JVC DX-U10A User manual

SERVICE MANUAL
COPYRIGHT © 2008 Victor Company of Japan, Limited No.MB616<Rev.002>
2008/4
COMPACT COMPONENT SYSTEM
MB616<Rev.002>20084SERVICE MANUAL
DX-U10A, DX-U10US, DX-U10UX, DX-U10UG,
DX-U10UN, DX-U8US, DX-U8UX, DX-U8UG,
DX-U8UN, DX-U6US, DX-U6UX, DX-U6UG,
DX-U6UN, DX-U10UH
COPYRIGHT © 2008 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35
SUPER VIDEO
SUPER VIDEO
CA-DXU6
SP-DXU6F SP-DXU6F
SP-DXU10W
CA-DXU8
SP-DXU10F
SP-DXU10F
SP-DXU10W
SP-DXU8S
SP-DXU8S
SP-DXU10C
CA-DXU10
SP-DXU10F SP-DXU10F
SP-DXU10W SP-DXU10W
SP-DXU10S SP-DXU10S
SP-DXU10C

1-2 (No.MB616<Rev.002>)
SPECIFICATION
DX-U10/DX-U8
Measured at 1 kHz, with tape recording signal 400 mV
Design and specifications are subject to change without notice.
Amplifier section Output Power FRONT SPEAKERS 150 W per channel, min. RMS, driven into 4 Ωat 1 kHz with
no more than 10% total harmonic distortion.
CENTER SPEAKER CA-DXU10 140 W per channel, min. RMS, driven into 6 Ωat 1 kHz with
no more than 10% total harmonic distortion.
CA-DXU8 50 W per channel, min. RMS, driven into 6 Ωat 1 kHz with no
more than 10% total harmonic distortion.
SURROUND SPEAKERS CA-DXU10 130 W per channel, min. RMS, driven into 6 Ωat 1 kHz with
no more than 10% total harmonic distortion.
CA-DXU8 50 W per channel, min. RMS, driven into 6 Ωat 1 kHz with no
more than 10% total harmonic distortion.
SUBWOOFERS 150 W, min. RMS, driven into 4 Ωat 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 AUX(STEREO) 400 mV/47 kΩ
MIC1/MIC2 3.0 mV/50 kΩ
VIDEO OUT Color system PAL/PAL PROG/NTSC/NTSC PROG selectable
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) : 1 V(p-p)/75 Ω
C (chrominance, burst) : PAL : 0.3 V(p-p)/75 Ω
C (chrominance, burst) : NTSC : 0.286 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 4 Ω- 16 Ω(front speakers/subwoofers)
6 Ω- 16 Ω(surround/center speakers)
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)
AM (MW) tuning range for Saudi Arabia 531 kHz to 1 602 kHz (9 kHz)
530 kHz to 1 600 kHz (10 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/SVCD
CD-R/CD-RW (CD/VCD/SVCD/MP3/WMA/WAV/JPEG/
MPEG-1/MPEG-2/ASF/DivX format)
CD-ROM (MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/
DivX format)
DVD-R/-RW (DVD-VR/DVD Video/DVD Audio/MP3/WMA/
WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX format)
+R/+RW (DVD Video/DVD Audio/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 for-
mat
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 FAT16, FAT32
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
Power requirement: For Australia AC 240 V , 50 Hz
Power consumption CA-DXU10 300 W (at operation) / 22 W (on standby)
CA-DXU8 270 W (at operation) / 21 W (on standby)
Dimensions (W/H/D) (approx.) 185 mm ×460 mm ×370 mm
Mass (approx.) CA-DXU10 11.5 kg
CA-DXU8 11.4 kg

(No.MB616<Rev.002>)1-3
DX-U6
Measured at 1 kHz, with tape recording signal 400 mV
Design and specifications are subject to change without notice.
Amplifier section Output Power FRONT SPEAKERS 150 W per channel, min. RMS, driven into 4 Ωat 1 kHz with no more
than 10% total harmonic distortion.
SUBWOOFER 150 W, min. RMS, driven into 4 Ωat 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 AUX 400 mV/47 kΩ
MIC1/MIC2 3.0 mV/50 kΩ
VIDEO OUT Color system PAL/PAL PROG/NTSC/NTSC PROG selectable
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) : 1 V(p-p)/75 Ω
C (chrominance, burst) : PAL : 0.3 V(p-p)/75 Ω
C (chrominance, burst) : NTSC : 0.286 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 4 Ω- 16 Ω(main speakers/subwoofer)
16 Ω- 32 Ω(matrix surround speakers)
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)
AM (MW) tuning range: For Saudi Arabia 531 kHz to 1 602 kHz (9 kHz)
530 kHz to 1 600 kHz (10 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/SVCD
CD-R/CD-RW (CD/VCD/SVCD/MP3/WMA/WAV/JPEG/MPEG-1/
MPEG-2/ASF/DivX format)
CD-ROM (MP3/WMA/WAV/JPEG/MPEG-1/MPEG-2/ASF/DivX for-
mat)
DVD-R/-RW (DVD-VR/DVD Video/DVD Audio/MP3/WMA/WAV/
JPEG/MPEG-1/MPEG-2/ASF/DivX format)
+R/+RW (DVD Video/DVD Audio/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 FAT16, FAT32
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
Power requirement: For Australia AC 240 V , 50 Hz
Power consumption 200 W (at operation)
19 W (on standby)
Dimensions (W/H/D) (approx.) 185 mm ×460 mm ×370 mm
Mass (approx.) 10.5 kg

1-4 (No.MB616<Rev.002>)
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 mainsvoltage selector isprovided, 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.MB616<Rev.002>)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 check the conditionof the laser diode in the optical pickup. Thetester's internalpower 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.
1M
Conductive material
(conductive sheet) or iron palate
(caption)
Anti-static wrist strap
DVD changer mechanism assembly
Switch board
DVD traverse mechanism assembly
DVD servo board

1-6 (No.MB616<Rev.002>)
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.MB616<Rev.002>)1-7
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-8 (No.MB616<Rev.002>)
SECTION 3
DISASSEMBLY
3.1 Main body (Using figures are DX-U10)
3.1.1 Removing the METAL COVER
(See Fig.1, 2)
(1) Remove the eight screws Aattaching the METAL COVER.
(See Fig.1)
(2) Remove the six screws Battaching the both side of the
METAL COVER. (See Fig.2)
Fig.1
Fig.2
A
A
B

(No.MB616<Rev.002>)1-9
3.1.2 Removing the DVD CHANGER MECHANISM assembly
(See Fig.3 to 6)
(1) Remove the two screws Cattaching the DVD MECHA-
NISM assembly. (See Fig.3)
(2) Disconnect the card wires from DVD MECHANISM assem-
bly connectedto connector CN800and CN810 of the MAIN
BOARD assembly. (See Fig.4)
(3) Disconnect the connector wire from USB board connected
to connector CN811 of the DVD BOARD assembly. (See
Fig.5)
(4) Disconnect the card wires from DVD BOARD assembly
connected to connector CN921 and CN930 of the VIDEO
board assembly. (See Fig.6)
Fig.3
Fig.4
Fig.5
Fig.6
CC
CN810
CN800
CN811
CN930
CN921

1-10 (No.MB616<Rev.002>)
3.1.3 Removing the VIDEO BOARD assembly
(See Fig.7, 8)
(1) Disconnect the card wire from MAIN BOARD assembly
connected to connector CN920 of the VIDEO BOARD as-
sembly. (See Fig.7)
(2) Disconnect the card wire from SURROUND AMP BOARD
assembly connected to connector CN931 of the VIDEO
BOARD assembly. (See Fig.7)
(3) Remove the three screws Dattaching the VIDEO BOARD
assembly. (See Fig.8)
Fig.7
Fig.8
3.1.4 Removing the MECHA CHASSIS
(See Fig.9, 10)
(1) Remove the two screws Eattaching the MECHA CHAS-
SIS. (See Fig.9)
(2) Remove the two screws Fattaching the both side of
MECHA CHASSIS (See Fig.10)
Fig.9
Fig.10
CN920 CN931
D
E
F

(No.MB616<Rev.002>)1-11
3.1.5 Removing the REAR COVER with FAN
(See Fig.11, 12)
(1) Remove the One screw Gattaching the REAR COVER.
(See Fig.11)
(2) Disengage six hooks aengaged REAR COVER. (See
Fig.11)
(3) Disconnect the connector wire from FAN connected to con-
nector CN304 of the SURROUND AMP BOARD assembly.
(See Fig.12)
Fig.11
Fig.12
G
hook
ahook a
CN304

1-12 (No.MB616<Rev.002>)
3.1.6 Removing the TUNER PACK
(See Fig.13, 14)
(1) Disconnect the card wire from TUNER PACK connected to
connector CN750 of the MAIN BOARD assembly. (See
Fig. 13)
(2) Remove the two screws Hattaching the TUNER PACK.
(See Fig.14)
Fig.13
Fig.14
CN750
H

(No.MB616<Rev.002>)1-13
3.1.7 Removing the REAR PANEL
(See Fig.15, 16)
(1) Remove the four screws Jattaching the HEAT SINK by or-
der. (See Fig.15)
(2) Remove the five screws Kattaching the REAR PANEL.
(See Fig.15)
(3) Disengage two hooks bengaged both side of the REAR
PANEL. (See Fig.16)
Fig.15
Fig.16
order 1 order 2
order 3 order 4
J
J
J
J
K
K
K
hook b

1-14 (No.MB616<Rev.002>)
3.1.8 Removing the MAIN BOARD assembly
(See Fig.17, 18)
(1) Disconnect the card wire from FL BOARD assembly con-
nected to connector CN720 of the MAIN BOARD assem-
bly. (See Fig.17)
(2) Disconnect the card wire from CASSETTE MECHANISM A
connected to connector CN730 of the MAIN BOARD as-
sembly. (See Fig.17)
(3) Disconnect the card wire from SUBWOOFER AMP
BOARD assembly connected to connector CN820 of the
MAIN BOARD assembly. (See Fig.17)
(4) Disconnect the card wire from SURROUND AMP BOARD
assembly connected to connector CN830 of the MAIN
BOARD assembly. (See Fig.17)
(5) Disconnect the card wire from MIC BOARD assembly con-
nected to connector CN740 of the MAIN BOARD assem-
bly. (See Fig.18)
(6) Remove the two screws Lattaching the MAIN BOARD as-
sembly. (See Fig.18)
(7) Disconnect the BOARD TO BOARD connector CN850
connected the MAIN BOARD assembly and REGULATOR
BOARD assembly. (See Fig.18) Fig.17
Fig.18
CN730
CN720
CN820 CN830
CN740
CN850
L

(No.MB616<Rev.002>)1-15
3.1.9 Removing the REGULATOR BOARD assembly
(See Fig.19, 20)
(1) Disconnect the card wire from REGULATOR BOARD as-
sembly connected to connector CN305 and CN306 of the
SURROUND AMP BOARD assembly. (See Fig.19)
(2) Disconnect the card wire from FL BOARD assembly con-
nected to connector CN207 of the REGULATOR BOARD
assembly. (See Fig.19)
(3) Disconnect the connector wire from TRANS BOARD as-
sembly connected to connector CN201 of the REGULA-
TOR BOARD assembly. (See Fig.19)
(4) Disconnect the EARTH WIRE from TRANS BOARD as-
sembly connected to pin PP201 of the REGULATOR
BOARD assembly. (See Fig.19)
(5) Remove the one screw Mattaching the REGULATOR
BOARD assembly. (See Fig.19)
(6) Disconnect the BOARD TO BOARD connectors CN204
and CN205 connected to SURROUND AMP BOARD as-
sembly and SUBWOOFER AMP BOARD assembly. (See
Fig.20)
Fig.19
Fig.20
M
CN201
CN207
PP201
CN306
CN305
CN204 CN205

1-16 (No.MB616<Rev.002>)
3.1.10 Removing the SURROUND AMP BOARD assembly
(See Fig.21)
(1) Remove the two screws Nattaching the POWER AMP IC.
(2) Remove the one screw Pattaching the IC BRACKET.
3.1.11 Removing the SUBWOOFER AMP BOARD assembly
(See Fig.21)
(1) Remove the four screws Qattaching the POWER AMP
ICs.
Fig.21
3.1.12 Removing the FRONT PANEL assembly
(See Fig.22, 23)
(1) Remove the onescrew Rattaching the EARTH WIRE from
MIC BOARD assembly. (See Fig.22)
(2) Remove the two screws Sattaching the FRONT PANEL
assembly. (See Fig.23)
(3) Disengage two hooks cengaged both side of FRONT
PANEL assembly. (See Fig.22)
Fig.22
Fig.23
N
P
Q
R
hook c
SS

(No.MB616<Rev.002>)1-17
3.1.13 Removing the CASSETTE MECHANISM B
(SeeFig.24)
(1) Disconnect the card wire from CASSETTE MECHANISM B
connected to connector CN120 of the CASSETTE MECH-
ANISM BOARD assembly of the CASSETTE MECHA-
NISM A.
(2) Disconnect the connector wire from CASSETTE MECHA-
NISM B connected to connector CN200 of the CASSETTE
MECHANISM BOARD assembly of the CASSETTE
MECHANISM A.
(3) Remove the four screws Tattaching the CASSETTE
MECHANISM B.
Fig.24
3.1.14 Removing the CASSETTE MECHANISM A
(See Fig.25)
(1) Remove the four screws Uattaching the CASSETTE
MECHANISM A.
Fig.25
T
TT
T
CN200
CN210
U
UU
U

1-18 (No.MB616<Rev.002>)
3.1.15 Removing the FL BOARD assembly and SWITCH BOARD assembly
(See Fig.26)
(1) Remove the four screws Vattaching the FL BOARD as-
sembly.
(2) Remove the six screws Wattaching the SWITCH BOARD
assembly.
Fig.26
3.1.16 Removing the MIC BOARD assembly
(See Fig.27)
(1) Remove the two volume knobs.
(2) Remove the three screws Xattaching the MIC BOARD as-
sembly.
Fig.27
V
V
WW
X

(No.MB616<Rev.002>)1-19
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

1-20 (No.MB616<Rev.002>)
Fig.3
Fig.4
Fig.5
Open det. leve
r
b
Tray assemblies Side(R) assembly
c
Tray assembly