JVC AX-V8000 - User Manual

SERVICE MANUAL
COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED
No.MB177
2004/3
AUDIO/VIDEO CONTROL AMPLIFIER
MB17720043
AX-V8000
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Area suffix
UP --------------------------- Korea
AUDIO/VIDEO CONTROL AMPLIFIER
STANDBY/ON
STANDBY
PHONES
DIMMER
CC CONVER
DOOR
UP
DOOR
DOWN
MASTER VOLUME
S-VIDEODIGITAL
VIDEO L—AUDIO—R
VIDEO
CHANNEL
TV/VIDEO
MUTING
DVD
ON/OFF ON/OFF
STANDBY/ON STANDBY/ON
STANDBY
TV/CATV/DBS VCR 1
ON
DVD MULTI CD
CDR
PHONO
TAPE/MD
EXT 7.1CH
ANALOG/DIGITAL
CC CONVERTER
EFFECT
LIVENESS
SOUND
TEST
THX
EX/ES/7.1
ANALOG DIRECT
SLEEP DIMMER
FM MODE
DSP SURR/DSPSURROUND
RETURN
100
+
OFF
INPUT
SET
SETUP
MENU
ADJUST
MENU
DVD
MENU
EXIT
TEXT
DISPLAY
123
456
7
/P 89
10
+
100
TV VOL
VOLUME
TUNING
STOP PAUSE
LIGHT
FF/
/ REW
REC
PLAY
DOWN U P
RM-SRXDP20J REMOTE CONTROL
A/V CONTROL RECEIVER
VCR 1 VCR 2
FM/AMVIDEOTV/DBS
ZONE 2
TRANSMITLEARN
ZONE 1
ZONE 2
ZONE 1
ZONE 2 LEARNZONE 1
TV
CATV/
DBS

JVC AX-V8000 Specifications

General

Brand	JVC
Model	AX-V8000
Category	Amplifier
Language	English

Summary

Section 1 Precaution

1.1 Safety Precautions

General safety rules and procedures to follow during service and operation.

1.2 Warning

Important information regarding equipment safety and compliance with standards.

1.3 Caution

Notes on potential hazards like burrs on chassis parts during repair.

1.4 Critical parts for safety

Identification of safety-critical components requiring specific replacement parts.

Section 2 Specific Service Instructions

Section 3 Disassembly

3.1 Main body section

Procedures for disassembling the main body of the amplifier.

3.1.3 Removing the front panel assembly

Step-by-step guide to detach the front panel assembly from the main unit.

3.1.4 Removing the rear panel

Instructions on how to remove the rear panel of the amplifier.

3.1.5 Removing the audio signal 3 board & compu link board

Steps to remove the audio signal 3 and Compu link boards.

3.1.6 Removing the Y;C separator board

Procedure to detach the Y/C separator board.

3.1.7 Removing the system control board

Guide to removing the system control board.

3.1.8 Removing the DSP 1 board & DSP 2 board & shield cover

Steps for removing DSP 1, DSP 2 boards, and shield cover.

3.1.9 Removing the audio signal 1 board

Instructions for removing the audio signal 1 board.

3.1.10 Removing the audio signal 2 board & video board & S video board & component video board & D5 video board

Guide to remove multiple video and audio signal boards.

3.1.11 Removing the main board

Detailed steps for removing the main board.

3.1.12 Removing the speaker relay board

Procedure to detach the speaker relay board.

3.1.13 Removing the regulator board

Instructions for removing the regulator board.

3.1.14 Removing the power transformer 1 with the power 2 board

Steps to remove power transformer 1 and power 2 board together.

3.1.15 Removing the thermal SW 1 board

Procedure to remove the thermal SW 1 board.

3.1.16 Removing the power transformer 2

Guide to detach the power transformer 2.

3.1.17 Removing the power transformer 3 with the power 1 board

Steps to remove power transformer 3 and power 1 board.

3.1.18 Removing the power; fuse board

Instructions for removing the power/fuse board.

3.1.19 Removing the head phone board

Procedure to detach the headphone board.

3.1.20 Removing the power amp. assembly

Steps for removing the entire power amplifier assembly.

3.2 Power amp. assembly section

Detailed disassembly of the power amplifier assembly components.

3.2.1 Removing the relay board & Rch amp. board & Lch amp. board & Cch amp. board & SL;SRch amp. board

Steps to remove multiple amplifier boards from the assembly.

3.2.2 Removing the thermal SW 2 board

Procedure to remove the thermal SW 2 board.

3.2.3 Removing the heat sink

Instructions for detaching the heat sink.

3.3 Front panel assembly section

Detailed disassembly of the front panel assembly.

3.3.1 Removing the FL display board & front AV in board

Steps to remove FL display and front AV in boards.

3.3.2 Removing the power switch board & front DIGITAL in board & motor assembly

Guide to removing power switch board, digital board, and motor.

3.3.3 Removing the door input board

Procedure to detach the door input board.

Section 4 Adjustment

4.1 Adjustment of idling current

Procedure for adjusting the idling current of amplifier channels.

4.2 Idling Current graph (1;2)

Graphs illustrating idling current behavior over time for SL/SR and SBL/SBR channels.

4.3 Idling Current graph (2;2)

Graphs showing idling current behavior for L/R and C channels over time.

Section 5 Troubleshooting