MD-MT15/15C/15H/15W/161E/18H
– 1 –
Page
SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MT15W/15H/18H/161E ONLY) ..................................................... 2
SPECIFICATIONS ................................................................................................................................................................. 3
NAMES OF PARTS ............................................................................................................................................................... 4
OPERATION MANUAL .......................................................................................................................................................... 5
QUICK GUIDE (MD-MT15 ONLY) ......................................................................................................................................... 8
DISASSEMBLY .................................................................................................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 11
TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 11
VOLTAGE ............................................................................................................................................................................ 12
BLOCK DIAGRAM ............................................................................................................................................................... 13
SCHEMATIC DIAGRAM ...................................................................................................................................................... 14
WIRING SIDE OF P.W.BOARD ........................................................................................................................................... 17
WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 22
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (MD-MT15 FOR U.S.A. ONLY)
PACKING METHOD (MD-MT161E ONLY)
SERVICE MANUAL
SHARP CORPORATION
No. S7946MDMT15//
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
MD-MT15(S)
MD-MT15C(S)
MD-MT15H(RD)
MD-MT15H(S)
MD-MT15W(S)
MD-MT161E(S)
MD-MT18H(GR)
• 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-MT15/15C
Illustration: MD-MT15H/15W
Illustration: MD-MT161E/18H (Only printing is different.)
CONTENTS OF MD-MT15/15C/15H/15W/161E/18H
The machine MD-MT15/MT15C/MT15W is a modification of
MD-MT20/MT20C/MT20W the difference is the Top Cabinet.
Its performance and operation are identical with those of MD-
MT20/MT20C/MT20W. For details refer to the service manual
(No.S6943MDMT20//) for MD-MT20/MT20C/MT20W.
MD-MT20/MT20C/MT20W
Page
REMOVING AND REINSTALLING THE MAIN PARTS 11
ADJUSTMENT .............................................................. 12
TROUBLE SHOOTING ................................................. 37
FUNCTION TABLE OF IC ............................................ 40
CIRCUIT DESCRIPTION .............................................. 42
The machine MD-MT15H/MT161E/MT18H is a modification
of MD-MT20H/MT16E the difference is the Top Cabinet. Its
performance and operation are identical with those of MD-
MT20H/MT16E. For details refer to the service manual (No.
S5933MDMT20H/) for MD-MT20H/MT16E.
MD-MT20H/MT16E
Page
REMOVING AND REINSTALLING THE MAIN PARTS .. 9
ADJUSTMENT .............................................................. 10
TROUBLE SHOOTING ................................................. 35
FUNCTION TABLE OF IC ............................................ 38
CIRCUIT DESCRIPTION .............................................. 40
