Sharp GX-CD30 User Manual

GX-CD30/30C/130/130C
No. S3607GX-CD130
SERVICE MANUAL
GX-CD30
GX-CD30C
GX-CD130
GX-CD130C
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
should be used.
Illustration: GX-CD130
SHARP CORPORATION
Service Headquarters: Sharp Plaza, Mahwah, New Jersey 07430-2135
SHARP ELECTRONICS CORPORATION
CONTENTS
Page
IMPORTANT SERVICE NOTES (FOR GX-CD30/130 ONLY) .......................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
DISASSEMBLY.................................................................................................................................................................. 4
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 6
ADJUSTMENT ................................................................................................................................................................... 8
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 13
TYPES OF TRANSISTOR ............................................................................................................................................... 13
BLOCK DIAGRAM ........................................................................................................................................................... 14
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 18
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 27
FUNCTION TABLE OF IC................................................................................................................................................ 28
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR GX-CD30/130 ONLY)
DIFFERENCE BETWEEN GX-CD30/30C AND GX-CD130/130C
GX-CD30/30C
GX-CD130/130C
REMOTE None Used
CONTROL
X-BASS None Used

Sharp GX-CD30 Specifications

General

Brand	Sharp
Model	GX-CD30
Category	Stereo System
Language	English

Summary

IMPORTANT SERVICE NOTES

Safety Checks and Leakage Current Test

Procedures to ensure user safety by checking lead dress, protective devices, and leakage current.

SPECIFICATIONS

General and Disc Specifications

NAMES OF PARTS

Main Unit and Remote Control Parts Identification

DISASSEMBLY PROCEDURES

General Disassembly Precautions

Important notes on safely disassembling and reassembling the unit.

Component Removal Steps

REMOVING AND REINSTALLING MAIN PARTS

Tape Mechanism Component Handling

CD MECHANISM SECTION

CD Mechanism Component Handling

ADJUSTMENT PROCEDURES

Mechanism Section Adjustments

Checks and adjustments for tape driving force, torque, and speed.

Tuner Section Adjustments

Alignment procedures for FM/AM IF/RF stages and VCO frequency.

TROUBLESHOOTING (CD SECTION)

CD Function and Key Operation Issues

Steps for diagnosing and resolving CD playback or key operation failures.

BLOCK DIAGRAM OVERVIEW

System Control and Servo Block Diagrams

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD

Schematic Diagrams (1/5)

FUNCTION TABLE OF IC

IC701 Pin Functions and Descriptions