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Sharp CD-PC671H

Sharp CD-PC671H
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CD-PC671H/651H
No. S5930CDPC671H
CD-PC671H
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
CD-PC671H mini component system consisting of CD-PC671H (main
unit), CP-C671H (front speakers), CP-SW671H (sub woofer),
GBOXS0026AWM1 (center speaker) and GBOXS0027AWM1
(surround speakers).
Illustration: CD-PC671H
CD-PC651H
CD-PC651H mini component system consisting of CD-PC651H (main
unit), CP-C651H (front speakers), GBOXS0026AWM1 (center speaker)
and GBOXS0027AWM1 (surround speakers).
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
IMPORTANT SERVICE NOTES ( FOR U.K. ONLY) ......................................................................................................... 2
SPECIFICATIONS ..............................................................................................................................................................3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 7
DISASSEMBLY.................................................................................................................................................................. 8
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 11
ADJUSTMENT ................................................................................................................................................................. 11
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 18
BLOCK DIAGRAM ........................................................................................................................................................... 19
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................22
VOLTAGE ........................................................................................................................................................................ 46
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 47
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 48
FUNCTION TABLE OF IC................................................................................................................................................ 53
FL DISPLAY......................................................................................................................................................................60
WIRING OF PRIMARILY SUPPLY LEADS (FOR U.K. ONLY).........................................................................................61
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)
DIFFERENCE BETWEEN CD-PC671H AND CD-PC651H
CD-PC671H CD-PC651H
Sub woofer
Illustration: CD-PC651H
• Note for users in U.K.
Recording and playback of any material may require consent
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Prefomers Protection Act 1956, the Preformers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
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Sharp CD-PC671H Specifications

General IconGeneral
BrandSharp
ModelCD-PC671H
CategoryStereo System
LanguageEnglish

Summary

Service Safety Precautions

Laser Pickup Servicing Precautions

Essential safety measures for handling the laser pickup during servicing.

Important Service Notes (U.K. Only)

Specific service guidelines and tests required for units sold in the U.K.

Specifications

General System Specifications

Basic power source, consumption, and dimensional data for the unit.

Amplifier Section Specifications

Details on output power, impedance, and output terminals.

Compact Disc Player Specifications

Information on disc type, signal readout, D/A converter, and frequency response.

Tuner Section Specifications

Frequency range for FM and AM tuning.

Cassette Deck Specifications

Details on frequency response, signal-to-noise ratio, and wow/flutter.

Speaker System Specifications

Technical details for front, center, surround, and subwoofer speakers.

Names of Parts

Front Panel Parts Identification

Identification of buttons, indicators, and controls on the front panel.

Rear Panel Connections Identification

Identification of input/output sockets and terminals on the rear panel.

Speaker Components Identification

Identification of parts for front, center, and surround speakers.

Remote Control Parts Identification

Identification of buttons and sections on the remote control.

Operation Manual

Setting the Clock

Procedure for setting the unit's clock time and display mode.

Resetting the Microcomputer

Instructions for resetting memory contents and system parameters.

Disassembly

Disassembly Precautions and Notes

Safety guidelines and important notes for disassembling the unit.

Removing and Reinstalling Main Parts

CD Mechanism Section

Steps for removing and reinstalling the CD loading motor and pickup.

Adjustments

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

Tuner Section

FM Tuning Adjustments

Procedures and points for FM IF and Mute Level adjustments.

CD Error Code Descriptions

Table listing error codes and their corresponding malfunctions.

Test Mode

Setting the Test Mode

How to enter and operate the CD test mode.

CD Test Mode Functions

Explains functions available in CD test mode, like laser on and servo control.

CD Section

CD Section Automatic Adjustments

Details on automatic adjustment functions for focus, tracking, and RF level.

ASPM Summary Operation

RDS Operation

RDS Information Display Options

How to display Programme Service, PTY, and RT information using the DISPLAY MODE button.

RDS PTY, TP, TA Codes Explained

Descriptions of various Programme Type (PTY) codes, TP, and TA signals.

Dolby Pro Logic Explanation and Evaluation Method

Dolby Pro Logic Outline

Basic explanation of Dolby Pro Logic connection and operation modes.

Dolby Pro Logic Output States

Terminal output states in Bypass, Normal, and Phantom modes.

Dolby Pro Logic Test Tone Output

How to output test tones in Normal and Phantom modes.

Video InputOutput Relation in Pro Logic

How video input signals relate to output in Pro Logic ON states.

Notes on Schematic Diagram

Voltage Checks

IC Voltage Measurement Tables

Tables listing voltage readings for various ICs under specific conditions.

CD Circuit Waveforms Analysis

Waveform Analysis

Visual representations of key waveforms in the CD circuit for troubleshooting.

Troubleshooting Guide

CD Section Issues

Steps for when the CD section does not function, including cleaning.

Turntable Operation Problems

Diagnosis for turntable failing to stop or move correctly.

CD Tray Operation Problems

Steps for when the CD tray fails to open or close.

CD Player Key and Focus Troubleshooting

Troubleshooting for non-responsive keys, focus search, and HF system.

Playback and Tracking Issues

Steps for playback loading, tracking servo, and data reading issues.

Spin and VCO-PLL System Check

Procedures for checking spin system and VCO-PLL system functionality.

Audio Output Problems

Steps for when no sound is emitted despite normal waveforms.

Function Table of ICs

IC1 Servo Amp. Function Table

Pin assignments and functions for the Servo Amplifier IC1.

IC2 ServoSignal Control Function Table

Pin assignments and functions for the Servo/Signal Control IC2.

IC3 Driver IC Function Table

Pin assignments and functions for the Focus/Tracking/Spin/Slide Driver IC3.

IC650651 Op Amp. Function Table

Pin assignments and functions for the Op Amp IC650/651.

IC701 Microcomputer Function Table

Pin assignments and functions for the System Control Microcomputer IC701.

FL Display Pin Connections

Primary Supply Lead Wiring (U.K. Only)

Parts Ordering Information

How to Order Replacement Parts

Information required for ordering replacement parts from Sharp.

Parts Code Explanation

Explanation of codes used for capacitors and resistors.

Parts List

Parts List - Integrated Circuits

List of integrated circuits with part numbers and descriptions.

Parts List - Transistors

List of transistors with part numbers and descriptions.

Parts List - Diodes

List of diodes with part numbers and descriptions.

Parts List - Filters

List of filters with part numbers and descriptions.

Parts List - Transformers

List of transformers with part numbers and descriptions.

Parts List - Coils

List of coils with part numbers and descriptions.

Parts List - Capacitors

List of capacitors with part numbers and descriptions.

Parts List - Resistors

List of resistors with part numbers and descriptions.

Parts List - Other Circuitry Parts

List of other components like switches, connectors, and fuses.

Parts List - Operation Manuals

List of operation manuals available as replacement parts.

Parts List - Speaker Box Components

List of parts for speaker boxes (center, surround, subwoofer).

Parts List - Accessories and Packing

List of accessories and packing materials for the unit.

Packing Method (U.K. Only)

Packing Method - Switch and Knob Positions

Diagram showing the correct position of switches and knobs for packing.

Packing Method - Tape Mechanism

Diagram illustrating how to pack the tape mechanism.

Packing Method - CD Unit

Diagram showing how to pack the main CD unit (CD-PC671H/651H).

Packing Method - Speaker Units

Diagrams for packing surround, center, front, and subwoofer speakers.

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