MD-MT20/20C/20W
– 1 –
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MT20W ONLY) .............................................................................. 2
SPECIFICATIONS ................................................................................................................................................................. 3
NAMES OF PARTS ............................................................................................................................................................... 4
OPERATION MANUAL .......................................................................................................................................................... 5
QUICK GUIDE (MD-MT20 ONLY) ......................................................................................................................................... 8
DISASSEMBLY .................................................................................................................................................................... 10
REMOVING AND REINSTALLING THE MAIN PARTS ....................................................................................................... 11
ADJUSTMENT ...................................................................................................................................................................... 12
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 25
TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 25
VOLTAGE ............................................................................................................................................................................ 26
BLOCK DIAGRAM ............................................................................................................................................................... 27
SCHEMATIC DIAGRAM ...................................................................................................................................................... 28
WIRING SIDE OF P.W.BOARD ........................................................................................................................................... 31
WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 36
TROUBLE SHOOTING ........................................................................................................................................................ 37
FUNCTION TABLE OF IC .................................................................................................................................................... 40
CIRCUIT DESCRIPTION ..................................................................................................................................................... 42
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (MD-MT20 ONLY)
SERVICE MANUAL
SHARP CORPORATION
No. S6943MDMT20//
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
MD-MT20(S)
MD-MT20C(S)
MD-MT20W(BL)
MD-MT20W(GL)
MD-MT20W(S)
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
Illustration: MD-MT20/20C
Illustration: MD-MT20W
Summary of Contents for MD-MT20
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