JVC KD-G245UH, KD-G140J, KD-G248UF, KD-G245U, KD-G341E Service Manual
...
SERVICE MANUAL
CD RECEIVER
MA372<Rev.004>20092SERVICE MANUAL
KD-G140J, KD-G240J, KD-G244UI, KD-G245U, KD-G245UN,
KD-G245UT, KD-G245UH, KD-G248UF, KD-G341E,
KD-G341EX, KD-G341EY, KD-G341EU, KD-G342E,
KD-G342EX, KD-G342EY,KD-G342EU, KD-G343E, KD-G343EX,
KD-G343EY, KD-G343EU, KD-G347SEE, KD-G347BEE,
KD-G394UI, KD-G395U, KD-G395UN,KD-G395UT, KD-G395UH,
KD-G396U, KD-G396UN, KD-G396UT, KD-G396UH,
KD-G398UF,KD-G396SUI, KD-G299UR, KD-S15J,
KD-G347BEE2, KD-G347SEE2, KD-G245HUN
COPYRIGHT © 2009 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)
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
COPYRIGHT © 2009 Victor Company of Japan, Limited
only for
KD-G140/KD-G240
KD-G394/KD-G395
KD-G396/KD-G398
KD-G299/KD-S15
only for
KD-G240/KD-G341/KD-G342
KD-G343/KD-G347/KD-G394
KD-G395/KD-G396/KD-G398
KD-G299
only for
KD-G347
TABLE OF CONTENTS
only for
KD-G341
KD-G342
KD-G343
KD-G347
only for
KD-G140
KD-G240
KD-G299
KD-S15
No.MA372<Rev.004>
2009/2
SPECIFICATION
KD-G140/KD-G240/KD-S15
Audio amplifier section
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 Ω)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Subwoofer-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Tuner section
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
(400 kHz)
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
(for KD-G240) Max. Bit Rate
WMA (Windows Media®
Audio) Decoding Format
(for KD-G240)
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm (7-3/16” × 2-1/16” × 6-5/16”)
Max. Bit Rate 192 kbps
Panel Size (approx.) 188 mm × 58 mm × 5 mm (7-7/16” × 2-5/16” × 1/4”)
Mass (approx.) 1.3 kg (2.9 lbs) (excluding accessories)
65 dB
CD player section
MPEG1/2 Audio Layer 3
320 kbps
General
Design and specifications are subject to change without notice.
1-2 (No.MA372<Rev.004>)
KD-G244/KD-G245/KD-G248/KD-G394/KD-G395/KD-G396/KD-G398
Audio amplifier section
Maximum Power Output: Front/Rear 50 W per channel
Continuous Power Output (RMS): Front/Rear 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no more than 0.8%
total harmonic distortion.
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance (for KD-G395/KD-G396/KD-G398) 2.5 V/20 kΩ load (full scale)
Output Impedance (for KD-G395/KD-G396/KD-G398) 1 kΩ
Other Terminal (except for KD-G248/KD-G398) AUX (auxiliary) input jack
Tuner section
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
65 dB
(400 kHz)
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation (for KD-G244/KD-G394) 35 dB
(for others) 30 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format (MPEG1/
Max. Bit Rate 320 kbps
2 Audio Layer 3) (for KD-G395/
KD-G396/KD-G398)
WMA (Windows Media® Audio)
Max. Bit Rate 192 kbps
Decoding Format (for KD-G395/
KD-G396/KD-G398)
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Panel Size (approx.) 188 mm × 58 mm × 5 mm
Mass (approx.) 1.3 kg (excluding accessories)
Design and specifications are subject to change without notice.
(No.MA372<Rev.004>)1-3
KD-G341/KD-G342/KD-G343
Audio amplifier section
Maximum Power Output: Front/Rear 50 W per channel
Continuous Power Output (RMS): Front/Rear 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion.
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack
Tuner section
Frequency Range FM 87.5 MHz to 108.0 MHz
AM MW: 522 kHz to 1 620 kHz
LW: 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
65 dB
(400 kHz)
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB
LW Tuner Sensitivity 50 µV
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
Max. Bit Rate 320 kbps
(MPEG1/2 Audio Layer 3)
WMA (Windows Media®
Max. Bit Rate 192 kbps
Audio) Decoding Format
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Panel Size (approx.) 188 mm × 58 mm × 13 mm
Mass (approx.) 1.3 kg (excluding accessories)
Design and specifications are subject to change without notice.
1-4 (No.MA372<Rev.004>)
KD-G347
Audio amplifier section
Maximum Power Output: Front/Rear 50 W per channel
Continuous Power Output (RMS): Front/Rear 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion.
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Other Terminal AUX (auxiliary) input jack
Tuner section
Frequency Range FM1/2 87.5 MHz to 108.0 MHz
FM3 65.00 MHz to 74.00 MHz
AM MW: 522 kHz to 1 620 kHz
LW: 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
65 dB
(400 kHz)
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB
LW Tuner Sensitivity 50 µV
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
Max. Bit Rate 320 kbps
(MPEG1/2 Audio Layer 3)
WMA (Windows Media®
Max. Bit Rate 192 kbps
Audio) Decoding Format
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm
Panel Size (approx.) 188 mm × 58 mm × 13 mm
Mass (approx.) 1.3 kg (excluding accessories)
Design and specifications are subject to change without notice.
(No.MA372<Rev.004>)1-5
KD-G396
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output
(RMS)
Front/Rear 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no more than 0.8%
total harmonic distortion.
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format (MPEG1/2 Audio Layer 3) Max. Bit Rate: 320 kbps
®
WMA (Windows Media
Audio) Decoding Format Max. Bit Rate: 192 kbps
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D)
(approx.)
Installation Size 178 mm × 50 mm × 160 mm
Panel Size 178 mm × 50 mm × 17 mm
Mass 1.3 kg (excluding accessories)
Design and specifications are subject to change without notice.
1-6 (No.MA372<Rev.004>)
KD-G299
Audio amplifier section
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 Ω)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Subwoofer-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Tuner section
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
65 dB
(400 kHz)
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
WMA (Windows Media®
Max. Bit Rate
Max. Bit Rate 192 kbps
MPEG1/2 Audio Layer 3
320 kbps
Audio) Decoding Format
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W × 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 × 58 mm × 5 mm (7-7/16” × 2-5/16” × 1/4”)
Mass (approx.) 1.3 kg (2.9 lbs) (excluding accessories)
Design and specifications are subject to change without notice.
(No.MA372<Rev.004>)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.MA372<Rev.004>)
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
Mechanism control board
CN102
Short land section
Pickup
(No.MA372<Rev.004>)1-9
1.5 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
1-10 (No.MA372<Rev.004>)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1 Main body (used figure is KD-G341)
3.1.1 Removing the FRONT CHASSIS assembly (See Fig.1)
(1) Disengage the four hooks a engaged the both side of the
FRONT CHASSIS assembly.
hook
a
Fig.1
3.1.2 Removing the HEAT SINK (See Fig.2, 3)
(1) Remove the three screws A and the two screws B attaching
the HEAT SINK. (See Fig.2)
(2) Remove the two screws C and the one screw D attaching
the HEAT SINK. (See Fig.3)
A
3.1.3 Removing the BOTTOM COVER (See Fig.4)
(1) Remove the one screw E attaching the BOTTOM COVER.
(2) Slide the BOTTOM COVER to backward.
B
Fig.2
D
C
Fig.3
E
Fig.4
(No.MA372<Rev.004>)1-11
3.1.4 Removing the MAIN BOARD assembly (See Fig.5)
(1) Remove the two screws F attaching the MAIN BOARD assembly.
(2) Disconnect the connector CN501
BOARD assembly and CD MECHANISM assembly.
3.1.5 Removing the CD MECHANISM assembly (See Fig.6)
(1) Remove the three screws G attaching the CD MECHANISM
assembly.
connected to MAIN
CN501
E
Fig.5
F
3.1.6 Removing the SWITCH BOARD assembly (See Fig.7)
(1) Remove the VOLUME KNOB.
(2) Remove the four screws H attaching the REAR COVER.
(3) Disengage the nine hooks b engaged the REAR COVER.
1-12 (No.MA372<Rev.004>)
H
Fig.6
hook
Fig.7
F
b
hook
H
b
3.2 CD MECHANISM assembly section
• Remove the CD MECHANISM assembly from the main body.
Removing the MECHANISM CONTROL BOARD
3.2.1
1
assembly (See Fig.
(1)
From the bottom side of CD MECHANISM assembly,
remove the solders from the soldered sections (
c
) on the MECHANISM CONTROL BOARD assembly.
(See Fig.
(2) Remove the three screws A and one screw B attaching the
MECHANISM CONTROL BOARD assembly. (See Fig.1.)
(3) Solder the short land sections on the pickup. (See Fig.2.)
Caution:
• Solder the short land sections on the pickup before
•
1
.)
disconnecting the flexible wire from the connector
on the MECHANISM CONTROL BOARD as-
CN102
sembly.
If the card wire is disconnected without attaching
solder, the pickup may be destroyed by static
electricity. (See Fig.2.)
When attaching the MECHANISM CONTROL
BOARD assembly, remove the solders from the
short land sections after connecting the flexible
wire to the connector CN102
CONTROL BOARD assembly.
and 2)
a, b
and
on the MECHANISM
Mechanism
control board
a
A
A
Fig.1
b
CN102
B
A
c
Mechanism control board
CN102
Flexible wire
Short land section
Pickup
Fig.2
(No.MA372<Rev.004>)1-13
3.2.2 Removing the top cover (See Fig.3 to 5)
• Remove the MECHANISM CONTROL BOARD assembly.
(1) From the front side of the CD MECHANISM assembly,
change the hook position of the two roller springs. (See
Fig.3.)
(2) From the side of the CD MECHANISM assembly, remove
the six screws C attaching the top cover. (See Fig.3 and 4.)
(3) Take out the top cover in an upward direction. (See Fig.5.)
Top cover
C
Top cover
Fig.5
Roller spring Roller spring
Fig.3
Top cover
C
Fig.4
C
1-14 (No.MA372<Rev.004>)
3.2.3 Removing the roller (See Fig.6)
• Remove the MECHANISM CONTROL BOARD assembly and
top cover.
(1) From the bottom side of the top cover, remove the screw D
attaching the gear holder.
(2) Remove the R.holder assembly from disc plate, and then
take out the roller from R.holder assembly in the direction
of the arrow.
Reference:
When attaching the R.ACT gear (2) and R.ACT gear (3),
apply grease to the section d of R.holder assembly.
Gear holder
Roller gear
R.ACT gear(3)
D
Roller coller
Washer
Roller
3.2.4 Removing the PHOTO BOARD assembly (See Fig.7 and 8)
• Remove the MECHANISM CONTROL BOARD assembly and
top cover.
From the bottom side of the top cover, release the
(1)
projection
7
Fig.
(2) Take out the disc plate in the direction of the arrow. (See
Fig.7.)
(3) From the reverse side of the disc plate, remove the screw
E attaching the PHOTO BOARD assembly. (See Fig.8.)
e
from the notch of the disc plate. (See
.)
R.ACT gear(2)
Top cover
Top cover
d
R.holder assembly
Disc plate
Fig.6
e
e
Disc plate
Fig.7
E
Photo board
Disc plate
Fig.8
(No.MA372<Rev.004>)1-15
3.2.5 Removing the mechanism section (See Fig.9 and 10)
• Remove the MECHANISM CONTROL BOARD assembly and
top cover.
(1)
From the top side of the CD MECHANISM assembly,
F
remove the two screws
assembly. (See Fig.
(2) Remove the two roller springs on the top side of the mecha
frame. (See Fig.9.)
(3) Remove the four SUS springs on the top side of the mecha
frame. (See Fig.9.)
(4) Remove the link spring on the top side of the mecha frame.
(See Fig.10.)
(5) Release section f of the three dampers from the mecha
frame. (See Fig.10.)
Reference:
When attaching the roller spring and SUS spring, keep
direction before remove.
Move the slide cam (R) assembly in the direction of the
(6)
arrow, and then take out the mechanism section in an
upward direction. (See Fig.10.)
Reference:
When attaching the mechanism section, apply grease to
the section g. (See Fig.10.)
attaching the loading motor
9
.)
SUS
spring
SUS
spring
Mechanism section
Roller spring
Loading motor assembly
Fig.9
Damper
Mechanism section
Mecha frame
SUS
spring
F
SUS
spring
g
f
Fig.10
Mecha frame
Slidecam(R)
assembly
Link spring
1-16 (No.MA372<Rev.004>)
3.2.6 Removing the slide cam (L) (See Fig.11 to 13)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
(1) From the top side of the mecha frame, remove the screw G
attaching the cam cover. (See Fig.11.)
Take out the cam cover from mecha frame in an upward
(2)
11
G
.)
Cam cover
direction. (See Fig.
(3) Take out the slide cam (L) in the direction of the arrow.
(See Fig.12.)
Reference:
When attaching the slide cam (L), apply grease to the
section h. (See Fig.13.)
h
Slide cam(L)
h
h
h
h
Slide cam(L)
h
Fig.13
h
h
Mecha frame
Slide cam(L)
Fig.11
Mecha frame
Fig.12
(No.MA372<Rev.004>)1-17
3.2.7 Removing the F.lock lever and slide cam (R) (See
Fig.14 and 15)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
(1) From the top side of the mecha frame, take out the slide
cam (R) assembly in an upward direction. (See Fig.14.)
(2) Rotate the F.lock lever in the direction of the arrow 1, and
then take out the direction of the arrow 2. (See Fig.14.)
Reference:
When attaching the slide cam (R) assembly, the f.lock
lever and the link arm apply grease to the section
14
(See Fig.
and 15.)
h
Slide cam(R) assembly
h
F.lock lever
2
1
h
h
.
Mecha frame
h
h
Link arm
h
Fig.14
Slide cam(R) assembly
h
h
h
3.2.8 Removing the damper (See Fig.16)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
From the mechanism section, pull out the three dampers in the
direction of the arrow.
Reference:
Before inserting the shaft to the dampers, apply IPA to the
pocket j of damper.
h
h
h
Slide cam(R) assembly
Fig.15
Damper (Gray)
Damper (Brown)
j
j
1-18 (No.MA372<Rev.004>)
Damper (Brown)
j
Fig.16
3.2.9 Removing the clamper assembly (See Fig.17)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
(1) From the top side of the mechanism section, release the
clamper spring.
(2) Move the clamper assembly in the direction of the arrow,
and then release the joints (k and m).
Take out the clamper assembly from the T.M chassis
(3)
assembly.
Clamper assembly
Clamper spring
k
T.M. chassis assembly
m
Fig.17
(No.MA372<Rev.004>)1-19
3.2.10 Removing the feed motor (See Fig.18 and 19)
r
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section and clamper assembly.
(1) From the bottom side of the T.M chassis assembly, remove
the two screws H attaching the feed motor assembly. (See
Fig.18.)
Remove the two screws J attaching the feed motor to
(2)
19
f.motor holder. (See Fig.
Reference:
When attaching the f. wheel gear, trigger arm and feed
motor, apply grease to the sections (n, p and q). (See
Fig.18 and 19.)
3.2.11 Removing the SWITCH BOARD assembly (See
Fig.18)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section, clamper assembly and feed motor
assembly.
From the bottom side of the T.M chassis assembly, take out
the SWITCH BOARD assembly in an upward direction from
T.M chassis assembly.
.)
Feed motor assembly
Switch board
H
n
F.wheel gear
p
Trigger arm
3.2.12 Removing the loading motor (See Fig.20)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section and clamper assembly.
(1) From the right side of the L.M base assembly, remove the
two screws K attaching the loading motor.
(2) Take out the loading motor in the direction of the arrow
from the L.M base assembly.
Reference:
When attaching the loading motor, apply grease to the
section r.
T.M. chassis assembly
Feed motor
F.worm gear
q
K
L.M. base assembly
Fig.18
Comp. spring
J
F.motor holder
Fig.19
L.worm gear
Loading moto
r
1-20 (No.MA372<Rev.004>)
Fig.20
3.2.13 Removing the pickup assembly (See Fig.21 to 22)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section, clamper assembly and feed motor
assembly.
Caution:
• Do not touch section u on the pickup assembly. (See Fig.21
and 22.)
(1) From the bottom side of the T.M chassis assembly, move
the pickup assembly in the direction of the arrow from the
T.M chassis assembly. (See Fig.21.)
(2) Pull out the main shaft. (See Fig.21.)
(3) Remove the screw M attaching the pickup to the rack plate.
(See Fig.22.)
Reference:
When attaching the loading motor, apply grease to the
sections s and t. (See Fig.21.)
Pick up assembly
s
t
Main shaft
u
T.M. chassis assembly
Rack plate
u
Pick up
Fig.21
M
Fig.22
(No.MA372<Rev.004>)1-21
3.2.14 Removing the spindle motor (See Fig.23 and 24)
•
Remove the MECHANISM CONTROL BOARD assembly,
top cover, mechanism section, clamper assembly, feed motor
assembly and pickup assembly.
(1) From the top side of the T.M chassis assembly, remove the
CD T.table assembly from the spindle motor. (See Fig.23.)
(2) Remove the two screws N attaching the spindle motor.
(See Fig.23.)
(3) Take out the spindle motor from the bottom side of the T.M
chassis assembly. (See Fig.23.)
Reference:
When attaching the CD T.table assembly to the spindle
motor shaft, apply loctite 460 to inside the CD T.table
assembly. (See Fig.24.)
NN
Spindle motor
Fig.23
CD T.table assembly
CD T.table assembly
T.M.chassis assembly
Loctite
Spindle motor
Fig.24
1-22 (No.MA372<Rev.004>)
SECTION 4
ADJUSTMENT
4.1 Adjustment method
Test instruments required for adjustment
(1) Digital oscilloscope (100MHz)
(2) Electric voltmeter
(3) Digital tester
(4) Tracking offset meter
(5) Test Disc JVC :CTS-1000
(6) Extension cable for check
EXTGS004-26PL x 1
Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
How to connect the extension cable for adjusting
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.
Standard measuring conditions
Power supply voltage DC14.4V(10.5 to 16V)
Load impedance 20K.(2 Speakers connection)
Output Level Line out 2.5V (Vol. MAX)
Dummy load
Exclusive dummy load should be used for AM,and FM. For FM
dummy load,there is a loss of 6dB between SSG output and
antenna input.The loss of 6dB need not be considered since
direct reading of figures are applied in this working standard.
Extension cable
EXTGS004-26PL
(No.MA372<Rev.004>)1-23
SECTION 5
TROUBLESHOOTING
5.1 16 PIN CORD DIAGRAM (for KD-G140, KD-G240, KD-S15)
BK
RD
BL
WH
Black
Red
Blue
White
8
7
6
5
4
3
2
1
BK
8
BK
RD
NC
BL/WH
WH
GN
VI
GY
GN
VI
GY
YL
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
Green
Violet
Gray
Yellow
16
15
14
13
12
11
10
9
16
5
7
3
11
2
10
4
12
1
YL
BL/WH
RD
GN
GN/BK
VI
VI/BK
WH
WH/BK
GY
GY/BK
9
1-24 (No.MA372<Rev.004>)
5.2 16 PIN CORD DIAGRAM (for Asia except KD-G248UF, KD-G398UF)
BK
RD
BL
WH
Black
Red
Blue
White
8
7
6
5
4
3
2
1
BK
8
BK
RD
BL
BL/WH
WH
GN
VI
GY
GN
VI
GY
YL
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
Green
Violet
Gray
Yellow
16
15
14
13
12
11
10
9
16
11
10
12
6
5
7
3
2
4
1
YL
BL
BL/WH
RD
GN
GN/BK
VI
VI/BK
WH
WH/BK
GY
GY/BK
9
(No.MA372<Rev.004>)1-25
5.3 16 PIN CORD DIAGRAM (for KD-G248UF, KD-G398UF)
8
7
6
5
4
3
2
1
BK
RD
BL
BL/WH
WH
GN
VI
GY
7 RD
16 YL
8 BK
6 BL
3 GN
11 GN/BK
2 VI
10 VI/BK
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
16
15
14
13
12
11
10
9
MEMORY
ACC
GND
RL+
RL-
RR+
RR-
BK
RD
BL
Black
Red
Blue
WH White
GN
VI
GY
YL
Green
Violet
Gray
Yellow
RD
NC
NC
BL
RD
RD 7
YL 4
NC
2
4
YL
NC
6
8
BK
8
5
7
8
1
2
1
3
5
7
12 WH/BK
RR
FR
FL
RL
ANT
4 WH
1 GY
9 GY/BK
5 BL/WH
Rear Right
Front Right
Front Left
Rear Left
Auto Antenna
FL+
FL-
FR+
FR-
REMOTE
REMOTE
ACC
MEMORY
GND
Remote out
ACC Line
Memory Backup Battery+
Ground
REMOTE OUT
VI
1
GY
3
WH
5
GN
7
5
6
3
4
VI/BK
GY/BK
WH/BK
GN/BK
2
4
6
8
1-26 (No.MA372<Rev.004>)
5.4 16 PIN CORD DIAGRAM (for Europe)
10
12
14
16
BR
YL
NC
BK
NC
NC
11
13
BL/WH
15
RD
1
2
3
4
5
6
7
8
9
VI
VI/BK
GY
GY/BK
WH
WH/BK
GN
GN/BK
VI/BK
2
4
GY/BK
WH/BK
6
8
GN/BK
RR+
RR-
FR+
FR-
FL+
FL-
RL+
RL-
VI
GY
WH
GN
1
BK
RD
Black
Red
3
BL
5
7
WH White
BR
Blue
Brown
GN
VI
GY
YL
Green
Violet
Gray
Yellow
RR
FR
FL
RL
10
BR
YL
12
BL/WH
13
RD
15
16
BK
Rear Right
Front Right
Front Left
Rear Left
TEL
MEMORY
REMOTE
ACC
GND
ANT
ACC
TEL
GND
MEMORY BACKUP
DIRECT TO BATTERY
ACC + 12Volt
Auto Antenna
ACC Line
Telephone Muting
Ground
+12Volt
GROUND
REMOTE
Remote out
MEMORY
Memory Backup Battery+
(No.MA372<Rev.004>)1-27
5.5 16 PIN CORD DIAGRAM (for KD-G396S)
8
BK
7
RD
BL
6
5
NC
4
WH
3
GN
2
VI
1
GY
BK
8
YL
16
RD
7
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
16
15
14
13
12
11
10
Gray
GY
VI Violet
Green
GN
White
WH
BL
RD
BK
YL
Blue
Red
Black
Yellow
9
20
19
18
17
16
15
14
13
12
11
BK
NC
WH/BK
GY/BK
GN/BK
VI/BK
NC
NC
NC
NC
20
10
2
YL
NC
WH
GY
GN
VI
NC
NC
RD
BL
10
9
8
7
6
5
4
3
2
1
6
4
12
3
11
2
10
1
9
BL
WH
WH/BK
GN
GN/BK
VI
VI/BK
GY
GY/BK
1
8
18
6
16
5
15
7
17
1-28 (No.MA372<Rev.004>)
5.6 16 PIN CORD DIAGRAM (for KD-G396S)
GY
VI
GN
WH
8
8
7
6
5
4
3
2
1
Gray
Violet
Green
White
BK
BK
RD
NC
NC
WH
GN
VI
GY
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
RD
BK
YL
16
15
14
13
12
11
10
9
Red
Black
Yellow
GN
VI
NC
RD
YL
WH
GY
GN/BK
VI/BK
BK
WH/BK
GY/BK
16
7
4
12
3
11
2
10
1
YL
RD
WH
WH/BK
GN
GN/BK
VI
VI/BK
GY
GY/BK
9
(No.MA372<Rev.004>)1-29
5.7 16 PIN CORD DIAGRAM (for KD-G299)
8
7
6
5
4
3
2
1
BK
RD
NC
BL/WH
WH
GN
VI
GY
7 RD
16 YL
8 BK
5 BL/WH
3 GN
11 GN/BK
2 VI
10 VI/BK
YL
NC
NC
NC
WH/BK
GN/BK
VI/BK
GY/BK
16
15
14
13
12
11
10
9
MEMORY
REMOTE
ACC
GND
RL+
RL-
RR+
RR-
BK
RD
BL
Black
Red
Blue
WH White
GN
VI
GY
YL
Green
Violet
Gray
Yellow
RD
1
3
5
7
NC
NC
BL/WH
RD
RD 7
YL 4
NC
2
4
YL
NC
6
8
BK
8
5
7
8
1
2
4 WH
12 WH/BK
1 GY
9 GY/BK
RR
FR
FL
RL
Rear Right
Front Right
Front Left
Rear Left
FL+
FL-
FR+
FR-
REMOTE
ACC
MEMORY
GND
Remote out
ACC Line
Memory Backup Battery+
Ground
5
6
3
4
VI
1
GY
3
WH
5
GN
7
VI/BK
GY/BK
WH/BK
GN/BK
2
4
6
8
1-30 (No.MA372<Rev.004>)
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