SRS, the SRS Logo ( ) and the Sound Retrieval System
are registered trademarks of SRS Labs, Inc. in the United
States.
SPECIFICATIONS ............................................................................................................................................................. 3
VOLTAGE SELECTION ...................................................................................................................................................... 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 7
DISASSEMBLY .................................................................................................................................................................. 9
ADJUSTMENT ................................................................................................................................................................. 13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 17
TYPES OF TRANSISTOR AND LED ................................................................................................................................ 17
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 18
BLOCK DIAGRAM ........................................................................................................................................................... 19
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 22
TROUBLESHOOTING ..................................................................................................................................................... 46
FUNCTION TABLE OF IC ................................................................................................................................................ 50
FL DISPLAY ..................................................................................................................................................................... 57
REPLACEMENT PARTS LIST/EXPLODED VIEW
SERVICE MANUAL
CONTENTS
CD-C449W
SECTION
KARAOKE CIRCUIT
SHARP CORPORATION
CD-C449W
CD-K449W
CD-C449W mini component system consisting of
CD-C449W mini component system and
CP-C449 speaker system.
CD-K449W mini component system consisting of
CD-K449W mini component system and
CP-C449 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-K449W
This document has been published to be used
for after sales service only.
- 1 -
The contents are subject to change without notice.
CD-C449W/K449W
No.S8875CDC449W/
Page