JVC THD-7 Service manual
SERVICE MANUAL
DVD DIGITAL CINEMA SYSTEM
MB63820079SERVICE MANUAL
TH-D7B, TH-D7E, TH-D7EN,
TH-D7EV, TH-D7A, TH-D7US,
TH-D7UX, TH-D7UG
SP-THD7F
SP-THD7W
SP-THD7S
SP-THD7C
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)
XV-THD7
B,E,EN,EV only
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
COPYRIGHT © 2007 Victor Company of Japan, Limited
No.MB638
2007/9
B,E,EN,EV
Center unit
SPECIFICATION
Output power Front
Center 130 W RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Surround
Subwoofer 140 W RMS at 4 Ω at 100 Hz with 10 % total harmonic distortion.
Audio section Digital Input*1 DIGITAL IN OPTICAL -21 dBm to -15 dBm (660 nm ±30 nm)
COAXIAL 0.5V(p-p)/75Ω
Video section Video System PAL
Horizontal Resolution 500 lines
Signal-to-Noise Ratio (Composite signal when “RGB” is selected)
Video Output Level (AV-Scart) Composite video 1.0 V(p-p)/75 Ω
(VIDEO OUT) Component (Y): 1.0 V(p-p)/75 Ω
Video Input Sensitivity/Impedance (VIDEO IN) Composite 1.0 V(p-p)/75 Ω
HDMI HDMI Input (VIDEO 1 IN) PASS THROUGH (up to 225 MHz)
HDMI Output (MONITOR OUT) 576p/720p/1080i
USB storage USB Specification Compatible with USB 2.0 Full Speed
Compatible Device Mass Storage Class
Compatible File System FAT16, FAT32
Bus Power Supply Max. 500 mA
Tuner section Tuner Range FM 87.50 MHz to 108.00 MHz
AM (MW) 522 kHz to 1 629 kHz
General Power Requirements AC 230 V , 50 Hz
Power Consumption 160 W (during operation)
Dimensions (W × H × D) 435 mm × 115 mm × 270 mm
Mass 6.8 kg
*1 Corresponding to Linear PCM Dolby Digital and DTS Digital Surround (with sampling frequency - 32 kHz 44.1 kHz 48 kHz)
140 W per channel RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
130 W per channel RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
54 dB
Y
C
RGB 0.7 V(p-p)/75 Ω
S-video (Y): 1.0 V(p-p)/75 Ω
1.0 W (in standby mode)
1.0 V(p-p)/75 Ω
0.3 V(p-p)/75 Ω
(PB/PR): 0.7V(p-p)/75Ω
(C): 0.3 V(p-p)/75 Ω
1-2 (No.MB638)
Subwoofer (SP-THD7W)
Type Bass-Reflex Type
Speaker 20 cm cone × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 28 Hz to 200 Hz
Sound Pressure Level 75 dB/W•m
Dimensions (W × H × D) 353.5 mm × 351 mm × 248 mm
Mass 8.5 kg
Front speakers (SP-THD7F)
Type 2-Way 3-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone x 2
3 cm dome x 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 83 dB/W•m
Dimensions (W x H x D) 280 mm x 1 100 mm x 280 mm (with stand)
280 mm x 594 mm x 280 mm (without stand)
Mass 8.9 kg each (with stand)
6.5 kg each (without stand)
Center speaker (SP-THD7C)
Type 1-Way 2-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 2
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 84 dB/W•m
Dimensions (W × H × D) 435 mm × 100 mm × 118 mm
Mass 2.2 kg
Surround speakers (SP-THD7S)
Type 1-Way Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 77 dB/W•m
Dimensions (W × H × D) 98.5 mm × 215 mm × 118 mm
Mass 1.0 kg each
(No.MB638)1-3
A
Center unit
Output power Front 140 W per channel RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Center 130 W RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Surround 130 W per channel RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Subwoofer 140 W RMS at 4 Ω at 100 Hz with 10 % total harmonic distortion.
Audio section Digital Input* DIGITAL IN OPTICAL -21 dBm to -15 dBm (660 nm ±30 nm)
COAXIAL 0.5 V(p-p)/75 Ω
Analog input VIDEO 2 AUDIO IN
Video section Video System PAL/NTSC
Horizontal Resolution 500 lines
Signal-to-Noise Ratio 64 dB
Video Output Level Composite 1.0 V(p-p)/75 Ω
S-video-Y 1.0 V(p-p)/75 Ω
S-video-C For PAL: 0.3 V(p-p)/75 Ω
For NTSC: 0.286 V(p-p)/75 Ω
Component-Y 1.0 V(p-p)/75 Ω
Component-PB/PR 0.7 V(p-p)/75 Ω
Video Input Sensitivity/Impedance Composite 1.0 V(p-p)/75 Ω
S-video-Y 1.0 V(p-p)/75 Ω
S-video-C For PAL: 0.3 V(p-p)/75 Ω
For NTSC: 0.286 V(p-p)/75 Ω
HDMI HDMI Input (VIDEO 1 IN) PASS THROUGH (up to 225 MHz)
HDMI Output (MONITOR OUT) For PAL 576p/720p/1080i
For NTSC 480p/720p/1080i
USB storage USB Specification Compatible with USB 2.0 Full Speed
Compatible Device Mass Storage Class
Compatible File System FAT16, FAT32
Bus Power Supply Max. 500 mA
Tuner section Tuner Range FM 87.50 MHz to 108.00 MHz
AM At 10 kHz intervals: 530 kHz to 1 710 kHz
At 9 kHz intervals: 531 kHz to 1 710 kHz
General Power Requirements AC 240 V , 50 Hz
Power Consumption 160 W (during operation)
4.0 W (in standby mode)
Dimensions (W × H × D) 435 mm × 115 mm × 270 mm
Mass 6.8 kg
* Corresponding to Linear PCM Dolby Digital and DTS Digital Surround (with sampling frequency - 32 kHz 44.1 kHz 48 kHz)
1-4 (No.MB638)
Subwoofer
Type Bass-Reflex Type
Speaker 20 cm cone × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 28 Hz to 200 Hz
Sound Pressure Level 75 dB/W•m
Dimensions (W × H × D) 353.5 mm × 351 mm × 248 mm
Mass 8.5 kg
Front speakers (SP-THD7F)
Type 2-Way 3-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 2
3 cm dome × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 83 dB/W•m
Dimensions (W × H × D) 280 mm x 1 100 mm x 280 mm (with stand)
280 mm x 594 mm x 280 mm (without stand)
Mass 8.9 kg each (with stand)
6.5 kg each (without stand)
Center speaker (SP-THD7C)
Type 1-Way 2-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 2
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 84 dB/W•m
Dimensions (W × H × D) 435 mm × 100 mm × 118 mm
Mass 2.2 kg
Surround speakers (SP-THD7S)
Type 1-Way Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 77 dB/W•m
Dimensions (W × H × D) 98.5 mm × 215 mm × 118 mm
Mass 1.0 kg each
(No.MB638)1-5
US,UX,UG
Center unit
Output power Front 140 W per channel RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Center 130 W RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Surround 130 W per channel RMS at 4 Ω at 1 kHz with 10 % total harmonic distortion.
Subwoofer 140 W RMS at 4 Ω at 100 Hz with 10 % total harmonic distortion.
Audio section Digital Input*1 DIGITAL IN OPTICAL -21 dBm to -15 dBm (660 nm ±30 nm)
COAXIAL 0.5V(p-p)/75Ω
Analog input VIDEO 2 AUDIO IN
Analog output AUDIO OUT
Video section Video System PAL/NTSC
Horizontal Resolution 500 lines
Signal-to-Noise Ratio 64 dB
Video Output Level Composite 1.0 V(p-p)/75 Ω
S-video-Y 1.0 V(p-p)/75 Ω
S-video-C For PAL: 0.3 V(p-p)/75 Ω
For NTSC: 0.286 V(p-p)/75 Ω
Component-Y 1.0 V(p-p)/75 Ω
Component-PB/PR 0.7 V(p-p)/75 Ω
Video Input Sensitivity/Impedance
(VIDEO 2 IN)
HDMI HDMI Input (VIDEO 1 IN) PASS THROUGH (up to 225 MHz)
HDMI Output (MONITOR OUT) For PAL 576p/720p/1080i
USB storage USB Specification Compatible with USB 2.0 Full Speed
Compatible Device Mass Storage Class
Compatible File System FAT16, FAT32
Bus Power Supply Max. 500 mA
Tuner section Tuner Range FM 87.50 MHz to 108.00 MHz
General Power Requirements AC 110 V/127 V/220 V - 240 V 50/60 Hz (selectable with the voltage selector)
Power Consumption 160 W (during operation)
Dimensions (W × H × D) 435 mm × 115 mm × 270 mm
Mass 6.8 kg
Composite 1.0 V(p-p)/75 Ω
S-video-Y 1.0 V(p-p)/75 Ω
S-video-C For PAL: 0.3 V(p-p)/75 Ω
For NTSC: 0.286 V(p-p)/75 Ω
For NTSC 480p/720p/1080i
AM (At 10 kHz intervals) For Saudi Arabia: 530 kHz to 1 600 kHz
For the other countries: 530 kHz to 1 710 kHz
AM (At 9 kHz intervals) For Saudi Arabia: 531 kHz to 1 602 kHz
For the other countries: 531 kHz to 1 710 kHz
4.0 W (in standby mode)
*1 Corresponding to Linear PCM Dolby Digital and DTS Digital Surround (with sampling frequency - 32 kHz 44.1 kHz 48 kHz)
1-6 (No.MB638)
Subwoofer (SP-THD7W)
Type Bass-Reflex Type
Speaker 20 cm cone × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 28 Hz to 200 Hz
Sound Pressure Level 75 dB/W•m
Dimensions (W × H × D) 353.5 mm × 351 mm × 248 mm
Mass 8.5 kg
Front speakers (SP-THD7F)
Type 2-Way 3-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 2
3 cm dome × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 83 dB/W•m
Dimensions (W × H × D) 280 mm x 1 100 mm x 280 mm (with stand)
280 mm x 594 mm x 280 mm (without stand)
Mass 8.9 kg each (with stand)
6.5 kg each (without stand)
Center speaker (SP-THD7C)
Type 1-Way 2-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 2
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 84 dB/W•m
Dimensions (W × H × D) 435 mm × 100 mm × 118 mm
Mass 2.2 kg
Surround speakers (SP-THD7S)
Type 1-Way Bass-Reflex Type (Magnetically Shielded Type)
Speaker 8 cm cone × 1
Power Handling Capacity 140 W
Impedance 4 Ω
Frequency Range 75 Hz to 20 000 Hz
Sound Pressure Level 77 dB/W•m
Dimensions (W × H × D) 98.5 mm × 215 mm × 118 mm
Mass 1.0 kg each
(No.MB638)1-7
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.
1-8 (No.MB638)
1.5 Safety Precautions (U.K only)
(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For con-
tinued 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.
(2) Any unauthorised design alterations or additions will void the manufacturer's guarantee; furthermore the manufacturer cannot
accept responsibility for personal injury or property damage resulting therefrom.
(3) Essential safety critical components are identified by ( ) on the Parts List and by shading on the schematics, and must never
be replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in
the product have special safety related characteristics. These characteristics are often not evident from visual inspection. Parts
other than specified by the manufacturer may not have the same safety characteristics as the recommended replacement parts
shown in the Parts List of the Service Manual and 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 re-assembling.
1.5.1 Warning
(1) Service should be performed by qualified personnel only.
(2) This equipment has been designed and manufactured to meet international safety standards.
(3) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(4) Repairs must be made in accordance with the relevant safety standards.
(5) It is essential that safety critical components are replaced by approved parts.
(6) If mains voltage selector is provided, check setting for local voltage.
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.
(No.MB638)1-9
1.6 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.
1.6.1 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.
1.7 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.
1.8 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the pickup unit.
• Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wire
is disconnected without applying solder, the pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land sections after connecting the card wire.
Solder short land section
1-10 (No.MB638)
1.9 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
(No.MB638)1-11
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1 Main body (Used figure are TH-D7E and TH-D7US)
3.1.1 Removing the METAL COVER (See Fig.1, 2)
(1) Remove the four screws A attaching the METAL COVER.
(See Fig.1)
(2) Remove the one screw B attaching the METAL COVER.
(See Fig.1)
When remove the screw B use a screwdriver shown as
follows.
TORX Driver: size T10
Parts number: DR-L70
Remove the two screws C attaching the both side of
(3)
METAL COVER. (See Fig.2)
AAB
Fig.1
3.1.2 Removing the TUNER PACK (See Fig.3, 4)
(1) Disconnect the card wire from the MAIN BOARD assembly
connected to TUNER PACK. (See Fig.3)
(2) Remove the two screws D attaching the TUNER PACK.
(See Fig.4)
C
Fig.2
Tunerpack
connector
Fig.3
D
1-12 (No.MB638)
Fig.4
3.1.3 Removing the REAR PANEL (for European version) (See Fig.5 to 7)
(1) Disconnect the POWER CORD from connector CN101
the POWER BOARD assembly. (See Fig.5)
(2) Remove the three screws E attaching the HDMI BOARD
assembly. (See Fig.6)
(3) Remove the 13 screws F attaching the REAR PANEL.
(When remove the most right side screw, DIGITAL IN
JACK BOARD assembly come off, disconnect the connector wire from CN302
Fig.6, 7)
of the MAIN BOARD assembly.) (See
of
CN101
Fig.5
F
CN302
EF
FF FF
Fig.6
Fig.7
(No.MB638)1-13
3.1.4 Removing the REAR PANEL (for Asian version) (See Fig.8 to 10)
(1) Disconnect the POWER CORD from connector CN101
the POWER BOARD assembly. (See Fig.8)
(2) Disconnect the connector wire from POWER BOARD as-
sembly connected to connector CN111
BOARD assembly. (See Fig.8)
(3) Remove the three screws G attaching the HDMI BOARD
assembly. (See Fig.9)
(4) Remove the 13 screws H attaching the REAR PANEL.
(When remove the most right side screw, DIGITAL IN
JACK BOARD assembly come off, disconnect the connector wire from CN302
Fig.9, 10)
of the MAIN BOARD assembly.) (See
of the FUSE
of
CN101
CN111
Fig.8
GHHHH
HHHHHH
Fig.9
CN302
Fig.10
1-14 (No.MB638)
3.1.5 Removing the AMP BOARD assembly (See Fig.11)
Disconnect the connector wire from POWER BOARD
(1)
CN501
CN514
of the AMP
of the CON-
assembly connected to connector
BOARD assembly.
(2) Remove the one screw J attaching the EARTH WIRE from
FL BOARD assembly. (only European version)
(3) Remove the two screws K attaching the HEAT SINK
BRACKET.
(4) Remove the three screws L attaching the BRACKET.
Disconnect the connector
(5)
assembly connected to connector
NECTION BOAR assembly.
(6) Remove the CONNECTION BOARD assembly from MAIN
BOARD assembly.
3.1.6 Removing the HDMI BOARD assembly (See Fig.12)
(1)
Disconnect the card wire from HDMI BOARD assembly
connected to connector CN203
assembly.
(2)
Remove the one screw M attaching the HDMI BOARD
assembly.
(3)
Disconnect the connector CN2 of the HDMI BOARD
assembly connected to the DVD FRONT END BOARD
assembly.
CN504
of the AMP BOARD
of the MAIN BOARD
(only Europian
JL
version)
CN501 CN504
(Connection board
CN514 inside)
KLL
Fig.11
CN2CN203
M
3.1.7 Removing the DVD MECHANISM assembly (See Fig.13)
Disconnect the card wire from USB BOARD assembly
(1)
CN811
connected to connector
BOARD assembly.
(2) Disconnect the card wire from MAIN BOARD assembly
connected to connector CN701
FRONT END BOARD assembly.
(3) Disconnect the card wire from LOADING BASE assembly
connected to connector CN212
sembly.
(4) Remove the one screw N attaching the DVD MECHANISM
assembly.
of the FRONT END
, CN712 and CN801 of the
of the MAIN BOARD as-
CN801
CN811 CN712
Fig.12
CN212
N
CN701
Fig.13
(No.MB638)1-15
3.1.8 Removing the iPod BOARD assembly (See Fig.14)
(1)
Disconnect the card wire from iPod BOARD assembly
connected to connector CN210
assembly.
(2)
Remove the one screw P attaching the iPod BOARD
assembly.
3.1.9 Removing the FRONT PANEL assembly (See Fig.15 to 17)
(1) Disconnect the card wire from FRONT PANEL assembly
connected to connector CN211
sembly. (See Fig.15)
(2) Remove the one screw Q attaching the EARTH WIRE.
(See Fig.15)
(3) Remove the three screws R attaching the bottom side of
FRONT PANEL assembly. (See Fig.16)
Disengage hook a of the bottom side of FRONT PANEL
(4)
assembly and hook b of the both side of FRONT PANEL
assembly. (See Fig.16, 17)
of the MAIN BOARD
of the MAIN BOARD as-
P
CN210
Fig.14
Q
CN211
Fig.15
hook
RRR
a
Fig.16
Fig.17
hook
b
1-16 (No.MB638)
3.1.10 Removing the POWER BOARD assembly (See Fig.18, 19)
(1) Remove the one screw S attaching the POWER BOARD
assembly. (See Fig.18)
(2) Remove the two screws T attaching the BRACKET. (See
Fig.19)
Disconnect the connector wire from POWER BOARD
(3)
CN151
assembly connected to connector
BOARD assembly. (See Fig.19)
(4) Disconnect the connector wires from POWER TRANS-
FORMER connected to connector CN102
CN104 of the POWER BOARD assembly. (See Fig.19)
of the MAIN
, CN103 and
S
Fig.18
CN151
3.1.11 Removing the FAN (See Fig.20)
(1) Disconnect the connector wire from the FAN connected to
connector CN152
(2) Remove the two screws U attaching the FAN.
of the MAIN BOARD assembly.
T
U
T
CN104 CN103 CN102
Fig.19
CN152
Fig.20
(No.MB638)1-17
3.1.12 Removing the MAIN BOARD assembly (See Fig.21)
(1)
Remove the four screws V attaching the MAIN BOARD
assembly.
3.1.13 Removing the HEAT SINK (See Fig.22, 23)
(1) Remove the three screws W attaching the HEAT SINK.
(See Fig.22)
(2) Remove the three screws X attaching the HEAT SINK.
(See Fig.23)
V
V
Fig.21
W
Fig.22
3.1.14 Removing the USB BOARD assembly (See Fig.24)
Remove the two screws Y attaching the USB BOARD
(1)
assembly.
1-18 (No.MB638)
X
Fig.23
Y
Fig.24
3.1.15 Removing the FL BOARD assembly (See Fig.25, 26)
(1) Remove the MIC volume knob. (for Asian version).
(2) Remove the three screws Z attaching the MIC BOARD
assembly. (for Asian version is MIC BOARD assembly,
for European version is BRACKET BOARD) (See Fig.
Disconnect the card wire from FL BOARD assembly
(3)
CN711
connected to connector
sembly. (for Asian version) (See Fig.25)
(4) Remove the two screws AA attaching the PHONE JACK
BOARD assembly. (See Fig.25)
(5) Disconnect the card wire from TOUCH BOARD assembly
connected to connector CN601
bly. (See Fig.26)
(6) Remove the two screws BB attaching the LED BOARD
assembly. (See Fig.
Remove the nine screws CC attaching the FL BOARD
(7)
assembly. (See Fig.26)
3.1.16 Removing the TOUCH BOARD assembly (See Fig.27)
(1) Remove the three screws DD attaching the TOUCH
BOARD assembly.
26)
of the MIC BOARD as-
of the FL BOARD assem-
25)
Z CN711AA
Fig.25
CN601
BBCCCCCCCC
Fig.26
DD
Fig.27
(No.MB638)1-19
3.2 DVD mechanism
3.2.1 Removing the traverse mechanism
(See Fig.1 to 6)
(1) Remove the two screws A attaching the tramecha holder
from top side of DVD mechanism assembly. (See Fig.1)
(2) Remove the two screws B attaching the DVD module
board. (See Fig.2)
(3) Remove the four screws C attaching the CB holder and
take out it. (See Fig.3)
(4) Remove the four screws D attaching the traverse mecha-
nism. (See Fig.4)
(5) Solder the solder part of DVD pick up. (See Fig.5)
(6) Disconnect the card wire from CN101
DVD module board. (See Fig. 6)
Caution:
• Solder the short land section on the DVD pickup before dis-
connecting the card wire from the connector on the DVD
pickup. If the card wire is disconnected without attaching solders, the pickup may be destroyed by static electricity.
• When attaching the DVD pickup, be sure to remove solders
from the short land section after connecting the card wire to
the connector on the DVD pickup.
and CN201 on the
A
Clamper base
B
A
DVD mechanism assembly
Fig.1
DVD mechanism assembly
B
1-20 (No.MB638)
DVD module board
Fig.2
DVD module board
Solder short land section
Fig.5
C
C
CC
Fig.3
DVD mechanism assembly
Traverse mechanism assembly
DVD module board
CN101
CN201
Fig.6
DD
Fig.4
(No.MB638)1-21
3.2.2 Removing the pickup assembly
(See Fig.7 to 11)
(1) Remove the two rod springs pressing the guide shaft. (See
Fig.7)
(2) Remove the screw E and F attaching the spring holder.
(See Fig.8)
(3) Remove the read screw from traverse mechanism assem-
bly. (See Fig.9)
Caution:
When remove the lead screw, do not loss the middle
gear. (See Fig.10 and 11)
(4) Remove the bar spring pressing the shaft. (See Fig.10)
(5) Take out the pickup assembly from traverse mechanism
chassis by order. (See Fig.11)
(SHAFT)
(T.TABLE)
HOOK
(BAR SPRING)
Fig.10
ROD SPRING ROD SPRING
Fig.7
Spring holder
Fig.8
order 2
order 3
order 1
Fig.11
EF
Middle gear
1-22 (No.MB638)
Lead screw
Fig.9
3.2.3 Removing the feed motor assembly
(See Fig.12)
(1) Remove the one screw G attaching the feed motor assem-
bly.
(2) Remove the feed motor wires from solder part of spindle
motor board.
Splder part
3.2.4 Removing the spindle motor assembly
(See Fig.13)
(1) Remove the three screws H attaching the spindle motor
from spindle motor board.
Middle gear
Lead screw
Fig.12
H
Spindle motor
Fig.13
G
(No.MB638)1-23
3.2.5 Removing the tray assembly
(See Fig.14 & 15)
(1) Remove the two screws J attaching the clamper base.
(See Fig.14)
(2) Remove the one screw K attaching the shaft guide from
bottom side. (See Fig.14)
(3) Remove the two screws L attaching the shaft guide from
top side. (See Fig.15)
Caution:
When attach the tray assembly, boss of loading sub assembly
should attach to guide of bottom side at tray assembly. (See
Fig.15)
J
order 1
order 2
clamper base
L
K
Fig.15
[bottom side]
Fig.14
1-24 (No.MB638)
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