JVC KSAX-3500 Service manual

SERVICE MANUAL

POWER AMPLIFIER

MA17220053

KS-AX3500

Area suffix

J ------------- Northern America
E ------------- Southern Europe
U -------------------- Other Areas

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.MA172

2005/3

SPECIFICATION

Power Output 55 W RMS × 4 channels at 4 Ω and [ < or = ] 1% THD + N
Signal-to-Noise Ratio 86 dBA (reference: 1 W into 4 Ω)

Maximum Power Output 580 W

Load Impedance 4 Ω (2 Ω to 8 Ω allowance)

4 Ω (4 Ω to 8 Ω allowance) (Bridge mode)

Frequency Response 5 Hz to 50,000 Hz ( +0, -3 dB)

Input Sensitivity/Impedance 1 V/20 kΩ (0.3 V to 6 V, variable)

Distortion Less than 0.005% (at 1 kHz)

Power Requirement DC 14.4 V (11 V to 16 V allowance)

Grounding system Negative ground

Dimensions (W/H/D) 347 mm × 54 mm × 222 mm (13-11/16 in. × 2-3/16 in. × 8-3/4 in.)

Mass (approx.) 2.8 kg (6.2 lbs.)

Design and specifi cations are subject to change without notice.

1-2 (No.MA172)

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.

(No.MA172)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-4 (No.MA172)

SECTION 3

A

A

DISASSEMBLY

3.1 Main board

3.1.1 Removing the main board
(See Fig.1 to 4)

(1) From the bottom of the amplifier, remove the seven screws

A attaching the cover.

(2) From the main body of the amplifier, remove the nine

screws B and the screw C attaching the main board.
(3) Remove the three screws D on top of the rear cover.
(4) Remove the screw E and the four screws F on the front

side of the rear cover.

A

A

Fig.1

B

B

B

C

Fig.2

D

Fig.3

EF

F

Fig.4

(No.MA172)1-5

SECTION 4

ADJUSTMENT

This service manual does not describe ADJUSTMENT.

1-6 (No.MA172)

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

(No.MA172)1-7

Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.MA172)

Printed in Japan

VPT