Sharp QT-CD121 Service Manual
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Brand: Sharp
Category: Cd portable system , Receiver
Type: Service manual
Model: Sharp QT-CD111 , Sharp QT-CD111C , Sharp QT-CD121
Pages: 32
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QT-CD121
– 1 –
CONTENTS
Page
IMPORTANT SERVICE NOTES ........................................................................................................................................ 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
REMOTE CONTROL ......................................................................................................................................................... 3
DISASSEMBLY .................................................................................................................................................................. 4
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 5
ADJUSTMENT ................................................................................................................................................................... 6
BLOCK DIAGRAM ............................................................................................................................................................. 8
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
TYPES OF TRANSISTOR ............................................................................................................................................... 16
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 17
TROUBLESHOOTING ..................................................................................................................................................... 18
FUNCTION TABLE OF IC................................................................................................................................................ 21
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified should
be used.
QT-CD121
SERVICE MANUAL
SHARP CORPORATION
No. S5831QTCD121/
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.