MD-MT270H
SERVICE MANUAL
SHARP CORPORATION
No. SX299MDMT270H
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
PORTABLE MINIDISC RECORDER
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ............................................................................................................... 2
SPECIFICATIONS ................................................................................................................................................................. 3
NAMES OF PARTS ............................................................................................................................................................... 4
DISASSEMBLY ...................................................................................................................................................................... 5
REMOVING AND REINSTALLING THE MAIN PARTS ......................................................................................................... 6
ADJUSTMENT ........................................................................................................................................................................ 7
MD ERROR MESSAGE DISPLAY CONTENT LIST ........................................................................................................... 21
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 22
TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 22
BLOCK DIAGRAM ............................................................................................................................................................... 23
SCHEMATIC DIAGRAM ...................................................................................................................................................... 24
WIRING SIDE OF P.W.BOARD ........................................................................................................................................... 32
VOLTAGE ............................................................................................................................................................................ 36
WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 37
TROUBLESHOOTING ......................................................................................................................................................... 38
FUNCTION TABLE OF IC .................................................................................................................................................... 41
PARTS GUIDE/EXPLODED VIEW
PACKING OF METHOD (FOR U.K. ONLY)
CONTENTS
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
MODEL
MD-MT270H(S)/(BK)
Summary of Contents for MD-MT270HS/BK
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