Aiwa NSX-VC220 User Manual

SERVICE MANUAL
DATA
NSX-VC220
SPEAKERSYSTEM
CX-NVC220
RC-BAS09 VS
CD
CASSEIVER
REMOTE
CONTROLLER
SX-NVC222
COMPACT DISC
STEREO SYSTEM
BASIC TAPE MECHANISM : ZZM-3 PR2NM
BASIC CD MECHANISM : BZG-2 MVSD3NM
NSX-VC220 HR
S/M Code No. 09-01A-449-8R1
 This Service Manual is the Revision Publishing and replaces
Simple Manual of NSX-VC220 <HR>, (S/M Code No. 09-018-449-8T1).
 If requiring information about the CD mechanism, see Service Manual of
BZG-2, (S/M Code No. 09-00C-353-2N6).
REVISION

Aiwa NSX-VC220 Specifications

General

Brand	Aiwa
Model	NSX-VC220
Category	Stereo System
CD Player	Yes
Number of Discs	1
Cassette Deck	Yes
Radio Tuner	AM/FM
Speakers	2
Remote Control	Yes
Type	Mini System

Summary

System Specifications Overview

Main Unit Specifications

Technical specifications for the main unit, covering Tuner, Amplifier, and Cassette Deck functions.

Disc Player Specifications

Laser Safety During Servicing

Laser Beam Exposure Protection

Critical safety instructions to prevent eye damage from laser radiation.

Optical Block Replacement Precautions

Specific safety measures and steps for replacing the optical block.

Repair Preparation and Diagnostics

Electrolytic Capacitor Discharge Procedure

Procedure for safely discharging power supply capacitors before repair.

Microcomputer Pre-Exchange Diagnostic Checks

Essential checks to confirm microcomputer failure before replacement.

Microcomputer Troubleshooting

Forced Reset Procedure for Microcomputer

Electrical Main Parts List

IC Block Diagrams

IC Function Descriptions

UPD780226GF-024-3BA IC Pinout

IC Pinout and Function Details

Adjustment and Calibration Procedures

Tuner Section Calibration

Procedures for adjusting and calibrating the tuner circuit.

Front Section Calibration

Cassette Deck Calibration

Deck Section Adjustments

Procedures for adjusting and calibrating the cassette tape deck mechanism.

CD Test Mode Functions

CD Test Mode Entry and Exit

CD Test Mode Operations and Checks

Tape Mechanism Details

Speaker Handling Instructions

Speaker Unit Disassembly Methods

Speaker and Accessory Information