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JVC RX-8030VBK Service Manual

Audio/video control receiver
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See also: Instructions for Use Manual , Instruction Manual
SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
11
2003
MB103
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
RX-8030VBK
RX-8030V
AUDIO/VIDEO CONTROL RECEIVER
SURROUND
STANDBY
STANDBY/ON
DSP
SPEAKERS ON/OFF
SURROUND/ DSP
OFF
1
2
TV SOUND
DVD MULTI
DVD
VCR 1
VCR 2
VIDEO
/DBS
SUBWOOFER OUT ON/OFF
PHONES

TABLE OF CONTENTS

Area Suffix
UJ --------------------- U.S.Military
MASTER VOLUME
CC CONVERTER
PHONO
CD
CDR
TAPE/MD
FM
AM
ANALOG DIRECT
SETTING
ADJUST
QUICK SPEAKER
SETUP
EXIT
PUSH OPEN
A/V CONTROL RECEIVER
1
2
3
4
5
6
8
9
7/P
10/0
0
+10
No.MB103
2003/12

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Summary of Contents for JVC RX-8030VBK

  • Page 1: Table Of Contents

    SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER MB103 2003 RX-8030VBK Area Suffix UJ --------------------- U.S.Military A/V CONTROL RECEIVER RX-8030V AUDIO/VIDEO CONTROL RECEIVER MASTER VOLUME SURROUND STANDBY STANDBY/ON SPEAKERS ON/OFF SURROUND/ DSP 10/0 CC CONVERTER TV SOUND DVD MULTI VCR 1 VCR 2...
  • Page 2 SPECIFICATION Amplifier Output Power 100 W per channel, min. RMS, driven into 8 Ω at 1 kHz, with no more than 0.8% total harmonic At Stereo operation Front ch distortion. (IEC 268-3/DIN) 100 W per channel, min. RMS, driven into 8 Ω at 1 kHz, with no more than 0.8% total harmonic At Surround operation Front ch distortion.

  • Page 3: Precaution

    SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...

  • Page 4: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-4 (No.MB103)

  • Page 5: Disassembly

    SECTION 3 DISASSEMBLY Removing the top cover Top cover (See Fig.1) (1) From the both sides of the main body, remove the four screws A attaching the top cover. (2) From the back side of the main body, remove the three screws B attaching the top cover.
  • Page 6 Removing the front panel assembly Front panel assembly Earth wire (See Figs.4 and 5) • Prior to performing the following procedures, remove the top cover, rear panel and I/O board. (1) From the top side of the main body, remove the tie bands Wire bundling the wires.
  • Page 7 Removing the tuner, DSP board, Audio board, Audio2 board, Video board and S-Video board (See Fig.6) • Prior to performing the following procedures, remove the top Card wire CN206 CN244 Tuner cover, rear panel and I/O board. (1) From the top side of the main body, remove the tie band bundling the wire.
  • Page 8 Removing the speaker board Micon board Main board Tie band (See Fig.8) CN931 CN932 • Prior to performing the following procedures, remove the top cover, rear panel. (1) From the top side of the main body, remove the tie band bundling the wires.
  • Page 9 Removing the heat sink Main board Heat sink (See Figs.10 and 11) • Prior to performing the following procedures, remove the top cover and main board. (1) From the reverse side of the main board, remove the two screws P attaching the main board to the heat sink. (See Fig.10) (2) Disconnect the connector (CN701...
  • Page 10 3.11 Removing the voltage selector board (See Figs.13 and 14) • Prior to performing the following procedures, remove the top cover. (1) From the back side of the main body, remove the two screws R attaching the voltage board. (See Fig.13) (2) Remove the solders from the soldered sections a on the power transformer board 2 and remove the wires of the voltage selector board.
  • Page 11 3.14 Removing the power supply board Power supply board Card wire Headphone (See Fig.16) jack Tie band • Prior to performing the following procedures, remove the top board cover. (1) From the top side of the main body, disconnect the parallel wire from the connector CN55 on the power transformer...
  • Page 12 3.18 Removing the front key & system control board, front video board (See Figs.19 to 22) • Prior to performing the following procedures, remove the top Front panel assembly cover, rear panel, I/O board, front panel assembly, switch Volume knob board and power switch board.

  • Page 13: Adjustment

    SECTION 4 ADJUSTMENT Adjustment method Tuner section 1. Tuner range 87.5MHz to 108.0MHz 530kHz to 1710kHz Power amplifier section Adjustment of idling current Measurement location B2204-B2205 (Lch), B2213-B2214 (Rch) Adjustment part VR787 (Lch), VR788 (Rch) Attention: This adjustment does not obtain a correct adjustment value immediately after the amplifier is used (state that an in- ternal temperature has risen).

  • Page 14: Troubleshooting

    SECTION 5 TROUBLESHOOTING Self-diagnose function This model incorporates the following self-diagnostic functions. 1. PROTECTOR • The PROTECTOR IN port detects errors such as speaker overcurrent and DC voltage output errors (Active: L). Immediately after detection, all relays are switched off and the alarm display as shown below (blinking at intervals of 0.5 sec. ON and 0.5 sec. OFF) is displayed in the lower part of the FL matrix.
  • Page 15 (No.MB103)1-15...
  • Page 16 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB103) Printed in Japan...