JVC RC-EX30B Manuel utilisateur
SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited No.MB279
2004/6
CD PORTABLE SYSTEM
MB27920046
RC-EX30B
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
PUSH
PLAY/PAUSESTOP
PROGRAM/
CLOCK SET
HBS/
PRESET EQ
PRESET
UP
PRESET
DOWN
DISPLAY
TAP E
CD
BAND
RANDOM
TUNER
GROUP
REMOTE
SENSOR
TAPE
FM MODE
/BEAT CUT
PROGRAM/
CLOCK SET
UP
DOWN
INTRO
HBS/
PRESET EQ
REPEAT
STANDBY/ON
DISPLAY
MUTING
PRESET
VOLUME
RM-SRCEX30J REMOTE CONTROL
123
456
789
0
OVER
CD/
RANDOM
TUNER/
BAND
GROUP
+
–
Area suffix
A ------------------------ Australia
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
SERVICE POLICY
No service part is available for this model.
Exchange only.
1-2 (No.MB279)
SPECIFICATION
Design and specifications are subject to change without notice.
CD player CD capacity 1 CD
Signal-to-noise ratio 75 dB
Dynamic range 60 dB
Tuner Frequency range FM 87.5 - 108.0 MHz
AM 522 - 1 629 kHz
Antennas Telescopic antenna for FM
Ferrite core antenna for AM
Cassette deck Frequency response 60 Hz - 10 000 Hz
Wow & flutter 0.15% (WRMS)
Fast wind time Approx. 150 sec. (C-60 cassette)
General Speakers 9 cm cone ×2
Speaker impedance 4 Ω
Output power 4 W (2 W + 2 W) at 4 Ω(10% THD)
Output terminals PHONES ×1
Power supply AC 230 V , 50 Hz DC 9 V (R20 (SUM-1)/D (13D)-size batteries ×6)
Power consumption 18 W (at operation) 3 W (on standby)
Dimensions 420 mm ×178 mm ×250 mm (W/H/D)
Mass Approx. 3.2 kg (without batteries)
(No.MB279)1-3
SECTION 1
PRECAUTION
This service manual does not describe PRECAUTION.
1-4 (No.MB279)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB279)1-5
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 Band the
four screws Cattaching 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 Dattaching 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 connec-
tor CN406 and FM-ANT on the main board.
Fig.1
Fig.2
Fig.3
C
B
C
A
D
A
A
D
Battery cover
FM-ANT
Top cover assembly
Rear cover assembly
Tuner board
CN406
Front panel assembly
Main board
1-6 (No.MB279)
3.1.2 Removing the top cover assembly section and the front panel assembly section
(See Fig.4 to 8)
• Prior to performing the following procedure, remove the rear
cover assembly.
(1) Release the tab aof the handle using a screwdriver. Return
the handle below and pull out in the direction of the arrow.
(2) Disconnect the wire from connector CN404 and 4pin con-
nector on the main board.
(3) Remove the six screws Eand the two screws Fattaching
the top cover.
(4) Draw out the top cover assembly from the front panel as-
sembly section backward.
(5) Disconnect the wire from connector CN501 and CN506 on
the main board, and disconnect the card wire from connec-
tor CN507 and CN508.
(6) Disconnect the wire from board connector CON301 of the
cassette mechanism assembly.
Fig.4
Fig.5
Fig.6
Fig.7
Fig.8
tab atab a
Handle
CN404
Main board
4pin connector
Front panel assembly
Top cover assembly
E
Top cover assembly
E
EE
CD door
F
Main board
CN501,CN506
Main board
CN508,CN507
Cassette mechanism board
CON301
(No.MB279)1-7
3.1.3 Removing the main body
(See Fig.9, 10)
Caution:
Make sure to solder the short-circuit point on the CD servo
board before disconnecting the card wire from connector
CN201 on the main board and from the CD servo board. If you
don't observe this instruction, the pickup may be damaged.
(1) Remove the eight screws Gattaching the main board on
the top cover assembly.
(2) Disconnect the wire from connector CN501, CN502,
CN511, CN202, CN401 and CN504 on the main board.
(3) Disconnect the card wire from connector CN201 on the
main board.
Caution:
If necessary, cut the band.
Fig.9
Fig.10
CN504
CN501
CN202
CN201
CN502
GG
GGG
CN511
Band
CN401
Unsolder
Short-circuit point
CD servo board
1-8 (No.MB279)
3.1.4 Tuner board
(See Fig.11)
• Prior to performing the following procedure, remove the main
board.
(1) Remove the three screws Hattaching the tuner board.
Fig.11
3.1.5 Removing the top switch board
(See Fig.12)
• Prior to performing the following procedure, remove the main
board and the tuner board.
(1) Remove the four screws Jattaching the top switch board.
Fig.12
H
H
Tuner board
J
J
Top switch board
(No.MB279)1-9
3.1.6 Removing the volume board and the power switch board
(See Fig.13 to 16)
• Prior to performing the following procedure, remove the main
board.
(1) Remove the three screws Kattaching the volume board.
(2) Pull out the volume board from the volume knob.
(3) Remove the four screws Lattaching the cover on the side
of the power switch.
(4) Release the three tabs bof the cover on the side of the
power switch.
(5) Remove the three screws Mattaching the power switch
board to the cover.
Caution:
If necessary, unsolder the solder points.
Fig.13
Fig.14
Fig.15
Fig.16
K
K
Volume board
Solder point
Top cover assembly
Volume board
K
K
Volume knob Switch board
Solder point
Side top cover
Switch board
Tab b
L
M
M
Side top cover Power switch board
Solder point
1-10 (No.MB279)
3.1.7 Removing the CD mechanism assembly
(See Fig.17)
• Prior to performing the following procedure, remove the main
board.
(1) Remove the four screws Nattaching the CD mechanism
assembly.
Fig.17
N
N
CD mechanism
assembly
Top cover assembly
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