3.1.5 Removing the FAN (See Fig 10, 11)
(1) Disconnect the connector wire from FAN connected to con-
nector CN630
Fig.10)
(2) Remove the one screw H attaching the FAN. (See Fig.11)
of the MICON BOARD assembly. (See
CN630
Fig.10
1-14 (No.MB620)
H
Fig.11
3.1.6 Removing the TUNER PACK (See Fig.12, 13)
(1) Disconnect the card wire from TUNER PACK connected to
connector CN507
Fig.12)
(2) Remove the two screws J attaching the TUNER PACK.
(See Fig.13)
of the MICON BOARD assembly. (See
CN507
Fig.12
J
Fig.13
(No.MB620)1-15
3.1.7 Removing the REAR PANEL (See Fig.14)
(1) Remove the four screws K attaching the HEAT SINK.
(2) Remove the nine screws L attaching the REAR PANEL.
K
1-16 (No.MB620)
L
Fig.14
3.1.8 Removing the AMP and SURROUND BOARD assembly (See Fig.15, 16)
(1) Disconnect the card wires from MICON BOARD assembly
connected to connector CN705
BOARD assembly. (See Fig.15)
(2) Disconnect the card wire from HEADPHONE BOARD as-
sembly connected to connector CN760
BOARD assembly. (See Fig.15)
(3) Disconnect the card wire from MIC BOARD assembly con-
nected to connector CN750
(See Fig.16)
(4) Disconnect the card wire from MICON BOARD connected
to connector CN700
BOARD assembly. (See Fig.16)
(5) Disconnect the EARTH WIRE from BOTTOM CHASSIS
connected post pin PP702
(See Fig.16)
(6) Remove the one screw M attaching the AMP BOARD as-
sembly. (See Fig.15)
, CN701 and CN702 of the AMP
and CN706 of the AMP
of the MICON
of the AMP BOARD assembly.
of the AMP BOARD assembly.
CN706CN760
CN705
M
PP702
Fig.15
CN750CN702CN701CN700
Fig.16
(No.MB620)1-17
3.1.9 Removing the MICON BOARD assembly (See Fig.17)
(1) Disconnect the power cord from connector CN410
MICON BOARD assembly.
(2) Disconnect the card wire from FL BOARD assembly con-
nected to connector CN500
bly.
(3) Disconnect the card wire from CASSETTE MECHANISM
BOARD assembly connected to connector CN501
MICON BOARD assembly.
(4) Disconnect the card wire from PLAY BOARD assembly
connected to connector CN430
sembly.
(5) Remove the POWER TRANSFORMER.
3.1.10 Removing the FRONT PANEL assembly (See Fig.18, 19)
(1) Remove the one screw N attaching the EARTH WIRE from
USB BOARD assembly. (See Fig.18)
(2) Remove the one screw P attaching the EARTH WIRE from
MIC BOARD assembly. (See Fig.19)
(3) Disengage two hooks b engaged both side of FRONT
PANEL assembly. (See Fig.19)
of the MICON BOARD assem-
of the MICON BOARD as-
of the
of the
CN500 CN501
CN410CN430
Fig.17
1-18 (No.MB620)
N
Fig.18
P hook b
Fig.19
3.1.11 Removing the SURROUND BOARD assembly (See Fig.20 to 22)
(1) Disconnect the card wire from SURROUND BOARD as-
sembly connected to connector CN711
AMP BOARD assembly. (See Fig.20)
(2) Disconnect the card wire from AMP BOARD assembly con-
nected to connector CN310
assembly. (See Fig.21)
(3) Remove the one screw Q attaching the EARTH BRACKET.
(See Fig.22)
(4) Remove the two screws R attaching the POWER IC. (See
Fig.22)
of the SURROUND BOARD
and CN712 of the
CN712
CN310
CN711
Fig.20
Fig.21
QR
Fig.22
(No.MB620)1-19
3.1.12 Removing the B CASSETTE MECHANISM assembly (See Fig.23, 24)
(1) Disconnect the connector wire from B CASSETTE MECH-
ANISM assembly connected to connector CN200
CASSETTE MECHANISM BOARD assembly. (See
Fig.23)
(2) Disconnect the card wire from B CASSETTE MECHANISM
connected to connector CN120
MECHANISM BOARD assembly. (See Fig.23)
(3) Remove the two screws S attaching the bracket board.
(See Fig.23)
(4) Remove the four screws T attaching the B CASSETTE
MECHANISM assembly. (See Fig.24)
of the A CASSETTE
of the A
CN200CN120
S
Fig.23
T
Fig.24
1-20 (No.MB620)
3.1.13 Removing the A CASSETTE MECHANISM assembly (See Fig.25)
(1) Remove the four screws U attaching the A CASSETTE
MECHANISM assembly.
3.1.14 Removing the MIC BOARD assembly (See Fig.26)
(1) Remove the volume knob.
(2) Remove the two screws V attaching the MIC BOARD as-
sembly.
U
Fig.25
Fig.26
V
(No.MB620)1-21
3.1.15 Removing the USB BOARD assembly (See Fig.27)
(1) Remove the two screws W attaching the USB BOARD as-
sembly.
3.1.16 Removing the FRONT BOARD assembly (See Fig.28)
(1) Remove the five screws X attaching the FUNCTION
BOARD assembly.
(2) Remove the five screws Y attaching the EJECT BOARD
assembly.
(3) Remove the five screws Z attaching the PLAY BOARD as-
sembly.
(4) Remove the seven screws AA attaching the FL BOARD
assembly.
W
Fig.27
AA
1-22 (No.MB620)
XYZ
Fig.28
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 assemblies toward the front while
pushing the 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.MB620)1-23
Fig.3
r
Open det. leve
Tray assemblies
c
b
Side(R) assembly
Fig.4
Tray assembly
1-24 (No.MB620)
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 this instruction, the DVD pickup may be damaged.
(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 connectors (CN452
on the DVD servo board. (See Fig.7.)
(4) Remove the two screws B attaching the DVD 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 solders from the short land sections d after 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 attaching the switch board on
the DVD changer mechanism assembly.
(2) Disconnect the wires from the connectors (CN452
on the DVD servo board.
(3) Release the wires from the section f and remove the switch
board.
(4) Release the wires from the sections g and remove the
switch board.
Reference:
When reassembling, pass the wires through the sections (f, g)
as before.
, CN451) on the DVD servo board. (See Fig.7.)
When connecting the card wire to the connector 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
Fig.8
Lock
(No.MB620)1-25
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 D attaching 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
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, and 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 motor board, unsolder the four
soldered sections i on the motor board.
(2) From the forward side of the motor board, remove the mo-
tors.
on the motor board from the
on the
D
Belt
Motor Motor
Motor pulleys
Belt
D
Loader assembly
Fig.9
Motors
Motor board
i
Tray switch
board
E
CN2
CN1
h
DVD changer mechanism assembly
Fig.10
Motors
Motor board
E
1-26 (No.MB620)
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 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.MB620)1-27
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 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 q of 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 wire to the connector on the DVD pickup.
(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
1-28 (No.MB620)
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.MB620)1-29
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 mechanism assem-
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
1-30 (No.MB620)
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