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Sharp GX-CD130C

Sharp GX-CD130C
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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
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Sharp GX-CD130C Specifications

General IconGeneral
BrandSharp
ModelGX-CD130C
CategoryStereo System
LanguageEnglish

Summary

Important Service Notes

Before Returning the Audio Product (Fire & Shock Hazard)

Safety checks to prevent fire and shock hazards.

Specifications

Technical specifications of the audio product.

Names of Parts

Main Unit Parts Identification

Identification of parts on the main audio unit.

Remote Control Parts Identification

Identification of parts on the remote control.

Disassembly Procedures

Disassembly Precautions

Important precautions before disassembling the unit.

Step-by-Step Disassembly Guide

Step-by-step guide for disassembling the unit.

Removing and Reinstalling Main Parts

Tape Mechanism Section Procedures

Procedures for removing tape mechanism components.

Tape Head Removal (TAPE 1)

Detailed steps for removing tape heads.

Tape Head Removal (TAPE 2)

Detailed steps for removing tape playback head.

Pinch Roller Removal (TAPE 12)

Steps for removing pinch rollers.

Tape Mechanism Belt Removal

Steps for removing tape mechanism belts.

Tape Mechanism Motor Removal

Steps for removing tape mechanism motors.

CD Mechanism Section

Pickup Removal Procedure

Steps to remove the CD pickup mechanism.

Fitting of Dial Pointer

Tuner PWB Removal and Dial Wheel Adjustment

Removing tuner PWB and adjusting the dial wheel.

Adjustment Procedures

Mechanism Section Adjustments

Checks and adjustments for the tape mechanism.

Tuner Section Adjustments

Adjustment procedures for the tuner section.

FM IFRF Adjustment

Adjustment points for FM Intermediate Frequency/Radio Frequency.

AM IFRF Adjustment

Adjustment points for AM Intermediate Frequency/Radio Frequency.

VCO Frequency Adjustment

Adjustment of the Voltage Controlled Oscillator frequency.

CD Section Operation and Testing

CD Test Mode Procedures

Procedures to enter and use the test mode.

LCD Mode Display Explanation

Explanation of the LCD display modes.

CD Section Troubleshooting

CD Function Will Not Work

Troubleshooting steps for when the CD function fails.

CD Operating Keys Work

Troubleshooting when CD keys operate but CD does not.

CD Troubleshooting (Continued)

Playback Only When Disc Loaded

Troubleshooting playback requiring a loaded disc.

Check the Tracking System

Detailed checks for the CD tracking system.

CD Troubleshooting (Continued)

Check the Spin System

Troubleshooting steps for the CD spin system.

Check the VCO-PLL System

Troubleshooting steps for the VCO-PLL system.

No Sound Emitted (HF Normal)

Diagnosing no sound with normal HF waveform.

Notes on Schematic Diagrams

Resistor Symbol and Designation

Explanation of resistor symbols and designations.

Capacitor Symbol and Designation

Explanation of capacitor symbols and designations.

Schematic Diagram Marking Conventions

Explanation of symbols used in schematic diagrams.

Safety Critical Parts Identification

Identification of safety-critical parts.

Block Diagrams Overview

Block Diagram (14): Microcomputer and Pickup

Block diagram of the microcomputer and pickup unit.

Block Diagram (14): Laser Driver and Driver IC

Block diagram of the laser driver and driver IC.

Block Diagrams (Continued)

Block Diagram (24): Servo Amplifier and Control IC

Block diagram of the servo amplifier and control IC.

Block Diagram (24): Driver IC

Block diagram of the driver IC.

Block Diagrams (Continued)

Block Diagram (34): FM Front End and IF MPX ICs

Block diagram of FM front-end and IF MPX ICs.

Block Diagram (34): PlaybackRecord Amplifier

Block diagram of the playback/record amplifier.

Block Diagrams (Continued)

Block Diagram (44): Power Amplifier

Block diagram of the power amplifier IC.

Block Diagram (44): Power Transformer and Tape Mechanism

Diagram of power transformer and tape mechanism.

Schematic Diagrams (15)

Schematic: Laser Driver Q805

Schematic for the laser driver.

Schematic: Servo Amplifier IC801

Schematic for the servo amplifier IC.

Schematic: ServoSignal Control IC802

Schematic for the servo/signal control IC.

Schematic Diagrams (25)

Schematic: ServoSignal Control IC802

Schematic for the servo/signal control IC.

Schematic: Driver IC IC804

Schematic for the driver IC.

Schematics: Spin and Slide Motors

Schematics for the motors.

Wiring of P.W.Board (14)

Switch PWB-A5 Wiring Diagram

Wiring diagram for the switch PWB.

Display PWB-A2 Wiring Diagram

Wiring diagram for the display PWB.

Wiring of P.W.Board (24)

CD Motor PWB-E Wiring Diagram

Wiring diagram for the CD motor PWB.

CD Servo PWB-D Wiring Diagram

Wiring diagram for the CD servo PWB.

Schematic Diagrams (35)

Schematic: FM Front End IC1

Schematic for the FM front-end IC.

Schematic: FMAM IF MPX IC2

Schematic for the FM/AM IF MPX IC.

Schematic: PlaybackRecord Amplifier IC201

Schematic for the playback/record amplifier.

Schematic Diagrams (45)

Schematic: Power Amplifier IC501

Schematic for the power amplifier IC.

Schematic: Power Transformer T651

Schematic for the power transformer.

Schematic: Tape Mechanism

Schematic block for the tape mechanism.

Wiring of P.W.Board (34)

Tuner PWB-B Wiring Diagram

Wiring diagram for the tuner PWB.

Power PWB-A3 Wiring Diagram

Wiring diagram for the power PWB.

Terminal PWB-A4 Wiring Diagram

Wiring diagram for the terminal PWB.

Wiring of P.W.Board (44)

Main PWB-A1 Wiring Diagram

Wiring diagram for the main PWB.

Deck PWB-C Wiring Diagram

Wiring diagram for the deck PWB.

Schematic Diagrams (55)

Display PWB-A2 Schematic

Schematic diagram for the display PWB.

Switch PWB-A5 Schematic

Schematic diagram for the switch PWB.

Function Table of IC701

System Control Microcomputer Functions

Function table for the system control microcomputer.

Sharp Parts Guide

How to Order Replacement Parts

Instructions for ordering replacement parts.

Reference Information

General reference information for parts identification.

Capacitor Identification

Information on identifying capacitors.

Resistor Identification

Information on identifying resistors.

Component Parts List (Part 1)

Integrated Circuits, Transistors, Diodes

List of ICs, transistors, and diodes with part numbers.

Passive Components (Filters, Transformers, Coils)

List of passive components like filters, transformers, and coils.

Component Parts List (Part 2)

Resistors List

List of resistors with part codes.

Component Parts List (Part 3)

Other Circuitry Parts

List of other circuitry components with part codes.

Mechanism Parts

List of mechanism parts with part codes.

CD Mechanism Parts

List of CD mechanism parts with part codes.

Component Parts List (Part 4)

Cabinet Parts

List of cabinet parts with part codes.

Speaker Box Parts

List of speaker box parts with part codes.

Accessories & PWB Assemblies

List of accessories and PWB assemblies.

Exploded Views

CD Mechanism Exploded View

Exploded view of the CD mechanism.

Tape Mechanism Exploded View

Exploded view of the tape mechanism.

Cabinet Exploded View

Exploded views of cabinet components and sub-assemblies.

Speaker Box Exploded View

Exploded view of the speaker box.

Packing of the Set

Switch and Knob Settings for Packing

Recommended switch and knob settings for packing.

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