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Sharp CD-BA3000 User Manual

Sharp CD-BA3000
60 pages
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No. S5044CDBA3000
CONTENTS
Page
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
OPERATION MANUAL ...................................................................................................................................................... 5
DISASSEMBLY.................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 9
ADJUSTMENT ................................................................................................................................................................. 10
BLOCK DIAGRAM ........................................................................................................................................................... 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................16
VOLTAGE ........................................................................................................................................................................ 34
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 35
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 36
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 37
FUNCTION TABLE OF IC................................................................................................................................................ 41
FL DISPLAY ......................................................................................................................................................................47
REPLACEMENT PARTS LIST/EXPLODED VIEW
MINI COMPONENT SYSTEM
MODEL CD-BA3000
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-BA3000 Mini Component System consisting of
CD-BA3000 (main unit), CP-BA3000 (speaker system).
CD-BA3000
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Sharp CD-BA3000 Specifications

General IconGeneral
CD PlayerYes
Playable MediaCD, CD-R/RW
BluetoothNo
USB PortNo
Tuner BandsFM
Cassette DeckYes
Speakers2-Way Speakers

Summary

SPECIFICATIONS

General

General specifications including power source, consumption, dimensions, and weight.

Amplifier Section

Details on output power and terminals.

Compact Disc Player Section

Specifications for the CD player, including type, signal readout, D/A converter, and dynamic range.

Tuner Section

Frequency range for FM and AM tuning.

Cassette Deck Section

Specifications for tape speed, signal/noise ratio, and wow/flutter.

CP-BA3000 Speaker System

Details on speaker type, input power, impedance, dimensions, and weight.

NAMES OF PARTS

Front Panel

Lists and illustrates components and controls on the front panel.

NAMES OF PARTS

Rear Panel

Identifies connectors and the power lead on the rear panel.

Remote Control

Lists buttons and controls of the remote transmitter.

CP-BA3000 Speaker Parts

Identifies speaker components like tweeter, woofer, and terminals.

OPERATION MANUAL

Setting the Clock

Step-by-step instructions for setting the clock on the main unit.

Resetting the Microcomputer

Procedure to reset the microcomputer, erasing all stored data.

Preparation for Use

General notes on usage and setup.

DISASSEMBLY

Disassembly Precautions

Important notes for safe and effective disassembly and reassembly.

Disassembly Steps

Detailed steps for disassembling various parts of the unit.

DISASSEMBLY

CP-BA3000 Speaker Disassembly

Steps for disassembling the speaker unit components.

REMOVING AND REINSTALLING MAIN PARTS

Tape Mechanism Section

Procedures for removing and reinstalling tape mechanism parts.

ADJUSTMENT

CD Mechanism Section

Steps to remove and adjust the CD mechanism.

Mechanism Section Checks

Driving force and torque checks for the mechanism.

Tape Speed Adjustment

Test procedure for tape speed adjustment.

TUNER SECTION ADJUSTMENTS

FM RF Adjustments

Test stages and adjustments for FM RF signal.

AM IF/RF Adjustments

Test stages and adjustments for AM IF and RF signals.

CD SECTION ADJUSTMENTS

Automatic Adjustments

Notes on automatic adjustment functions for the CD system.

Automatically Adjusted Items

Details on automatically adjusted items like offset and gain.

CD Error Codes

Table listing CD error codes and their states.

TEST MODE

Setting the Test Mode

Procedure to set the CD operation test mode.

VOLTAGE MEASUREMENTS

Voltage Tables

Table listing pin numbers and voltage values for various ICs.

SCHEMATIC DIAGRAM NOTES

Resistor Notation

Explains resistor symbols, units, and types used in schematics.

Capacitor Notation

Explains capacitor symbols, units, temperature compensation, and types.

Safety-Critical Parts

Highlights safety-critical parts and the importance of using specified replacements.

Switch Functions List

Lists reference numbers, descriptions, and positions of various switches.

Transistor and LED Types

Illustrates and lists common transistor and LED types used in the unit.

CD CIRCUIT WAVEFORMS

Waveform Analysis

Displays various waveforms from CD circuit signals for analysis.

TROUBLESHOOTING

CD Operation Issues

Steps to troubleshoot when the CD section does not operate.

CD Cleaner Usage

Instructions for using a CD optical pickup lens cleaner disc.

CD Cleaner Precautions

Precautions and warnings regarding the use of the CD cleaner disc.

CD Playback Failure

Troubleshooting steps when a CD cannot be played.

TROUBLESHOOTING

Focus-HF System Check

Detailed steps and checks for the Focus-HF system.

TROUBLESHOOTING

Tracking System Check

Detailed steps and checks for the tracking system.

Spin System Check

Detailed steps and checks for the spin system.

TROUBLESHOOTING

PLL System Check

Steps to check the PLL system for CD playback issues.

Other Sound Issues

Troubleshooting steps for no sound or sound dropouts with normal HF waveform.

FUNCTION TABLE OF IC

IC1 Servo Amp. (LA9235M) Function Table

Function table for the LA9235M servo amplifier IC.

IC2 Servo/Signal Control (LC78641E) Function Table

Function table for the LC78641E servo/signal control IC.

IC2 Pin Functions (1/2)

IC2 Pin Functions (2/2)

IC701 Microcomputer Pin Functions (1/2)

IC3 Driver IC Function Diagram

IC701 Microcomputer Pin Functions (2/2)

IC3 Driver IC Functions

IC601 Audio Processor Block Diagram

FL Display Pin Connections

PARTS ORDERING GUIDE

How to Order Parts

Information required for ordering replacement parts.

Component Parts Code Explanation

Explains codes used for capacitors and resistors in parts lists.

Safety Part Replacement Note

Highlights safety-critical parts and the importance of using specified replacements.

Switch Functions List

Lists reference numbers, descriptions, and positions of various switches.

Transistor and LED Types

Illustrates and lists common transistor and LED types used in the unit.

PARTS LIST - INTEGRATED CIRCUITS

Integrated Circuits

List of integrated circuits with part codes and descriptions.

Transistors

List of transistors with part codes and descriptions.

Diodes

List of diodes with part codes and descriptions.

PARTS LIST - CAPACITORS

Capacitors

List of capacitors with part codes and descriptions.

PARTS LIST - RESISTORS

Resistors

List of resistors with part codes and descriptions.

PARTS LIST - RESISTORS

Resistors

Continuation of resistor list with part codes and descriptions.

Other Circuitry Parts

List of miscellaneous circuitry parts.

PARTS LIST - MISCELLANEOUS

Accessories and Packing Parts

List of accessories and packing materials with part codes.

CD Mechanism Parts

List of CD mechanism parts with codes and descriptions.

Cabinet Parts

List of cabinet parts with codes and descriptions.

PARTS LIST - MISCELLANEOUS

Accessories and Packing Parts

Continuation of accessory list with part codes and descriptions.

PWB Assemblies

Lists various PWB assemblies and their associated parts.

Other Service Part

Lists an optional service part (CD cleaner disc).

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