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JVC RC-EX30B Service Manual
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JVC RC-EX30B Service Manual

JVC RC-EX30B Service Manual

Cd portable system
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SERVICE MANUAL
6
MB279
2004
STANDBY/ON
CD/
TUNER/
RANDOM
BAND
TAPE
1
2
3
DISPLAY
4
5
6
HBS/
PRESET EQ
7
8
9
FM MODE
OVER
/BEAT CUT
0
PROGRAM/
+
UP
CLOCK SET
INTRO
PRESET
GROUP
REPEAT
MUTING
-
DOWN
VOLUME
RM-SRCEX30J REMOTE CONTROL
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
CD PORTABLE SYSTEM
RC-EX30B
SERVICE POLICY
No service part is available for this model.
Exchange only.
REMOTE
SENSOR

TABLE OF CONTENTS

COPYRIGHT © 2004 Victor Company of Japan, Limited
PUSH
DISPLAY
A ------------------------ Australia
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
Area suffix
No.MB279
2004/6

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Summary of Contents for JVC RC-EX30B

  • Page 1: Table Of Contents

    SERVICE MANUAL CD PORTABLE SYSTEM MB279 2004 RC-EX30B SERVICE POLICY No service part is available for this model. Exchange only. STANDBY/ON TUNER/ RANDOM BAND TAPE PUSH DISPLAY HBS/ PRESET EQ FM MODE OVER /BEAT CUT PROGRAM/ CLOCK SET INTRO PRESET...
  • Page 2 SPECIFICATION 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 &...

  • Page 3: Precaution

    SECTION 1 PRECAUTION This service manual does not describe PRECAUTION. (No.MB279)1-3...

  • Page 4: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-4 (No.MB279)

  • Page 5: Disassembly

    SECTION 3 DISASSEMBLY 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.
  • Page 6 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 Top cover assembly cover assembly. (1) Release the tab a of the handle using a screwdriver. Return the handle below and pull out in the direction of the arrow.
  • Page 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 Band board before disconnecting the card wire from connector CN502 CN201 on the main board and from the CD servo board. If you CN511 don't observe this instruction, the pickup may be damaged.
  • Page 8 3.1.4 Tuner board (See Fig.11) • Prior to performing the following procedure, remove the main board. (1) Remove the three screws H attaching the tuner board. Tuner board Fig.11 3.1.5 Removing the top switch board (See Fig.12) • Prior to performing the following procedure, remove the main Top switch board board and the tuner board.
  • Page 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 Tab b board. (1) Remove the three screws K attaching the volume board. (2) Pull out the volume board from the volume knob. (3) Remove the four screws L attaching the cover on the side of the power switch.
  • Page 10 3.1.7 Removing the CD mechanism assembly (See Fig.17) • Prior to performing the following procedure, remove the main CD mechanism board. assembly (1) Remove the four screws N attaching the CD mechanism assembly. Top cover assembly Fig.17 1-10 (No.MB279)
  • Page 11 3.1.8 Removing the cassette mechanism assembly Cassette mechanism cover (See Fig.18 ~ 21) (1) Remove the four screws P attaching the cassette mecha- nism cover. (2) Remove the four screws Q 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.
  • Page 12 3.1.9 Removing the LCD & switch board (See Fig.22) • Prior to performing the following procedure, remove the cas- sette mechanism assembly. (1) Remove the eight screws S attaching the LCD & switch board. LCD & switch board Fig.22 3.1.10 Removing the speaker (SeeFig.23) (1) Remove the six screws T attaching the speaker bracket.
  • Page 13 3.1.11 Removing the power transformer and the battery board (See Fig.24, 25) (1) Remove the two screws U attaching the power transform- Battery board (2) Remove the two screws V attaching the power socket. (3) Remove the support board attaching the battery board. (4) Release the tab d setting the battery board and pull out the battery board.

  • Page 14: Adjustment

    SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. 1-14 (No.MB279)

  • Page 15: Troubleshooting

    SECTION 5 TROUBLESHOOTING Block diagram TUNER REMOTE TC9257 TA2149 CONTROL SPEAKER KEY BOARD REMOTE SENSOR PHONE SOURCE POWER AMP SELECTOR 4K76 TA8227 TC9422 FLASH DRAM HY51181 MX29F040 TAPE AN7312 DC SUPPLY ESS 3890 P18211 BATT 6x1.5V POWER SUPPLY HCF4052 TC9462 AC IN CD SERVO CD RF AMP...
  • Page 16 Standard schematic diagrams 5.2.1 Amp section 1-16 (No.MB279)
  • Page 17 (No.MB279)1-17...
  • Page 18 5.2.2 Micon section 1-18 (No.MB279)
  • Page 19 (No.MB279)1-19...
  • Page 20 5.2.3 CD section 1-20 (No.MB279)
  • Page 21 (No.MB279)1-21...
  • Page 22 5.2.4 MP3 section 1-22 (No.MB279)
  • Page 23 (No.MB279)1-23...
  • Page 24 5.2.5 Cassette section 1-24 (No.MB279)
  • Page 25 (No.MB279)1-25...
  • Page 26 5.2.6 Tuner section 1-26 (No.MB279)
  • Page 27 (No.MB279)1-27...
  • Page 28 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB279) Printed in Japan...