JVC DX-U6U, DX-U8U, DX-U10U Schematic
SERVICE MANUAL
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
SP-DXU10W SP-DXU10W
SP-DXU10S SP-DXU10S
COPYRIGHT © 2008 Victor Company of Japan, Limited
SP-DXU10F SP-DXU10F
SP-DXU10W
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-DXU10
SUPER VIDEO
CA-DXU6
SP-DXU6F SP-DXU6F
SP-DXU10C
SP-DXU10W
SP-DXU8S
SUPER VIDEO
CA-DXU8
SP-DXU10F
SP-DXU8S
SP-DXU10F
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
SP-DXU10C
COPYRIGHT © 2008 Victor Company of Japan, Limited
No.MB616<Rev.002>
2008/4
SPECIFICATION
DX-U10/DX-U8
Amplifier section Output Power FRONT SPEAKERS 150 W per channel, min. RMS, driven into 4 Ω at 1 kHz with
CENTER SPEAKER CA-DXU10 140 W per channel, min. RMS, driven into 6 Ω at 1 kHz with
CA-DXU8 50 W per channel, min. RMS, driven into 6 Ω at 1 kHz with no
SURROUND SPEAKERS CA-DXU10 130 W per channel, min. RMS, driven into 6 Ω at 1 kHz with
CA-DXU8 50 W per channel, min. RMS, driven into 6 Ω at 1 kHz with no
SUBWOOFERS 150 W, min. RMS, driven into 4 Ω at 63 Hz with no more than
Digital output OPTICAL DIGITAL OUTPUT -21 dBm to -15 dBm (660 nm ±30 nm)
Digital input USB memory
Audio input sensitivity/
Impedance
VIDEO OUT Color system PAL/PAL PROG/NTSC/NTSC PROG selectable
Speaker Terminals 4 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)
AM (MW) tuning range for Saudi Arabia 531 kHz to 1 602 kHz (9 kHz)
Disc/file player section 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 for-
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 ,
Power requirement: For Australia AC 240 V , 50 Hz
Power consumption CA-DXU10 300 W (at operation) / 22 W (on standby)
Dimensions (W/H/D) (approx.) 185 mm × 460 mm × 370 mm
Mass (approx.) CA-DXU10 11.5 kg
AUX(STEREO) 400 mV/47 kΩ
MIC1/MIC 2 3.0 mV/50 kΩ
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance) : 1 V(p-p)/75 Ω
COMPONENT
(Interlace/Progressive)
CA-DXU8 270 W (at operation) / 21 W (on standby)
CA-DXU8 11.4 kg
no more than 10% total harmonic distortion.
no more than 10% total harmonic distortion.
more than 10% total harmonic distortion.
no more than 10% total harmonic distortion.
more than 10% total harmonic distortion.
10% total harmonic distortion.
C (chrominance, burst) : PAL : 0.3 V(p-p)/75 Ω
C (chrominance, burst) : NTSC : 0.286 V(p-p)/75 Ω
(Y) : 1 V(p-p)/75 Ω
(PB/PR) : 0.7 V(p-p)/75 Ω
6 Ω - 16 Ω (surround/center speakers)
530 kHz - 1 710 kHz (at 10 kHz)
530 kHz to 1 600 kHz (10 kHz)
South East Asia: 3
Central and South America, Australia: 4
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)
mat
(adjustable with the voltage selector), 50 Hz / 60 Hz
Measured at 1 kHz, with tape recording signal 400 mV
Design and specifications are subject to change without notice.
1-2 (No.MB616<Rev.002>)
DX-U6
Amplifier section Output Power FRONT SPEAKERS 150 W per channel, min. RMS, driven into 4 Ω at 1 kHz with no more
than 10% total harmonic distortion.
SUBWOOFER 150 W, min. RMS, driven into 4 Ω at 63 Hz with no more than 10% t otal
harmonic distortion.
Digital output OPTICAL DIGITAL OUTPUT -21 dBm to -15 dBm (660 nm ±30 nm)
Digital input USB memory
Audio input sensitivity/
Impedance
VIDEO OUT Color system PAL/PAL PROG/NTSC/NTSC PROG selectable
Speaker Terminals 4 Ω - 16 Ω (main speakers/subwoofer)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 710 kHz (at 9 kHz)
AM (MW) tuning range: For Saudi Arabia 531 kHz to 1 602 kHz (9 kHz)
Disc/file player section Region codes Middle East: 2
Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
Playable file MP3, WMA, WAV, JPEG, MPE G-1, MPEG -2, ASF , DivX form at
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
Power requirement: For Australia AC 240 V , 50 Hz
Power consumption 200 W (at operation)
Dimensions (W/H/D) (approx.) 185 mm × 460 mm × 370 mm
Mass (approx.) 10.5 kg
AUX 400 mV/47 kΩ
MIC1/MIC2 3.0 mV/50 kΩ
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
16 Ω - 32 Ω (matrix surround speakers)
530 kHz - 1 710 kHz (at 10 kHz)
530 kHz to 1 600 kHz (10 kHz)
South East Asia: 3
Central and South America, Australia: 4
CD-R/CD-RW (CD/VCD/SVCD/MP3/WMA/WAV/JPEG/MPEG-1/
MPEG-2/ASF/DivX format)
CD-ROM (MP3/WMA/WAV/JPE G/MPEG-1/MPEG-2/ASF/DivX for-
mat)
DVD-R/-RW (D VD -VR/DVD Video/DVD Audio/MP3/WMA/WAV/
JPEG/MPEG- 1 /MPEG-2/ASF /D ivX 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)
with the voltage selector), 50 Hz / 60 Hz
19 W (on standby)
Measured at 1 kHz, with tape recording signal 400 mV
Design and specifications are subject to change without notice.
(No.MB616<Rev.002>)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 essen tial that sa fety critic al com ponen ts ar e repl aced
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.MB616<Rev.002>)
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 condition of th e laser dio de in the opt ical pi ckup. The tes ter's inte rnal power source ca n 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 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.
DVD changer mechanism assembly
DVD servo board
Switch board
DVD traverse mechanism assembly
(No.MB616<Rev.002>)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.MB616<Rev.002>)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB616<Rev.002>)1-7
SECTION 3
A
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 A attachi ng the METAL COVER.
(See Fig.1)
(2) Remove the six screws B attaching the both side of the
METAL COVER. (See Fig.2)
B
Fig.1
A
Fig.2
1-8 (No.MB616<Rev.002>)
3.1.2 Removing the DVD CHANGER MECHANISM assembly
(See Fig.3 to 6)
(1) Remove the two screws C attaching the DVD MECHA-
NISM assembly. (See Fig.3)
(2) Disconnect the card wires from DVD MECHANISM assem-
bly connected to conne ctor CN800
BOARD assembly. (See Fig.4)
(3) Disconnect the connector wire from USB board connected
to connec tor CN811
Fig.5)
(4) Disconnect the card wires from DVD BOARD assembly
connected to connector CN921
board assembly. (See Fig.6)
of the DVD BOARD assembly. (See
and CN810 of the MAIN
and CN930 of the VIDEO
CN811
Fig.5
C
Fig.3
C
CN921
CN930
Fig.6
CN800
Fig.4
CN810
(No.MB616<Rev.002>)1-9
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 assembly. (See Fig.7)
(2) Disconnect the card wi re from SURROUND AM P BOARD
assembly connected to connector CN931
BOARD assembly. (See Fig.7)
(3) Remove the three screws D attaching the VIDEO BOARD
assembly. (See Fig.8)
of the VIDEO
CN920 CN931
Fig.7
D
3.1.4 Removing the MECHA CHASSIS
(See Fig.9, 10)
(1) Remove the two screws E attaching the MECHA CHAS-
SIS. (See Fig.9)
(2) Remove the two screws F attaching the both side of
MECHA CHASSIS (See Fig.10)
Fig.8
E
Fig.9
F
Fig.10
1-10 (No.MB616<Rev.002>)
3.1.5 Removing the REAR COVER with FAN
(See Fig.11, 12)
(1) Remove the One screw G attaching the REAR COVER.
(See Fig.11)
(2) Disengage six hooks a engaged REAR COVER. (See
Fig.11)
(3) Disconnect the connector wir e from FA N connected to con-
nector CN304
(See Fig.12)
of the SURROUND AMP BOARD assembly.
G
hook
a
hook
a
Fig.11
Fig.12
(No.MB616<Rev.002>)1-11
CN304
3.1.6 Removing the TUNER PACK
(See Fig.13, 14)
(1) Disconnect the card wire from TUN ER PAC K connec ted to
connector CN750 of the MAIN BOARD assembly. (See
Fig. 13)
(2) Remove the two screws H attaching the TUNER PACK.
(See Fig.14)
CN750
Fig.13
H
Fig.14
1-12 (No.MB616<Rev.002>)
3.1.7 Removing the REAR PANEL
(See Fig.15, 16)
(1) Remove the four screws J attachi ng th e HEAT SINK by or-
der. (See Fig.15)
(2) Remove the five screws K attaching the REAR PANEL.
(See Fig.15)
(3) Disengage two hooks b engaged both side of the REAR
PANEL. (See Fig.16)
K
J
order 3 order 4
J
order 1 order 2
K
Fig.15
J
J
K
Fig.16
(No.MB616<Rev.002>)1-13
hook b
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 assembly. (See Fig.17)
(2) Disconnect the card wire from CASSETTE MECHANISM A
connected to connector CN730
sembly. (See Fig.17)
(3) Disconnect the card wire from SUBWOOFER AMP
BOARD assemb ly connected t o connector CN820
MAIN BOARD assembly. (See Fig.17)
(4) Disconnect the card wi re from SURROUND AM P BOARD
assembly connected to connector CN830
BOARD assembly. (See Fig.17)
(5) Disconnect the card wire from MIC BOAR D asse mbly c on-
nected to connector CN740
bly. (See Fig.18)
(6) Remove the two screws L attaching the MAIN BOARD as -
sembly. (See Fig.18)
(7) Disconnect the BOARD TO BOARD connector CN850
connected the MAIN BOAR D assembly and RE GULATOR
BOARD assembly. (See Fig.18)
of the MAIN BOARD as-
of the
of the MAIN
of the MAIN BOARD assem-
CN730
CN720
CN820 CN830
Fig.17
CN850
L
Fig.18
CN740
1-14 (No.MB616<Rev.002>)
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
SURROUND AMP BOARD assembly. (See Fig.19)
(2) Disconnect the card wire from FL BOARD assembly con-
nected to connector CN207
assembly. (See Fig.19)
(3) Disconnect the connector wire from TRANS BOARD as-
sembly connected to connector CN201
TOR BOARD assembly. (See Fig.19)
(4) Disconnect the EARTH WIRE from TRANS BOARD as-
sembly connected to pin PP201
BOARD assembly. (See Fig.19)
(5) Remove the one screw M attaching the REGULATOR
BOARD assembly. (See Fig.19)
(6) Disconnect the BOARD TO BOARD connectors CN204
and CN205 connected to SURROUND AMP BOARD assembly and SUBWOOFER AMP BOARD assembly. (See
Fig.20)
of the REGULATO R BOARD
and CN306 of the
of the REGULA-
of the REGULATOR
CN207
M
CN201
PP201
CN306
CN305
Fig.19
CN204 CN205
Fig.20
(No.MB616<Rev.002>)1-15
3.1.10 Removing the SURROUND AMP BOARD assembly
(See Fig.21)
(1) Remove the two screws N attaching the POWER AMP IC.
(2) Remove the one screw P attaching the IC BRACKET.
3.1.11 Removing the SUBWOOFER AMP BOARD assembly
(See Fig.21)
(1) Remove the four screws Q attaching the POWER AMP
ICs.
3.1.12 Removing the FRONT PANEL assembly
(See Fig.22, 23)
(1) Remove the one screw R attaching the EARTH WIRE from
MIC BOARD assembly. (See Fig.22)
(2) Remove the two screws S attaching the FRONT PANEL
assembly. (See Fig.23)
(3) Disengage two hooks c engaged both side of FRONT
PANEL assembly. (See Fig.22)
P
N
Q
Fig.21
R
Fig.22
hook c
SS
Fig.23
1-16 (No.MB616<Rev.002>)
3.1.13 Removing the CASSETTE MECHANISM B
(SeeFig.24)
(1) Disconnect the card wire from CASSETTE MECHANISM B
connected to connector CN120
ANISM BOARD assembly of the CASSETTE MECHANISM A.
(2) Disconnect the connector wire from CASSETTE MECHA-
NISM B connected to connector CN200
MECHANISM BOARD assembly of the CASSETTE
MECHANISM A.
(3) Remove the four screws T attaching the CASSETTE
MECHANISM B.
of the CASSETTE MECH-
of the CASSETTE
CN200
CN210
3.1.14 Removing the CASSETTE MECHANISM A
(See Fig.25)
(1) Remove the four screws U attaching the CASSETTE
MECHANISM A.
T
T
TT
Fig.24
U
U
U
U
Fig.25
(No.MB616<Rev.002>)1-17
3.1.15 Removing the FL BOARD assembly and SWITCH BOARD assembly
V
(See Fig.26)
(1) Remove the four screws V attaching the FL BOARD as-
sembly.
(2) Remove the six screws W attaching the SWITCH BOARD
assembly.
V
3.1.16 Removing the MIC BOARD assembly
(See Fig.27)
(1) Remove the two volume knobs.
(2) Remove the three screws X attaching the MIC BOARD as -
sembly.
WW
Fig.26
1-18 (No.MB616<Rev.002>)
X
Fig.27
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.MB616<Rev.002>)1-19
Fig.3
r
Open det. leve
Tray assemblies
c
b
Side(R) assembly
Fig.4
Tray assembly
1-20 (No.MB616<Rev.002>)
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.MB616<Rev.002>)1-21
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
1-22 (No.MB616<Rev.002>)
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.MB616<Rev.002>)1-23
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
1-24 (No.MB616<Rev.002>)
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.MB616<Rev.002>)1-25
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
1-26 (No.MB616<Rev.002>)
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.MB616<Rev.002>)1-27
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
1-28 (No.MB616<Rev.002>)
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 servo board.
(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.MB616<Rev.002>)1-29
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
1-30 (No.MB616<Rev.002>)
Hook
Fig.32
Hook
Fig.29
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