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CD-BK250W/CD-BK2600W/CD-BK270W

No. S5136CDBK250W

CONTENTS

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 ...................................................................................................................................................... 7

DISASSEMBLY.................................................................................................................................................................. 9

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12

ADJUSTMENT ................................................................................................................................................................. 13

BLOCK DIAGRAM ........................................................................................................................................................... 17

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ..............................................................................................20

VOLTAGE ........................................................................................................................................................................ 38

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 39

TYPES OF TRANSISTOR AND LED............................................................................................................................... 39

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 40

TROUBLESHOOTING ..................................................................................................................................................... 41

FUNCTION TABLE OF IC................................................................................................................................................ 45

FL DISPLAY..................................................................................................................................................................... 53

REPLACEMENT PARTS LIST/EXPLODED VIEW

• 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

MINI COMPONENT SYSTEM

MODEL CD-BK250W

CD-BK250W Mini Component System consisting of

CD-BK250W (main unit) and CP-BK250 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-BK2600W

CD-BK2600W Mini Component System consisting of

CD-BK2600W (main unit) and CP-BK2600 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-BK270W

CD-BK270W Mini Component System consisting of

CD-BK270W (main unit), CP-BK270 (front speakers) and

GBOXS0070AWM1 (surround speakers).

Illustration: CD-BK250W/CD-BK2600W

Illustration: CD-BK270W

Sharp CD-BK250W - Page 67

Table of Contents

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