JVC NX-D7UX User Manual

SERVICE MANUAL
COPYRIGHT © 2009 Victor Company of Japan, Limited
No.MB711<Rev.002>
2009/10
COMPACT COMPONENT SYSTEM
MB711<Rev.002>200910SERVICE MANUAL
NX-D7UX, NX-D7UN, NX-D7EE, NX-D7UW,
NX-D7UH, NX-D5UG, NX-D5UX, NX-D5UN,
NX-D5EE, NX-D5UW, NX-D5UH
COPYRIGHT © 2009 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
(for NX-D7) (for NX-D7/NX-D5)
CA-NXD7
SP-NXD7F
SP-NXD7W
SP-NXD7F
SP-NXD7F
SP-NXD7F
SP-NXD7W
SP-NXD7W
SP-NXD7W
CA-NXD5

JVC NX-D7UX Specifications

General

Brand	JVC
Model	NX-D7UX
Category	Stereo System
Language	English

Summary

PRECAUTION

Safety Precautions

Covers general safety guidelines and warnings for handling electrical equipment.

Static Electricity and Component Handling

Instructions to prevent damage from static discharge and handle sensitive parts like optical pickups.

Laser Product Safety Warnings

Specific safety warnings and precautions related to laser radiation exposure.

DISASSEMBLY

Main Unit Disassembly Steps

Procedures for removing the top cover, rear panel, and front panel of the main unit.

Internal Board Removal

Instructions for disconnecting and removing major internal boards such as Main, DVD, Amp, and Power.

DVD Mechanism Disassembly

Step-by-step guide for dismantling the DVD drive, including traverse and pickup assemblies.

ADJUSTMENT

DVD Service Considerations

Important notes regarding DVD section service, including initialization and learning.

DVD Test Mode Operations

Detailed steps on how to enter and operate the DVD test mode for diagnostics.

SCHEMATIC DIAGRAMS

System Block Diagram

High-level overview of system components and their interconnections.

Main Processing and Control Circuits

Detailed schematics for the core processing, system control, and power supply sections.

Audio and DVD Circuitry

Schematics for the amplifier section and the DVD playback/decoding circuits.

Key Board Layouts

Visual guides showing component placement on critical boards like Main, DVD Module, and Power AMP.