Sharp CD-DD4500 Service Manual
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CD-DD4500
No. S7144CDDD4500
CONTENTS
Page
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)....................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
OPERATION MANUAL ...................................................................................................................................................... 6
DISASSEMBLY ................................................................................................................................................................ 12
REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 15
ADJUSTMENT ................................................................................................................................................................. 17
BLOCK DIAGRAM ........................................................................................................................................................... 21
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 24
VOLTAGE ........................................................................................................................................................................ 48
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 49
TYPES OF TRANSISTOR AND LED................................................................................................................................49
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 50
TROUBLESHOOTING ..................................................................................................................................................... 51
FUNCTION TABLE OF IC................................................................................................................................................ 55
FL DISPLAY ...................................................................................................................................................................... 68
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
MINI COMPONENT SYSTEM
MODEL CD-DD4500
• 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-DD4500 Mini Component System consisting of
CD-DD4500 (main unit), CP-DD4500 (Front), center
(GBOXS0064AWM1), surround (R) (GBOXS2008AWM1) and
surround (L) (GBOXS4008AWM1) speaker system.
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.
Confidential unpublished works. © 1992-1997 Dolby Laboratories. All rights reserved.