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CD-C451H
SERVICE MANUAL
No. S6840CDC451H/
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
IMPORTANT SERVICE NOTES (U.K. ONLY) ................................................................................................................. 2
SPECIFICATIONS ............................................................................................................................................................ 3
NAMES OF PARTS .......................................................................................................................................................... 4
OPERATION MANUAL..................................................................................................................................................... 6
DISASSEMBLY................................................................................................................................................................. 7
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 10
ADJUSTMENT................................................................................................................................................................ 11
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 18
TYPE OF TRANSISTOR AND LED ................................................................................................................................ 18
BLOCK DIAGRAM .......................................................................................................................................................... 19
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................ 22
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 44
TROUBLESHOOTING (CD CHANGER CONTROL / CD SECTION)............................................................................. 45
FUNCTION TABLE OF IC .............................................................................................................................................. 49
FL DISPLAY.................................................................................................................................................................... 59
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF METHOD (FOR U.K. ONLY)
Manufactured under license from Dolby Laboratories Licens-
ing Corporation.
DOLBY, the double-D symbol and "PRO LOGIC"
are trademarks of Dolby Laboratories Licensing Corporation.
SHARP CORPORATION
CD-C451H mini component system consisting of
CD-C451H mini component system and
CP-C451H Speaker System.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CD-C451H
QSOUND and the QLogo are registered trademarks of
QSound Labs, Inc.
QSound is protected under US Patent Nos. 5,105,462
and 5,208,860 and foreign counterparts.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
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