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Aiwa Z-L900 User Manual

Aiwa Z-L900
43 pages
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SERVICE MANUAL
DATA
COMPACT DISC STEREO
CASSETTE RECEIVER
BASIC TAPE MECHANISM : 2ZM-3MK2 PR5NM
BASIC CD MECHANISM : 6ZG-1 ZRDM
Z-L900
LH
S/M Code No. 09-004-424-5R1
REVISION
Z–L900
SPEAKERSYSTEM
CD
CASSEIVER
SX–WZL900
CX–ZL900
REMOTE
CONTROLLER
RC–ZAS12
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
Z-L900 (LH), (S/M Code No. 09-001-424-5T1).
If requiring information about the CD mechanism, see Service Manual of
6ZG-1 ZRDM, (S/M Code No. 09-001-338-7N2).
All manuals and user guides at all-guides.com
all-guides.com
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Aiwa Z-L900 Specifications

General IconGeneral
Remote ControlYes
TypeMini Hi-Fi System
CD PlayerYes
Cassette DeckDouble Cassette Deck
TunerYes, AM/FM

Summary

Specifications

FM Tuner Section

Details for the FM radio tuning range and sensitivity.

AM Tuner Section

Details for the AM radio tuning range and sensitivity.

Amplifier Section

Specifications for power output, distortion, and input/output levels.

Cassette Deck Section

Specifications for tape format, frequency response, and heads.

Compact Disc Player Section

Specifications for laser, D-A converter, and distortion.

Speaker System SX-WZL900

Details on speaker cabinet type, drivers, impedance, and SPL.

General Specifications

Power requirements, consumption, and main unit dimensions/weight.

Laser Beam Safety Precautions

Optical Block Replacement Safety

Precautions for handling optical blocks to prevent damage to diodes.

Pre-Repair Procedures

Electrolytic Capacitor Discharge

Steps to safely discharge power supply capacitors before repair.

Microcomputer Defect Confirmation

Procedures to check microcomputer function before replacement.

Microcomputer Troubleshooting

Reset Procedure

Method for performing a forced reset on the microcomputer.

Soldering Check

Verifying soldering quality of the microcomputer before replacement.

Wiring Diagram - Main / VM

Schematic Diagram - Amplifier Section

Schematic Diagram - Deck Section

Schematic Diagram - Tuner Section

Wiring Diagram - Micon

Schematic Diagram - Micon / Deck

Wiring Diagram - Control

Wiring Diagram - Mic / CD / LEDs

Schematic Diagram - Control / Mic / CD / LEDs

Wiring Diagram - Amplifier 1F

Schematic Diagram - Amplifier 1F

Wiring Diagram - Power Supply

Schematic Diagram - Power Supply

Wiring Diagram - Deck / Heads

FL Display Grid Assignment

Grid Assignment Details

Mapping of FL display grid points to segment control signals.

Adjustment Procedures

Tuner Section Adjustments

Procedures for adjusting tuner frequency, VT, tracking, and IF stages.

Deck Section Adjustments

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

Micon Section Adjustments

Procedure for adjusting the microcomputer oscillator frequency.

Mechanical Exploded View

Tape Mechanism Exploded View

Speaker Disassembly Instructions

Speaker Unit Removal Type 1

Instructions for removing speaker panels and units using basic tools.

Speaker Unit Removal Type 2

Instructions for removing speaker grills, panels, and units with rubber caps.

Speaker Unit Removal Type 3

Instructions for removing speaker units by rotating them counter-clockwise.

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