JVC KDADV-38-J, KDAVX-33-A, KDAVX-33-E, KDAVX-33-EE, KDAVX-33-J Service manual

...
SERVICE MANUAL
MA32120074SERVICE MANUAL
KD-ADV38J, KD-AVX33J,
KD-AVX33E, KD-AVX33EE,
DVD/CD RECEIVER
KD-ADV38J KD-AVX33J
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)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39
COPYRIGHT © 2007 Victor Company of Japan, Limited
KD-AVX33E KD-AVX33EE
No.MA321
2007/4
SPECIFICATION
KD-ADV38/KD-AVX33J
AMPLIFIER
Power Output 20 W RMS × 4 Channels at 4 Ω and [< or =] 1% THD+N
Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4
Load Impedance 4
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Audio Output Level LINE OUT (FRONT/ REAR)/CENTER OUT/SUBWOOFER
Color System NTSC
Video Output (composite) 1 Vp-p/75
Other Terminals Input LINE IN, VIDEO IN, MIC IN, USB input terminal, Antenna input
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
FM Tuner Usable Sensitivity 11.3 dBf (1.0
AM Tuner Sensitivity/Selectivity 20
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
MONITOR
Screen Size 3.5 inch wide liquid crystal display
Number of Pixel 211 200 pixels: 960 (horizontal)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System PAL/NTSC
Aspect Ratio 16:9 (wide)
Allowable Storage Temperature -10
Allowable Operating Temperature 0
USB Standards USB 1.1
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current Less than 500 mA/5 V
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m (10.9 yd)
Line-Out Level/Impedance 5.0 V/20 k
Output Impedance 1 k
Output 2nd AUDIO OUT, VIDEO OUT
Others CD changer, OE REMOTE
FM/AM TUNER
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
50 dB Quieting Sensitivity 16.3 dBf (1.8
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
DVD/CD
DVD, fs=192 kHz 16 Hz to 88 000 Hz
VCD/CD 16 Hz to 20 000 Hz
BLUETOOTH
(4 Ω to 8 Ω allowance)
load (full scale)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
µ
V/75 Ω)
µ
V/75 Ω)
µ
V/35 dB
°
C to +60°C (14°F to 140°F)
°
C to +40°C (32°F to 104°F)
USB
Low Speed: Maximum 1.5 Mbytes
)
×
220 (vertical)
1-2 (No.MA321)
Profile HSP (Headset Profile)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0
Dimensions (W
Mass (approx.) 2.1 kg (4.7 lbs) (excluding accessories)
×
H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm (7-3/16" × 2-1/16" × 6-5/16")
Panel Size (approx.) 188 mm
HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Video Remote Control Profile) SPP (Serial Port Profile) OPP (Object Push Profile)
°
C to +40°C (32°F to 104°F)
×
58 mm × 12 mm (7-7/16" × 2-5/16" × 1/2")
Design and specifications are subject to change without notice.
KD-AVX33E
AMPLIFIER
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 20 W per channel into 4
Load Impedance 4
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Signal-to-Noise Ratio 70 dB
Audio Output Level LINE OUT (FRONT/ REAR)/CENTER OUT/SUBWOOFER
Color System PAL
Video Output (composite) 1 Vp-p/75
Other Terminals Input LINE IN, VIDEO IN, MIC IN, USB input terminal, Aerial input
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0
MW Tuner Sensitivity/Selectivity 20
LW Tuner Sensitivity 50
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
MONITOR
Screen Size 3.5 inch wide liquid crystal display
Number of Pixel 211 200 pixels: 960 (horizontal)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System PAL/NTSC
Aspect Ratio 16:9 (wide)
Allowable Storage Temperature -10
Allowable Operating Temperature 0
Line-Out Level/Impedance 5.0 V/20 k
Output Impedance 1 k
Output 2nd AUDIO OUT, VIDEO OUT
Others CD changer, OE REMOTE
FM/AM TUNER
AM (MW) 522 kHz to 1 620 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
DVD, fs=192 kHz 16 Hz to 88 000 Hz
VCD/CD 16 Hz to 20 000 Hz
harmonic distortion
(4 Ω to 8 Ω allowance)
(LW) 144 kHz to 279 kHz
µ
V/35 dB
µ
V
DVD/CD
°
C to +60°C
°
C to +40°C
load (full scale)
µ
V/75 Ω)
µ
V/75 Ω)
, 40 Hz to 20 000 Hz at no more than 0.8% total
×
220 (vertical)
(No.MA321)1-3
USB
USB Standards USB 1.1
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Low Speed: Maximum 1.5 Mbytes
Compatible Device: Mass storage class
Compatible File System: FAT 32/16/12
Max. Current: Less than 500 mA/5 V
BLUETOOTH
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m
Profile HSP (Headset Profile)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0
Dimensions (W
Mass (approx.) 2.1 kg (excluding accessories)
×
H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Panel Size (approx.) 188 mm
HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Video Remote Control Profile) SPP (Serial Port Profile) OPP (Object Push Profile)
°
C to +40°C
×
58 mm × 12 mm
Design and specifications are subject to change without notice.
KD-AVX33EE
AMPLIFIER
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 20 W per channel into 4
Load Impedance 4
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Signal-to-Noise Ratio 70 dB
Audio Output Level LINE OUT (FRONT/ REAR)/CENTER OUT/SUBWOOFER
Color System PAL
Video Output (composite) 1 Vp-p/75
Other Terminals Input LINE IN, VIDEO IN, MIC IN, USB input terminal, Aerial input
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0
MW Tuner Sensitivity/Selectivity 20
LW Tuner Sensitivity 50
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
Dynamic Range 93 dB
Line-Out Level/Impedance 5.0 V/20 k
Output Impedance 1 k
Output 2nd AUDIO OUT, VIDEO OUT
Others CD changer, OE REMOTE
FM/AM TUNER
AM (MW) 522 kHz to 1 620 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
DVD, fs=192 kHz 16 Hz to 88 000 Hz
VCD/CD 16 Hz to 20 000 Hz
harmonic distortion
(4 Ω to 8 Ω allowance)
(LW) 144 kHz to 279 kHz
µ
V/35 dB
µ
V
DVD/CD
load (full scale)
µ
V/75 Ω)
µ
V/75 Ω)
, 40 Hz to 20 000 Hz at no more than 0.8% total
1-4 (No.MA321)
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
MONITOR
Screen Size 3.5 inch wide liquid crystal display
Number of Pixel 211 200 pixels: 960 (horizontal)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System PAL/NTSC
Aspect Ratio 16:9 (wide)
Allowable Storage Temperature -10
Allowable Operating Temperature 0
USB
USB Standards USB 1.1
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current Less than 500 mA/5 V
BLUETOOTH
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m
Profile HSP (Headset Profile)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0
Dimensions (W
Mass (approx.) 2.1 kg (excluding accessories)
×
H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Panel Size (approx.) 188 mm
°
C to +60°C
°
C to +40°C
Low Speed: Maximum 1.5 Mbytes
HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Video Remote Control Profile) SPP (Serial Port Profile) OPP (Object Push Profile)
°
C to +40°C
×
58 mm × 12 mm
×
220 (vertical)
Design and specifications are subject to change without notice.
KD-AVX33U
AMPLIFIER
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 20 W per channel into 4
harmonic distortion.
Signal-to-Noise Ratio 70 dB
Load Impedance 4
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Audio Output Level LINE OUT (FRONT/ REAR)/CENTER OUT/SUBWOOFER
Color System NTSC/PAL
Video Output (composite) 1 Vp-p/75
Other Terminals Input LINE IN, VIDEO IN, MIC IN, USB input terminal, Antenna input
Frequency Range FM 87.5 MHz to 108.0 MHz
Line-Out Level/Impedance 5.0 V/20 k
Output Impedance 1 k
Output 2nd AUDIO OUT, VIDEO OUT
Others CD changer
FM/AM TUNER
AM 531 kHz to 1 602 kHz
(4 Ω to 8 Ω allowance)
load (full scale)
, 40 Hz to 20 000 Hz at no more than 0.8% total
(No.MA321)1-5
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
AM Tuner Sensitivity/Selectivity 20
DVD/CD
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
DVD, fs=192 kHz 16 Hz to 88 000 Hz
VCD/CD 16 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
MONITOR
Screen Size 3.5 inch wide liquid crystal display
Number of Pixel 211 200 pixels: 960 (horizontal)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System NTSC/PAL
Aspect Ratio 16:9 (wide)
Allowable Storage Temperature -10
Allowable Operating Temperature 0
USB
USB Standards USB 1.1
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current Less than 500 mA/5 V
BLUETOOTH
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m
Profile HSP (Headset Profile)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0
×
Dimensions (W
Mass (approx.) 2.1 kg (excluding accessories)
H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Panel Size (approx.) 188 mm
µ
V/35 dB
°
C to +60°C
°
C to +40°C
Low Speed: Maximum 1.5 Mbytes
HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Video Remote Control Profile) SPP (Serial Port Profile) OPP (Object Push Profile)
°
C to +40°C
µ
V/75 Ω)
×
58 mm × 12 mm
×
220 (vertical)
Design and specifications are subject to change without notice.
KD-AVX33A
AMPLIFIER
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 20 W per channel into 4
harmonic distortion.
Signal-to-Noise Ratio 70 dB
Load Impedance 4
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
(4 Ω to 8 Ω allowance)
, 40 Hz to 20 000 Hz at no more than 0.8% total
1-6 (No.MA321)
Audio Output Level LINE OUT (FRONT/ REAR)/CENTER OUT/SUBWOOFER
Color System NTSC/PAL
Video Output (composite) 1 Vp-p/75
Other Terminals Input LINE IN, VIDEO IN, MIC IN, USB input terminal, Antenna input
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0
AM Tuner Sensitivity/Selectivity 20
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
Screen Size 3.5 inch wide liquid crystal display
Number of Pixel 211 200 pixels: 960 (horizontal)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System NTSC/PAL
Aspect Ratio 16:9 (wide)
Allowable Storage Temperature -10
Allowable Operating Temperature 0
USB Standards USB 1.1
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current Less than 500 mA/5 V
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m
Profile HSP (Headset Profile)
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0
Dimensions (W
Mass (approx.) 2.1 kg (excluding accessories)
×
H ×D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Line-Out Level/Impedance 5.0 V/20 kΩ load (full scale)
Output Impedance 1 k
Output 2nd AUDIO OUT, VIDEO OUT
Others CD changer
FM/AM TUNER
AM 531 kHz to 1 602 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
DVD/CD
DVD, fs=192 kHz 16 Hz to 88 000 Hz
VCD/CD 16 Hz to 20 000 Hz
MONITOR
USB
BLUETOOTH
GENERAL
Panel Size (approx.) 188 mm
µ
V/75 Ω)
µ
V/75 Ω)
µ
V/35 dB
°
C to +60°C
°
C to +40°C
Low Speed: Maximum 1.5 Mbytes
HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Video Remote Control Profile) SPP (Serial Port Profile) OPP (Object Push Profile)
°
C to +40°C
×
58 mm × 12 mm
×
220 (vertical)
Design and specifications are subject to change without notice.
(No.MA321)1-7
1.1 Safety Precautions
SECTION 1
PRECAUTION
!
!
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.
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
1-8 (No.MA321)
1.2 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.
1.2.1 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 plate
(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.
1.3 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) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1.4 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the pickup unit.
• Apply solder to the short land before the card wire is disconnected from the connector on the pickup unit. (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 after connecting the card wire.
Flexible wire
CN101
Short-circuit points
Mechanism control board
(No.MA321)1-9
1.5 Important for laser products
when open. Do not stare into beam
procedures other than those specified here in may result in
(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.
.
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
1-10 (No.MA321)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MA321)1-11
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the Heat sink (See Fig.1)
(1) Remove the two screws A and two screws B attaching the
Heat sink.
3.1.2 Removing the Top chassis assembly (See Fig.2 to 4)
(1) From the top side of the main body, remove the two screws
C attaching the both side of Top chassis assembly. (See Fig.2)
(2) From the bottom side of the main body, remove the two
screws D attaching the Top chassis assembly. (See Fig.3)
(3) From the back side of the main body, remove the four
screws E attaching the Top chassis assembly. (See Fig.4)
A
B
Fig.1
D
C
Fig.2
D
Fig.3
1-12 (No.MA321)
E
Fig.4
3.1.3 Removing the Main board assembly
(See Fig.5 and 6)
(1) Remove the two screws F attaching the Rear bracket as-
sembly. (See Fig.5)
(2) Disconnect the connector wire from Gear bracket unit con-
nected to connector CN891 (See Fig.6)
(3) Disconnect the connector wire from motor connected to
connector CN881
(4) Disconnect the card wire from Front chassis assembly con-
nected to connector CN962 (See Fig.6)
(5) Remove the two screws G attaching the Main board as-
sembly. (See Fig.6)
(6) Slide the Main board assembly to rear side and lift up it,
then take out the Main board assembly.(See Fig.6)
of the Main board assembly. (See Fig.6)
of the main board assembly.
of the Main board assembly.
F
Fig.5
CN962
CN891
G
CN881
G
3.1.4 Removing the DVD mechanism assembly
(See Fig.7)
(1) Remove the three screws H attaching the DVD mechanism
assembly.
Fig.6
H
H
H
Fig.7
(No.MA321)1-13
3.1.5 Removing the Connection board assembly (See Fig.8)
(1) Disconnect the card wire from DVD mechanism assembly
connected to connector CN965 and CN969 of the Connec­tion board assembly.
(2) Remove the four screws J attaching the Connection board
assembly.
CN965
3.1.6 Removing the Rear cover (See Fig.9)
(1) Remove the nine screws K attaching the Rear cover.
3.1.7 Removing the Panel-A control board assembly (See Fig.10)
(1) Remove the one screw L attaching the Panel-A control
board assembly.
J
CN969
J
Fig.8
K
K
Fig.9
L
1-14 (No.MA321)
Fig.10
3.2 DVD mechanism assembly
3.2.1 Removing the mechanism control board
(See Fig.1)
Caution:
Before disconnecting the flexible wire extending from the DVD pickup, solder the short-circuit point on the flexible wire using a grounding soldering iron. If you do not follow this instruction, the DVD pickup may be damaged. (1) Turn over the body, and solder the short-circuit points on
the flexible wire extending from the DVD pickup.
(2) Disconnect the flexible wire from connector CN101
mechanism control board.
(3) Disconnect the card wire from connector CN201
mechanism control board.
(4) Disconnect the flexible wire from connector CN202
mechanism control board.
(5) Unsolder two soldered points a on the mechanism control
board and remove the wire extending from the feed motor. (6) Remove the screw A attaching the lug wire. (7) Remove the two screws B and screw C attaching the
mechanism control board.
Caution:
• As the flexible wire to be connected to CN101
attach it to the mechanism control board using a double tape.
• After reassembling, unsolder the short-circuit points.
on the
on the
on the
, make sure to
Flexible wire
Double tape
CN101
B
Short-circuit points
A
Lug wire
B
CN201
Feed motor
a
C
CN202
Mechanism control board
Fig.1
(No.MA321)1-15
3.2.2 Removing the top cover (See Fig.2)
(1) Remove the two screws D attaching the top cover on the
back of the body.
(2) Remove the top cover upward.
Reference:
When reassembling, set part b of the top cover under the bending part c of the chassis frame.
3.2.3 Removing the mechanism section (See Fig.2 to 4)
• Remove the top cover.
(1) From the bottom of the body, remove the screw E attaching
the lug wire. (See Fig.2.)
(2) Remove the two screws F attaching the right and left stop-
pers on the front side. (See Fig.2.)
(3) Remove the two floating springs on the bottom of the body.
(See Fig.3.)
(4) Move the mechanism section upward and remove from the
chassis frame. The three damper springs come off from the dampers. (See Fig.4.)
Caution:
• When reassembling, reattach the damper spring to the damper respectively and insert the three shafts on the bot­tom of the mechanism to the dampers.
• Before inserting the shaft to the dampers, apply IPA to the hole of damper.
Floating spring
Fig.3
Mechanism section
Stopper
F
Top cover
Stopper
F
D
D
b
c
E
Lug wire
Damper SP.(F)
(Silver)
Damper (F) (Black)
Damper SP.(F)
(Silver)
Damper (F) (Black)
Fig.4
Damper SP.(R)
(Red)
Damper (R) (Purple)
Chassis frame
1-16 (No.MA321)
Fig.2
3.2.4 Removing the clamper unit (See Fig.5 to 7)
• Remove the top cover and the mechanism section.
(1) Remove the clamper2 spring on the bottom of the mecha-
nism section. (See Figs.5.and 6.)
(2) Release the part d of the clamper spring from the bending
part of the chassis base assembly. (See Fig.7.)
(3) Move the clamper unit in the direction of the arrow and turn.
Release the two joints e and f, then remove the clamper unit upward. (See Fig.6.)
3.2.5 Reattaching the clamper unit (See Fig.5 to 9)
(1) Attach the clamper spring to the clamper unit. (See Fig.8.) (2) Move the clamper unit to set the side joints e and f to each
boss of the chassis base assembly. Make sure that part g is inserted to the notch of the chassis base assembly. (See Figs.5 and 9.)
(3) Move the part d of the clamper spring to the outside of the
bending part of the chassis base assembly. (See Fig.7.)
(4) Attach the clamper2 spring to the chassis base assembly.
(See Figs.5 and 6.)
Caution:
When reattaching, temporarily hook the end of the clamper spring as shown in the figure to make the work easy. (See Fig.8.)
Clamper unit
Clamper2 spring
Chassis base assembly
Fig.6
Clamper spring
Clamper spring
f
Clamper2 spring
Chassis base assembly
g
d
Chassis base assembly
Fig.7
e
Fig.5
(No.MA321)1-17
Clamper unit
Clamper unit
Clamper spring
Fig.8
1-18 (No.MA321)
Fig.9
g
Notch
3.2.6 Removing the front unit (See Fig.10 to 12)
• Remove the top cover and the mechanism section.
(1) Disconnect the flexible wire from connector CN202
mechanism control board at the bottom of the body. (See Fig.10.)
(2) Remove the screw G attaching the front unit on the top of
the body. (See Fig.11.)
(3) Move the front unit toward the front to release joint h, and
release two joints i and j on the right side of the chassis base assembly. Then remove the front unit upward. (See Figs.11 and 12.)
(4) Remove the two screws H attaching the switch board. (See
Fig.12.)
Reference:
You can remove the switch board only without removing the front unit.
Caution:
When reassembling, attach the flexible wire extending from the switch board using the double tape. (See Figs.10 and 12.)
Mechanism control board
on the
G
Front unit
h
Fig.11
CN202
Double tape
Fig.10
Flexible wire
Double tape
j
i
H
Switch board
Front unit
G
Fig.12
h
(No.MA321)1-19
3.2.7 Removing the loading arm assembly (See Fig.13 , 14)
• Remove the top cover, the mechanism section and the front
unit. (1) From the top of the body, move the loading arm assembly
from the front side upward, and release the bosses from the right and left joints k and m of the chassis base assem­bly.
(2) Release the boss from notch n of the connect arm on the
right side of the body, and release the boss from notch p of the slide cam assembly on the left side.
m
Loading arm assembly
Side cam assembly
p
m
k
Fig.13
Loading arm assembly
k
n
n
Connect arm
1-20 (No.MA321)
Fig.14
3.2.8 Removing the rod (L)(R)/roller assembly
(See Fig.15 and 16)
• Remove the top cover, the mechanism section, the front unit
and the loading arm assembly. (1) Release the rod (L) and (R) from the joints q at the bottom
of the loading arm assembly (See Fig.15.)
(2) Remove the roller assembly from the loading arm assem-
bly. (See Fig.16.)
(3) Remove the two collars and washer from the roller assem-
bly. (See Fig.16.)
Caution:
After attaching the loading arm assembly to the roller assem­bly, attach the rod (L) and (R). Attach the rods to the right and left collars of the roller. (See Fig.15.) When reattaching the rod (L) and (R) to the loading arm as­sembly, engage each joint as shown in Fig.15. As joints q of the rod (L), let the rod through q before reattaching it.
Collar
Collar
Rod(R) Rod(L)
q
q
q
Collar
Rod(L)
Rod(R)
q
Loading arm assembly
Fig.15
Roller assembly
Loading arm assembly
q
Rod(L)
q
Collar
Washer
Rod(R)
Fig.16
(No.MA321)1-21
3.2.9 Removing the DVD pickup assembly (See Fig.17 to 19)
• Remove the mechanism control board.
(1) From the bottom of the body, turn the feed gear in the di-
rection of the arrow to move the DVD pickup outwards. (See Fig.17.)
(2) Remove the screw J attaching the thrust spring. (See
Fig.17.)
(3) Remove the DVD pickup assembly upward on the L.S.gear
side and release from sub shaft at joint r. Move the lead screw of the DVD pickup assembly in the direction of the arrow to release from joint s. (See Fig.18.)
Caution:
• When releasing the lead screw at joint s, the L.S.collar comes off at the end of the lead screw. When reas­sembling, reattach the L.S.collar to the lead screw and engage joint s. (See Fig.18.)
• When reattaching the L.S.collar, reattach it to the point s of the lead screw, and to the rod (M). Make sure that the L.S.collar is set on the rod (M) spring. (See Fig.18.)
(4) Remove the screw K attaching the rack spring/ rack plate
on the DVD pickup. (See Fig.19.)
(5) Pull out the lead screw. (See Fig.19.)
Caution:
Perform adjustment after replacing the pickup.
DVD Pickup assembly
DVD Pickup assembly
Feed gear
J
Thrust spring
Fig.17
s
L.S.collar
Rod(M)
Lead screw
Sub shaft
L.S.collar
r
L.S.gear
Fig.18
K
Rack spring
Lead screw
Rack plate
DVD Pickup
Fig.19
1-22 (No.MA321)
3.2.10 Removing the spindle motor
r
(See Fig.20)
• Remove the mechanism control board. Remove the two screws L attaching the spindle motor on the bottom of the body.
Caution:
Perform adjustment when reattaching the spindle motor.
3.2.11 Removing the feed motor assembly
(See Fig.21 and 22)
• Remove the mechanism control board. (1) Remove the feed TRI. spring on the bottom of the body.
(See Fig.21.)
(2) Remove the two screws M attaching the feed motor as-
sembly. (See Fig.21.)
(3) Remove the slit washer from the motor H. assembly and
pull out the worm wheel. (See Fig.22.) Remove the two screws N attaching the feed motor. (See Fig.22.)
Spindle motor
Feed TRI. spring
L
Fig.20
M
Feed motor assembly
Fig.21
Slit washer
Worm wheel
Feed moto
N
Motor H. assembly
Fig.22
(No.MA321)1-23
SECTION 4
ADJUSTMENT
4.1 Test instruments required for adjustment
(1) Digital oscilloscope (100MHz) (2) Jitter meter (3) Digital tester (4) Electric voltmeter (5) Tracking offset meter (6) Test Disc : VT501 or VT502 (7) Extension studs : STDV001-3P
(8) Extension cable : EXTSH002-22P ×2
4.3 Connection method
Connection procedure
(1) Attach the front chassis assembly to the main board. (2) Attach the heat sink and rear bracket to the main board. (3) Attach the extension studs to the DVD mechanism assembly. (4) Connect the DVD mechanism assembly and the main board with a extension cable.
4.2 Standard measuring conditions
Power supply voltage : DC14.4V(11 to 16V)
Load impedance : 4 (2 Speakers connection) Line Output : 20k
Caution:
Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power. If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.
STDV001-3P
EXTSH002-22P
EXTSH002-22P
STDV001-3P
1-24 (No.MA321)
4.4 Service mode
4.4.1 Service mode 1 (Indication of a service mode 1 is nothing.)
Keep this state more 2 seconds while continuing pressing the [STANDBY/ON ATTENUATOR] button and [EJECT] button sequentially.
Screen indication
NO EJECT? EMERGENCY EJECT?*1*2
Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button. Operate choice of a menu with a [ENT] button. *1 : When an [ENT] button is pushed in NO EJECT indication, it is set by an EJECT prohibition mode. When an [ENT] button is pushed in EJECT OK indication, it is set by a normal mode. *2 : Forced EJECT movement A screen becomes normal indication after an ENT button was pushed.
4.4.2 Service mode 2
Keep this state more 2 seconds while continuing pressing the [MENU] button, [VOLUME-] button and [ENT] button sequentially.
Screen indication
SERVICE MODE 2
INITIALIZE ALL INITIALIZE INITIALIZE DVD INITIALIZE BT
Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button. Operate choice of a menu with a [ENT] button.
INITIALIZE ALL
INITIALIZE ALL (Each EEPROM is initialized by
NOW INITIALIZE ALL
INITIALIZE ALL OK **
a factory shipment state.) Main micon EEPROM initialization (user entry domain, error history, speaker setting, subarea of J-version, data to pre-set ) Panel micon EEPROM initialization (picture adjustment data) DVD unit EEPROM initialization (except a permanent domain) Bluetooth module EEPROM initialization After clear completion, a screen returns to normal indication after OK indication was displayed for three seconds.
INITIALIZE
INITIALIZE (Initialization of a user area of each
NOW INITIALIZE
INITIALIZE OK **
EEPROM) Main micon EEPROM initialization (a user entry domain ) (a user entry domain, speaker setting, subarea of J-version, data to pre-set ) Panel micon EEPROM initialization (picture adjustment data ) DVD unit EEPROM initialization (except a permanent domain) After clear completion, a screen returns to normal indication after OK indication was displayed for three seconds.
(No.MA321)1-25
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