Sharp CD-BK190V - User Manual

– 1 –
CD-BK1600V/1800V/190V
No. S5041CDBK1600
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION ..................................................................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 6
DISASSEMBLY.................................................................................................................................................................. 8
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 11
ADJUSTMENT ................................................................................................................................................................. 12
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 15
BLOCK DIAGRAM ........................................................................................................................................................... 16
SCHEMATIC DIAGRAM ...................................................................................................................................................20
WIRING SIDE OF P.W.BOARD........................................................................................................................................31
VOLTAGE ........................................................................................................................................................................ 39
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 40
TROUBLESHOOTING ..................................................................................................................................................... 41
FUNCTION TABLE OF IC................................................................................................................................................ 45
FL DISPLAY ......................................................................................................................................................................56
REPLACEMENT PARTS LIST/EXPLODED VIEW
CD-BK190V
• 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.
CD-BK190V Video CD Mini System consisting of
CD-BK190V (main unit), CP-BK190 (front speakers) and
GBOXS0041AWM1 (surround speakers).
SHARP CORPORATION
CD-BK1800V
CD-BK1800V Video CD Mini System consisting of
CD-BK1800V (main unit), CP-BK1800 (front speakers) and
GBOXS0041AWM1 (surround speakers).
Illustration: CD-BK1600V
CD-BK1600V Video CD Mini System consisting of
CD-BK1600V (main unit) and CP-BK1600 (speaker system).
CD-BK1600V
NTSC/PAL
Illustration: CD-BK1800V
Illustration: CD-BK190V
VIDEO CD MINI SYSTEM
MODEL
MODEL
MODEL

Sharp CD-BK190V Specifications

General

Category	Media Converter
Model	CD-BK190V
Brand	Sharp
Cassette Deck	Yes
Frequency Response	20Hz - 20kHz
Type	CD Player
Playable Media	CD, CD-R, CD-RW, cassette
Tuner Bands	FM
Supported Media	CD
Power Supply	AC power

Summary

SHARP SERVICE MANUAL

Model Information

Identifies the CD Mini System models: CD-BK1600V, CD-BK1800V, CD-BK190V.

Service Safety Precautions

Crucial safety measures, including laser handling and voltage selection, for servicing.

Technical Specifications

Detailed performance and physical specifications for all unit and speaker models.

Parts Identification

Identifies front panel controls, display elements, rear panel connectors, and speaker components.

Operation and Maintenance

Operation Manual

Covers remote control functions, microcomputer reset, and basic setup like power and clock.

Disassembly Procedures

Step-by-step instructions for safely disassembling the main unit and its mechanisms.

Component Removal and Reinstallation

Specific guides for removing and reinstalling tape and CD mechanism parts.

Service Adjustments

Procedures for tuner tuning and CD player focus, tracking, and gain adjustments.

Troubleshooting and Diagnostics

CD Error Codes

Lists and explains specific error codes encountered during CD operation.

CD Functionality Troubleshooting

Diagnoses issues like CD not functioning or CD not playing.

Systematic CD Error Checks

Flowcharts for diagnosing focus, tracking, PLL, spin, and audio output errors.

Integrated Circuit (IC) Function Tables

Pinout and function details for key ICs like servo, microcomputer, and audio processors.

Diagrams and Parts Information

Block Diagrams

High-level system architecture diagrams showing major component interconnections.

Schematic Diagrams

Detailed electronic circuit diagrams for in-depth analysis and repair.

Wiring Diagrams

Visual representation of PCB component layouts and wiring connections.

Parts List and Exploded Views

Comprehensive component lists, ordering information, and visual assembly breakdowns.