Sharp CP-C1W - User Manual

CD-C1W,CP-C1W
– 1 –
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ................................................................................................................ 2
VOLTAGE SELECTION .......................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ...................................................................................................... 2
SPECIFICATIONS ................................................................................................................................................................. 3
NAMES OF PARTS ............................................................................................................................................................... 4
OPERATION MANUAL .......................................................................................................................................................... 6
DISASSEMBLY...................................................................................................................................................................... 8
REMOVING AND REINSTALLING THE MAIN PARTS ....................................................................................................... 11
ADJUSTMENT ..................................................................................................................................................................... 12
TEST MODE ......................................................................................................................................................................... 14
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 16
TYPES OF TRANSISTOR AND LED.................................................................................................................................... 16
BLOCK DIAGRAM ............................................................................................................................................................... 17
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD ................................................................................................... 20
WAVEFORMS OF CD CIRCUIT .......................................................................................................................................... 42
TROUBLE SHOOTING ........................................................................................................................................................ 43
FUNCTION TABLE OF IC.................................................................................................................................................... 46
FL SEGMENT ...................................................................................................................................................................... 55
PARTS GUIDE/EXPLODED VIEW
CONTENTS
CD-C1W
CP-C1W
SERVICE MANUAL
SHARP CORPORATION
No. YS792CDC1W///
• 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.
● SRS technology Licensed from SRS Labs. SRS technol-
ogy holds the following patents: U.S. Patent No.
4,748,669 and U.S. Patent No. 4,841,572.
● , the SRS Logo (●) and the
are registered trademarks of SRS Labs, Inc. in the United
States.
SOUND RETRIEVAL SYSTEM
● Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
● "DOLBY" and the double-D symbol are trademarks
of Dolby Laboratories Licensing Corporation.

Summary

SAFETY PRECAUTIONS

GENERAL SAFETY WARNINGS

Covers laser safety, electrical precautions, and general handling.

TECHNICAL SPECIFICATIONS

TUNER, CASSETTE, AND AMPLIFIER SPECS

Lists specifications for tuner, cassette deck, and amplifier sections.

CD PLAYER AND SPEAKER SPECS

DISASSEMBLY PROCEDURES

CP-C1 W AND CD-C1 W DISASSEMBLY STEPS

Detailed steps for disassembling both CP-C1W and CD-C1W models.

REMOVING AND REINSTALLING MAIN PARTS

CD MECHANISM AND OPTICAL PICKUP REMOVAL

Procedures for removing the CD mechanism and optical pickup.

TRAY MOTOR AND DISC REMOVAL

ADJUSTMENT PROCEDURES

MECHANISM AND TAPE SECTION ADJUSTMENTS

Covers tape drive, torque, speed, bias, and sensitivity adjustments.

TUNER SECTION ADJUSTMENTS

TUNER BAND AND RF ADJUSTMENTS

Covers AM IF/RF, FM detection, and mute level adjustments.

TEST MODES AND AUTOMATIC ADJUSTMENTS

CD TEST MODE OPERATION

How to set and operate the CD test mode for diagnostics.

AUTOMATIC CD ADJUSTMENT ITEMS

BLOCK DIAGRAMS

CD MECHANISM, SERVO, AND MOTOR CONTROL

Illustrates the CD mechanism, servo ICs, and motor control interconnections.

TUNER, TAPE, AND AUDIO PROCESSING CIRCUITS

Shows signal flow for tuner, tape, and audio processing circuits.

SYSTEM MICROCOMPUTER AND POWER STAGE

Depicts the system microcomputer, FL driver, and power amplifier connections.

CD CIRCUIT WAVEFORMS

FOCUS, SERVO, AND PLAYBACK WAVEFORMS

Displays waveforms for focus, servo, pickup movement, and playback.

TROUBLESHOOTING GUIDE

CD TRAY AND FUNCTIONALITY ISSUES

Troubleshooting steps for CD tray failure and non-working CD function.

CD OPERATION AND PLAYBACK TROUBLESHOOTING

FOCUS, SERVO, AND HF SIGNAL CHECKS

Steps to diagnose issues with focus, servo, DRF, and HF signals.

TRACKING AND SPINDLE SYSTEM CHECKS

Procedures to troubleshoot tracking and spindle motor operations.

CD SYSTEM DIAGNOSIS

TRACKING SERVO AND VCO-PLL SYSTEM ISSUES

Troubleshooting tracking servo and VCO-PLL system for playback issues.

SPINDLE SYSTEM AND AUDIO OUTPUT PROBLEMS

PARTS LIST - SEMICONDUCTORS

INTEGRATED CIRCUITS AND TRANSISTORS

DIODES AND ZENERS

Sharp CP-C1W Specifications