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RC-EX10A
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JVC RC-EX10A, RC-EX10B, RC-EX10S Service Manual

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SERVICE MANUAL
CD PORTABLE SYSTEM
MB27520046
RC-EX10S,RC-EX10B,RC-EX10A
SERVICE POLICY
No service part is available for this model. Exchange only.
A ------------------------ Australia B ------------------------------ U.K. E ---------- Continental Europe EN ----------- Northern Europe EV ------------- Eastern Europe
B ------------------------------ U.K. E ---------- Continental Europe EN ----------- Northern Europe EV ------------- Eastern Europe
RC-EX10S
Area suffix
RC-EX10B RC-EX10A
Area suffix
TABLE OF CONTENTS
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.MB275
2004/6
SPECIFICATION
CD player CD capacity 1 CD
Dynamic range 60 dB
Signal-to-noise ratio 75 dB
Tuner Frequency range FM 88 - 108 MHz
AM 540 - 1 600 kHz
Antenna Telescopic antenna for FM
Ferrite core antenna for AM
Cassette deck section Frequency range 60 hZ - 10 000Hz
Wow and flutter 0.15% (WRMS)
General Speaker 9 cm cone × 2 (4 Ω)
Power output 2 W + 2 W at 4 Ω (10 % THD) (IEC 268-3) Putput terminals Phones × 1 (3.5mm, stereo)
Power supply AC 230 V, 50 Hz
DC 9 V ("R20 (SUM-1)/D (13D)" × 6 )
Power consumption 12 W (at operation), 3 W (on standby)
Dimensions 420 mm (W) × 178 mm (H) × 250 mm (D)
Mass Approx. 3.2 kg (without batteries)
Design and specifications are subject to change without notice.
1-2 (No.MB275)
SECTION 1
PRECAUTION
This service manual does not describe PRECAUTION.
(No.MB275)1-3
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-4 (No.MB275)
SECTION 3
DISASSEMBLY

3.1 Main body

3.1.1 Removing the rear cover assembly section (See Fig.1 to 3)
(1) Remove the eight screws A, the three screws B and the
four screws C 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 D 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 CN405 board.
on the main board, and FM-ANT on the tuner
A
C
B
C
A
D
Tuner board
FM-ANT
Top cover assembly
A
D
Battery cover
Fig.1
Top cover assembly
Fig.2
Front panel assembly
Main board
CN405
Fig.3
(No.MB275)1-5
3.1.2 Removing the top cover assembly section and the front panel assembly section (See Fig.4 to 7)
• Prior to performing the following procedure, remove the rear
cover assembly. (1) Disconnect the wire from connectors CN404 and CN408
on the main board.
(2) Remove the four screws E attaching the top cover assem-
bly.
(3) Open the door and remove the two screws F attaching the
top cover assembly.
(4) Draw out the top cover assembly from the front panel as-
sembly section backward.
(5) Disconnect the wire from connectors CN403
on the main board.
(6) Disconnect the wire from connector CON301 on the cas-
sette mechanism board.
Top cover assembly
Front panel assembly
and CN204
Cassette mechanism board
CD door
CON301
F
Fig.6
Main board
CN403
Main board
CN404
Fig.4
Top cover assembly
E
CN408
E
Main board
CN204
Fig.7
E
1-6 (No.MB275)
E
Fig.5

3.2 Top cover assembly section

3.2.1 Removing the main body
(See Fig.8)
(1) Remove the six screws G attaching the main board on the
top cover assembly. (2) Cut off the band attaching the wire. (3) Disconnect the wire from connector CN406
, CN401, CN407, CN202 on the main board, and
CN403
disconnect the card wire from CN201.
, CN402,
CN401
CN402
CN403
Band
G
Main board
3.2.2 Removing the tuner board (See Fig.9)
(1) Disconnect the wire from connector CN101
board.
(2) Disconnect the wire from connector CN406
board.
(3) Remove the six screws H attaching the tuner board.
on the tuner
on the main
CN407
Top cover assembly
CN202
CN201
Band
CN406
G
Fig.8
H
Tuner board
Main board
CN406
Fig.9
H
CN101
(No.MB275)1-7
3.2.3 Removing the volume board (See Fig.10, 11)
• Prior to performing the following procedure, remove the main
board. (1) Disconnect the wire from connector CN101 on the tuner
board. (2) Remove the three screws J attaching the volume board. (3) Pull out the volume knob from the volume board.
Caution:
The band attaching the wire on the volume board comes off.
J
Top cover assembly
3.2.4 Removing the CD mechanism assembly (See Fig.12)
• Prior to performing the following procedure, remove the main
board. (1) Remove the four screws K attaching the CD mechanism
assembly.
J
Volume knob
Top cover assembly
Volume board
Top cover assembly
Volume board
Tuner board
CN101
Fig.10
Band
J
J
Fig.11
K
1-8 (No.MB275)
CD mechanism
assembly
K
Fig.12

3.3 Front panel assembly section

3.3.1 Removing the cassette mechanism assembly
(See Fig.13 to 16)
(1) Remove the four screws L attaching the cassette mecha-
nism cover.
(2) Remove the four screws M attaching the cassette mecha-
nism assembly. (3) Push Eject button to open the cassette door. (4) Pull out the cassette mechanism assembly in the direction
of arrow. (5) Remove the six screws N attaching the button.
Cassette mechanism cover
LL
Fig.13
Cassette mechanism assembly
Cassette door
N
MM
Fig.14
EJECT button
Fig.15
Button
Cassette mechanism assembly
Fig.16
(No.MB275)1-9
3.3.2 Removing the LCD & switch board (See Fig.17)
• Prior to performing the following procedure, remove the cas-
sette mechanism assembly. (1) Remove the six screws P attaching the LCD & switch
board.
3.3.3 Removing the speaker (SeeFig.18)
(1) Remove the six screws Q attaching the speaker bracket. (2) Peel the tape and glue off attaching the speaker cord.
Caution:
The band comes off when you remove the speaker.
P
LCD & switch board
Fig.17
Speaker Speaker
P
Band
Q
Ta pe
Glue
Speaker bracket
Fig.18
Tape
Q
1-10 (No.MB275)

3.4 Rear cover assembly section

3.4.1 Removing the power transformer and the battery board
(See Fig.19,20)
(1) Remove the two screws R attaching the power transform-
er. (2) Remove the two screws T attaching the power socket. (3) Remove the support board attaching the battery board. (4) Release the tab a setting the battery board and pull out the
battery board. (5) If necessary, unsolder the six solder points.
T
Battery board
R
Support board
Fig.19
Ta p
Solder point
Battery board
a
Fig.20
(No.MB275)1-11
SECTION 4
ADJUSTMENT
This service manual does not describe ADJUSTMENT.
1-12 (No.MB275)

5.1 Block diagram

SECTION 5
TROUBLESHOOTING
LCD DISPLAY
KEY BOARD
DRIVER
BU24530-9A
CD PICKUP
SY REC
VOLUME
DBBS
TUNER
SECTION
REMOTE
CONTROL
TAPE
SECTION
SOURCE SELECT
(SLIDE SWITCH)
for CD
for TUNER
for TAPE
VOLTAGE
REGULATOR
POWER AMP
RECTIFILTER
AC/DC CONVERSE
L/R SPEAKER
HEAD PHONE
AC SUPPLY
DC SUPPLY
BATTERY 6x1.5V
(No.MB275)1-13

5.2 Standard schematic diagrams

5.2.1 Main section
1-14 (No.MB275)
(No.MB275)1-15
5.2.2 CD section
1-16 (No.MB275)
(No.MB275)1-17
5.2.3 Cassette section
1-18 (No.MB275)
(No.MB275)1-19
5.2.4 Tuner section
1-20 (No.MB275)
(No.MB275)1-21
5.2.5 Volume section
1-22 (No.MB275)
(No.MB275)1-23
Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB275)
Printed in Japan
WPC
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