Aiwa SX-WNSZ50 User Manual

SERVICE MANUAL
DATA
COMPACT DISC STEREO
SYSTEM
BASIC TAPE MECHANISM : 6ZM-3 PR2NM
BASIC CD MECHANISM : AZG-1 ZA3RDM
NSX-SZ50
NSX-SZ52
EZ, K
EZ
S/M Code No. 09-004-424-6R2
REVISION
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual",
(S/M Code No. 09-002-424-6T2).
• If requiring information about the CD mechanism, see Service Manual
of AZG-1, (S/M Code No. 09-001-335-3NC).
NSX-SZ50
SPEAKER
SYSTEM
CD
CASSEIVER
REMOTE
CONTROLLER
NSX-SZ52
CX-NSZ50 SX-WNSZ50
CX-NSZ52
SX-WNSZ52
RC-ZAS01
RC-ZAS01
All manuals and user guides at all-guides.com
all-guides.com

Aiwa SX-WNSZ50 Specifications

General

Brand	Aiwa
Model	SX-WNSZ50
Category	Stereo System
Language	English

Summary

Product Specifications

FM Tuner Specifications

MW Tuner Specifications

LW Tuner Specifications

Amplifier Specifications

Power output, distortion, inputs, and speaker compatibility for the amplifier.

Cassette Deck Specifications

Track format, frequency response, recording system, and heads used.

CD Player Specifications

Laser type, D-A converter, signal-to-noise ratio, and harmonic distortion.

Speaker System Specifications

Laser Safety Precautions for Servicing

Laser Servicing Warning

Precautions for avoiding eye exposure to laser beams during servicing.

Laser Servicing Caution

Warnings about potential hazardous radiation exposure from improper adjustments.

Laser Servicing Attention

Optical Block Replacement Precautions

Steps to prevent electrostatic discharge damage to the laser diode.

Repair Preparation and Microcomputer Checks

Power Supply Capacitor Discharge Procedure

Procedure to safely discharge electrolytic capacitors before repair.

Microcomputer Exchange Pre-checks

Checks to perform before replacing the microcomputer.

Microcomputer HOLD Terminal Check

Microcomputer Reset Procedure

Procedure for forced reset if the microcomputer is not functioning correctly.

FL Display Connectivity: Grid and Anode Assignments

FL Display Grid and Anode Connections

Main Board Circuit Schematics

Main Board Schematic (Function/Amp Section)

Schematic diagram for the main board's function and amplifier sections.

Main Board Schematic (Tuner Section)

Schematic diagram for the main board's tuner section.

Front and Deck Board Circuit Schematics

Front Board Schematic

Power Transformer Circuit Schematic

Power Transformer Board Schematic

Schematic diagram for the power transformer (PT) circuit board.

Integrated Circuit (IC) Block Diagrams

IC LA1843 Block Diagram

IC LC72131D Block Diagram

IC BA3835S Block Diagram

IC BU2092F Block Diagram

IC M61503FP Block Diagram

IC BU1920FS Block Diagram

Integrated Circuit (IC) Pin Descriptions

IC LC866548V/LC866560W Pin Descriptions

Detailed pinout and function descriptions for the LC866548V and LC866560W ICs.

IC LC866548V/LC866560W Pin Descriptions (Continued)

Service Adjustment Procedures

Main Board Adjustment Points

Deck Mechanisms Adjustment

Front Board Adjustment Points

Tuner Section Adjustments

Procedures for adjusting tuner frequency and tracking parameters.

Deck Section Adjustments

Procedures for adjusting tape speed, head azimuth, and frequency response.

Front Section Adjustments

Speaker Assembly and Disassembly Guide

Speaker Disassembly Procedures

Front Panel Removal and Attachment