JVC KD-AR560, KD-G510 Service Manual
SERVICE MANUAL
CD RECEIVER
MA12220052
KD-AR560,KD-G510
Area suffix
J ------------- Northern America
KD-G510
ARSENAL rogo
SUB WOOFER OUT
KD-AR560
٤
٤
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.MA122
2005/2
SPECIFICATION
AUDIO AMPLIFIER SECTION
Power Output 20 W RMS × 4 Channels at 4 Ω and - 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 ±10 dB at 100Hz
Treble ±10 dB at 10kHz
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance KD-AR560 4.0 V/20 kΩ load (full scale)
KD-G510 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Subwoofer-Out Level/Impedance 2.0 V/20 kΩ load (full scale)
Other terminals CD changer, SUBWOOFER
TUNER SECTION
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 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) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
Capture Ratio 1.5 dB
[AM Tuner] Sensitivity 20 µV
Selectivity 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 96 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) decodingformat 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 (32°F to 104°F)
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm (7-3/16" × 2-1/16" × 5-15/16")
Panel Size (approx.) 188 mm × 58 mm × 11 mm (7-7/16" × 2-5/16" × 7/16")
Mass (approx.) 1.5 kg (3.4 lbs) (excluding accessories)
Design and specifications are subject to change without notice.
1-2 (No.MA122)
1.1 Safety Precautions
SECTION 1
PRECAUTIONS
!
!
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.
(No.MA122)1-3
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 CD players.
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 CD pickup unit.
• Apply solder to the short land before the flexible wire is disconnected from the connector on the CD pickup unit.
(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land after connecting the flexible wire.
Short-circuit point
(Soldering)
Flexible wire
1-4 (No.MA122)
Pickup
2.1 HOW TO IDENTIFY MODELS
2.1.1 NAME PLATE
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
Discernment sign (as same as KD-AR560)
(No.MA122)1-5
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the front panel assembly
(See Fig.1)
(1) Push the detach button in the lower right part of the front
panel assembly and remove the front panel assembly.
(2) Take out the front panel assembly.
3.1.2 Removing the bottom cover
(See Fig.2)
(1) Turn the main body up side down.
(2) Insert a screwdriver under the joints to release the two
joints a on the left side, two joints b on the right side and
joint c on the back side of the main body, then remove the
bottom cover from the main body.
CAUTION:
When releasing the joints using a screwdriver, do not damage
the main board.
Front panel assembly
Detach button
Fig.1
Bottom cover
Joint b
Joint a
Joint a
Joint b
Joint c
Fig.2
1-6 (No.MA122)
3.1.3 Removing the front chassis assembly
(See Figs.3 and 4)
• Prior to performing the following procedures, remove the front
panel assembly and bottom cover.
(1) Remove the two screws A on the both sides of the main
body. (See Fig.3)
(2) Remove the two screws B on the front side of the main
body. (See Fig.4)
(3) Release the two joints d and two joints e on the both sides
of the main body, then remove the front chassis assembly
forward. (See Fig.3)
Joint d
A
Joint e
A
3.1.4 Removing the side panel
(See Fig.5)
Reference:
Remove the front panel assembly as required. (Refer to "3.1.1
Removing front panel assembly")
(1) Remove the two screws C and screw D attaching the side
panel on the left side of the main body.
(2) Take out the side panel from the main body.
Joint d
B
CCD
Joint e
Front chassis assembly
Fig.3
Front chassis assembly
Fig.4
Side panel
Fig.5
(No.MA122)1-7
3.1.5 Removing the rear bracket
(See Fig.6)
• Prior to performing the following procedure, remove the bottom
cover.
(1) Remove the three screws E, three screws F and three
screws G attaching the rear bracket on the back side of the
main body.
(2) Take out the rear bracket.
Reference (For KD-AR560 only):
When attaching the rear bracket to the main body, insert the
subwoofer output into the slot of the rear bracket.
3.1.6 Removing the main board
(See Fig.7)
• Prior to performing the following procedure, remove the front
panel assembly, front chassis assembly, side panel, bottom
cover and rear bracket.
(1) Remove the two screws H attaching the main board.
(2) Disconnect the connector CN501
board.
and take out the main
Rear bracket
F
E E
Insert the subwoofer
output into the slot.
(KD-AR560 only)
Fig.6
CN501
Main board
H
GFG
H
3.1.7 Removing the CD mecha control board
(See Fig.8)
• Prior to performing the following procedure, remove the front
panel assembly, front chassis assembly, side panel, bottom
cover, rear bracket and main board.
(1) Disconnect the card wire from the connector CN601
CD mecha control board.
(2) Remove the five screws J attaching the CD mecha control
board.
(3) Release the claw f, and take out the CD mecha control
board.
Reference:
When attaching the CD mecha control board, attach it to the
claw f and pass the slot g of it into the boss of the CD mechanism assembly.
on the
Claw f
CN601
Fig.7
J
Slot g
J
J
CD mecha control board
Fig.8
1-8 (No.MA122)
3.1.8 Removing the CD mechanism assembly
(See Fig.9)
• Prior to performing the following procedure, remove the front
panel assembly, front chassis assembly, side panel, bottom
cover, rear bracket, main board and CD mecha control board.
(1) Remove the three screws K attaching the top chassis.
(2) Take out the CD mechanism assembly.
K
3.1.9 Removing the switch board
(See Figs.10 to 12)
• Prior to performing the following procedure, remove the front
panel assembly.
(1) Remove the five screws L attaching the front panel assem-
bly. (See Fig.10)
(2) Release the nine joints h, and take out the rear cover. (See
Fig.11)
(3) Release the joint i, and take out the switch board. (See
Fig.12)
Note:
When removing the rear cover assembly and switch board, be
careful not to lose the compression spring and comp. spring.
(See Fig.12)
CD mechanism assembly
Rear cover
Joint h
Top chassis
K
Fig.9
L
Fig.10
Joint h
Joint h
Compression spring
Front panel assembly
Rear cover
Fig.11
Fig.12
Joint h
Switch board
Comp. spring
(No.MA122)1-9
3.2 CD Mechanism section
A
3.2.1 Removing the top cover
(See Figs.1 and 2)
(1) Remove the four screws A on the both side of the body.
(2) Lift the front side of the top cover and move the top cover
backward to release the two joints a.
Top cover
Joints a
A
Joints a
A
Fig.1
Fig.2
Top cover
1-10 (No.MA122)
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