Sharp GX-CD1200W BK User Manual

GX-CD1200W
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CONTENTS
Page
SPECIFICATIONS ...............................................................................................................................................................1
VOLTAGE SELECTION.......................................................................................................................................................2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................... 2
FITTING OF DIAL POINTER ...............................................................................................................................................2
NAMES OF PARTS ............................................................................................................................................................. 3
DISASSEMBLY....................................................................................................................................................................4
REMOVING AND REINSTALLING THE MAIN PARTS....................................................................................................... 5
ADJUSTMENT .....................................................................................................................................................................6
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................ 18
TYPES OF TRANSISTOR AND LED................................................................................................................................. 18
VOLTAGE ..........................................................................................................................................................................18
WAVEFORMS OF CD CIRCUIT........................................................................................................................................19
TROUBLESHOOTING (CD SECTION) ............................................................................................................................. 20
FUNCTION......................................................................................................................................................................... 24
PARTS GUIDE / EXPLODED VIEW
GX-CD1200W(BK)
MODEL GX-CD1200W(GL)
SERVICE MANUAL
SHARP CORPORATION
No. S5039GXCD1200
• 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.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SPECIFICATIONS
Specifications for this model are subject to change without
prior notice.
General
Power source: AC 110-127 V/220-240 V, 50/60 Hz
DC 15 V [“D” size (UM/SUM-1, R20 or HP-
2) battery x 10]
Power consumption: 31 W
Output power: PMPO; 200 W (Total)
(AC operation)
MPO; 50 W (25 W + 25 W)
(AC operation)
RMS; 25 W (12.5 W + 12.5 W)
(DC operation, 10 % T.H.D.)
Input terminal: Mixing microphone(monaural); 600 ohms
Output terminal: Headphones; 16-50 ohms
(recommended; 32 ohms)
Dimensions: Width; 300 mm (11-13/16")
Height; 262 mm (9-1/2")
Depth; 220 mm (8-11/16")
Weight: 4.1 kg (9.1 lbs.) without batteries
Compact disc player
Type: Compact disc
Signal readout: Non-contact, 3-beam semi-conductor laser
pickup
Audio channels: 2
Filter: 8-times oversampling digital filter
D/A converter: 1-bit D/A converter
Wow and flutter: Unmeasurable
(less than 0.001 % W. peak)
Radio section
Frequency range: FM; 88 - 108 MHz
SW1; 2.3 - 7.3 MHz
SW2; 7.3 - 22 MHz
MW; 526.5 - 1,606.5 kHz
Tape recorder section
Frequency response: 60 - 12,000 Hz (Normal tape)
Signal/noise ratio: 40 dB (TAPE 1, recording/playback)
55 dB (TAPE 2, playback)
Wow and flutter: 0.15 % (WRMS)
Motor: DC 9 V electric governor
Bias system: AC bias
Erase system: Magnet erase
Speaker section
Type: 2-way type
Speakers: 12 cm (4-3/4") free-edge speaker x 2
Tweeter x 2
Maximum input power: 25 W
Rated input power: 12.5 W
Impedance: 8 ohms
Dimensions: Width; 235 mm (9-1/4")
Height; 262 mm (10-5/16")
Depth; 220 mm (8-11/16")
Weight: 1.8 kg (4.0 lbs.)/each
PORTABLE CD STEREO
COMPONENT SYSTEM

Sharp GX-CD1200W BK Specifications

General

Type	Stereo System
Brand	Sharp
Model	GX-CD1200W BK
Category	Stereo System
Color	Black
CD Player	Yes
Bluetooth	Yes
USB Playback	Yes
Remote Control	Yes
Connectivity	Bluetooth, USB
Playable Media	CD, CD-R/RW
Radio Tuner	FM
Tuner	FM

Summary

System Specifications Overview

General Specifications

Details the power source, power consumption, output power, input/output terminals, dimensions, and weight of the system.

Radio Section Specifications

Provides frequency range details for FM, SW1, SW2, and MW radio bands.

Tape Recorder Specifications

Lists frequency response, signal-to-noise ratio, wow and flutter, motor, and bias/erase systems for the tape deck.

Speaker Section Specifications

Details speaker type, maximum input power, rated input power, impedance, dimensions, and weight.

Voltage Selection and Power Supply Details

AC Power Cord and Plug Adapter

Illustrates and identifies AC power supply cords and plug adapters for the unit.

Dial Pointer Fitting Procedure

Step-by-step instructions for correctly fitting the dial pointer on the tuner mechanism.

Component Identification and Names

Disassembly Instructions and Procedures

Main Unit Disassembly Steps

Details the step-by-step process for disassembling the main unit, including screw and socket removal.

Speaker Unit Disassembly Steps

Outlines the steps required to remove and disassemble the speaker unit components.

Main Parts Removal and Reinstallation Guide

CD Mechanism Removal and Reinstallation

Provides instructions on how to remove and reinstall the CD mechanism and its pickup.

Tape Mechanism Removal and Reinstallation

Service Adjustment Procedures

Mechanism Section Adjustment Points

Details adjustment points for torque, head azimuth, and tape speed in the mechanism section.

Tuner Section Adjustment Points

Specifies adjustment points for FM IF/RF and AM IF/RF tuning stages.

Deck Section Adjustment Points

Covers adjustments for bias oscillation, beat cancel switch, and amplifier sensitivity.

CD Section Operation Modes

CD Section Test Mode

Explains how to enter and operate the CD section in test mode for diagnostics.

CD Section LCD Mode

Details the procedure for entering the LCD mode for CD section testing.

Laser Lighting Confirmation Procedure

Guides on confirming the laser lighting function for the CD pickup.

Schematic Diagram (Sheet 1 of 4)

Schematic Diagram (Sheet 2 of 4)

Schematic Diagram (Sheet 3 of 4)

Schematic Diagram (Sheet 4 of 4)

PWB Wiring Diagram (Sheet 1 of 4)

PWB Wiring Diagram (Sheet 2 of 4)

PWB Wiring Diagram (Sheet 3 of 4)

PWB Wiring Diagram (Sheet 4 of 4)

Schematic Notes and Component Identification

Schematic Diagram Notes

Provides notes on resistor/capacitor symbols, voltage measurements, and schematic changes.

Transistor and LED Type Identification

Lists common transistor and LED types used, with front view diagrams.

Voltage Measurement Points

Tabulates measured voltages at various IC pins under different operating conditions.

CD Circuit Waveform Analysis

CD Function Troubleshooting Guide

CD Lens Cleaner Usage

Instructions and cautions for using a CD lens cleaning disc to maintain optical pickup performance.

Laser Failure Diagnosis Steps

Focus Failure Diagnosis Steps

Diagnostic steps for identifying focus failure, including waveform checks.

Focus Servo and Spindle Motor Failure Diagnosis

Spindle Motor CLV Servo Failure

Diagnostic steps for spindle motor CLV servo failures, including waveform checks.

Track Search and Sled Motor Failure Diagnosis

Sled Motor Operation Failure

Troubleshooting steps for sled motor operation failures, including waveform and voltage checks.

Sled Servo Failure

Diagnostic steps for sled servo failures, including waveform checks.

IC802 Function Table Part 1

IC802 Function Table Part 2

IC802 Function Table Part 3

IC802 Function Table Part 4

Parts Replacement Guide

Capacitor and Resistor Code Key

Explains the coding system used for identifying capacitor and resistor types and values.

Parts List: ICs, Transistors, Diodes, Passive Components

Parts List: Other Circuitry and Mechanism Components

Other Circuitry Parts List

Lists other electronic components such as connectors, switches, and jacks.

CD Mechanism Parts List

Details parts specific to the CD mechanism, including gears, motors, and covers.

Cabinet Parts List

Lists parts related to the unit's chassis, panels, knobs, and internal supports.

Parts List: Speaker Box and Cabinet Components

Speaker Box Parts List

Lists components for the speaker enclosure, including baffles, screws, and speaker units.

Accessories and Additional Parts List

Accessories and Packing Parts List

Details included accessories, packing materials, and labels.

PWB Assembly and Service Parts List

Lists main PWB assemblies and other service-specific parts.