JVC RC-BF10 Service Manual

SERVICE MANUAL

CD PORTABLE SYSTEM

MB32420049

RC-BF10

SERVICE POLICY

No service part is available for this model.
Exchange only.

PUSH

Area suffix

B ------------------------------ U.K.
E ---------- Continental Europe

TABLE OF CONTENTS

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

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

COPYRIGHT © 2004 Victor Company of Japan, Limited

No.MB324

2004/9

SPECIFICATION

CD player System Compact disc digital audio system

Sampling frequency 44.1 kHz

Number of channels 2 channels (Stereo)

Frequency feature 20 Hz - 20 kHz

Tuner Frequency FM 87.5 MHz - 108.0 MHz

AM 522 kHz - 1,629 kHz

Antennas FM Telescopic antenna

AM Ferrite core antenna

Cassette tape recorder Track method Compact cassette stereo

Erasing method Magnet erasing method

Head Erasing (Magnet)

Recording/playback (Hard permalloy, combination)

Winding speed Approximately 150 seconds (for a 60 minute cassette tape)

Frequency response Normal: 60 Hz - 10,000 Hz

General Clock display 24 hour display

Speakers 9 cm (round shape) × 2, 4 Ω
Output terminal Headphone (stereo mini × 1)
Output power 4W (2 W + 2 W) at 4 Ω (10% THD)

Power source AC 230 V , 50 Hz

Power consumption 15 W (during operation) 3 W (on standby)

Dimensions 420 mm (W) × 178 mm (H) × 250 mm (D)

Weight Approximately 3.4 kg (without batteries)

Design and specifications are subject to change without notice.

1-2 (No.MB324)

SECTION 1

PRECAUTION

This service manual does not describe PRECAUTION.

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MB324)1-3

SECTION 3

A

DISASSEMBLY

3.1 Main body

3.1.1 Removing the rear cover assembly section
(See Fig.1 ~ 3)

(1) Remove the eight screws A, the three screws B and the

four screws D attaching the rear cover assembly on the
back of the body.

(2) Remove the battery cover on the back of the body and re-

move the two screws E attaching the rear cover assembly.

(3) Move the rear cover assembly in the direction of the arrow

and remove. At this time, disconnect the wire from connec­tor CN404

and FM-ANT on the main board.

B

DD

A

E

FM-ANT

A

E

Rear cover assembly

Battery cover

Fig.1

Top cover assembly

Rear cover assembly

Fig.2

Main board

CN404

Rear cover assembly

Fig.3

1-4 (No.MB324)

3.1.2 Removing the cassette mechanism cover

r

(See Fig.4,5)

• Prior to performing the following procedure, remove the rear

cover assembly.
(1) Disconnect the wire from connector CN11

and CN15 on the DSP board respectively.

CN14

(2) Remove the five screws F attaching the cassette mecha-

nism cover. The DSP module section comes off together
with the cassette mechanism cover.

Reference:

• you can detach the DSP module section only. See Fig.29
and Fig.30.

• Detach the cassette mechanism cover before removing the
top cover assembly section and the front panel assembly
section.

, CN12, CN13,

Top cover assembly

Front panel assembly

Cassette mechanism cover

CN14

CN15

Cassette mechanism cove

F

Fig.4

CN13

DSP board

CN11

CN12

F

F

Fig.5

F

F

(No.MB324)1-5

3.1.3 Removing the top cover assembly section and the front panel assembly section
(See Fig.6 ~ 10)

• Prior to performing the following procedure, remove the rear

cover assembly and cassette mechanism cover.
(1) Disconnect the wire from connector CN406 and CN407 on

the main board.

(2) Remove the four screws G and the two screws H attaching

the top cover assembly.

(3) Draw out the top cover assembly from the front panel as-

sembly section backward.

(4) Disconnect the wire from connector CN106

board, and disconnect the card wire from connector CN108
and CN109.

(5) Disconnect the wire from connector CON301 on the cas-

sette mechanism board. Remove the band from the wire.

Top cover assembly

Front panel assembly

on the main

Top cover assembly

Front panel assembly

CON301

Fig.8

Front panel assembly

H

CN109

CN108

CN106

Main board

CN407

Fig.6

GG

Top cover assembly

CN406

Top cover assembly

Fig.9

Cassette mechanism board

CON301

1-6 (No.MB324)

Fig.7

Band

Fig.10

3.1.4 Top cover assembly section

• Prior to performing the following procedure, remove the rear cover assembly and the front panel assembly.

3.1.4.1 Removing the main body

(See Fig.11~13)

Caution:

Make sure to solder the short-circuit point on the CD servo
board before disconnecting the card wire from connector

on the main board and from the CD servo board. If you

CN703

don’t observe this instruction, the pickup may be damaged.
(1) Remove the eight screws J attaching the main board on

the top cover assembly.

(2) Disconnect the wire from connector CN101

CN103, CN107, CN703 and CN704 on the main board.

(3) Move the main board as shown in the Fig.12. Solder the

short-circuit point on the CD pickup board and disconnect
the wire extending from the main board to the CD pickup
board.

(4) If necessary, cut the band.

Caution:

When reattaching the main board, make sure to connect the
card wire from the CN703
board, and unsolder the short-circuit point.

on the main board to the CD pickup

, CN102,

CN103

CN101

J

CN107

Main board

CN703

J

Fig.11

J

J

CN703

CN102

Main board

CN704

Card wire

CD servo board

Short-circuit point

Fig.12

Card wire

Short-circuit point

Unsolder

Fig.13

(No.MB324)1-7

3.1.4.2 Removing the top switch board and door switch

(See Fig.14,15)

• Prior to performing the following procedure, remove the main

board.
(1) Remove the four screws K attaching the top switch board.
(2) Push two tabs a of the door switch inward and remove the

door switch toward the front side of the top cover assembly.

Door switch

Top switch board

K

Top cover assembly

Top cover assembly

a

K

Fig.14

Door switch

a

Fig.15

1-8 (No.MB324)