Aiwa CX-NAJ70 User Manual

SERVICE MANUAL
DATA
COMPACT DISC STEREO
CASSETTE RECEIVER
NSX-AJ70
NSX-SZ70
NSX-SZ70E
U
HR,HS
HA
S/M Code No. 09-005-425-3R2
REVISION
BASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM
BASIC CD MECHANISM: AZG-1 ZD3RDM
CD-CASSEIVER
CX-NAJ70
CX-NSZ70
CX-NSZ70E
SPEAKER
SX-WNAJ70
SX-WNSZ70
SX-WNSZ70
REMOTE CONTROLLER
RC-ZAS01
SYSTEM
NSX-AJ70
NSX-SZ70
NSX-SZ70E
• This Service Manual is the “Revision Publishing” and replace the
“Simple Manual” NSX-AJ70<U> (S/M Code No. 09-001-425-3T1)
NSX-SZ70/SZ70E<HR, HA> (S/M Code No. 09-001-425-3T2)
and NSX-SZ70<HS> (S/M Code No. 09-002-425-3T3).
• If requiring information about the CD mechanisim, see Service Manual
of AZG-1 (S/M Code No. 09-001-335-3N8).
All manuals and user guides at all-guides.com
all-guides.com

Aiwa CX-NAJ70 Specifications

General

Brand	Aiwa
Model	CX-NAJ70
Category	Stereo Receiver
Language	English

Summary

System Specifications

Tuner, Amplifier, and Speaker Specifications

Details specifications for tuner, amplifier, and speaker systems, including power and sensitivity.

Media Player and General Specifications

Covers cassette, CD player specs, power requirements, consumption, and unit dimensions.

Accessories and Package List

Laser Beam Safety During Servicing

General Warnings and Cautions

Highlights crucial warnings and cautions regarding laser beam exposure during servicing operations.

Optical Block Replacement Precautions

Advises on precautions, including electrostatic discharge, when replacing the optical block.

Pre-Repair Procedures and Notes

Forced Discharge of Power Supply Capacitors

Procedure for safely discharging electrolytic capacitors in the power supply block before servicing.

Microcomputer Exchange Pre-checks

Steps to verify microcomputer functionality before replacement, focusing on the HOLD terminal.

Microcomputer Troubleshooting

Forced Reset Procedure

Steps to perform a forced reset on the microcomputer to resolve operational issues.

Microcomputer Soldering Check

Procedure to confirm the soldering state of the microcomputer to rule out connection issues.

Chip Resistor Part Coding

Resistor Value and Dimensions

Explanation of chip resistor coding, including value and dimensional standards.

Transistor Illustrations

Main PCB Wiring Diagram