Sharp SD-AT50H, Service Manual

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SD-AT50H
No. ?????????????
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY .................................................................................................................................................................. 6
ADDITIONAL DESCRIPTION ............................................................................................................................................ 8
ADJUSTMENT ................................................................................................................................................................... 9
DESCRIPTION OF CIRCUIT FOR 1-BIT UNIT ................................................................................................................. 9
TO CHECK AND CANCEL PROTECT CIRCUIT DETECTION LINE .............................................................................. 10
BLOCK DIAGRAM ........................................................................................................................................................... 11
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 20
VOLTAGE ........................................................................................................................................................................ 41
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 42
TYPES OF TRANSISTOR AND LED ............................................................................................................................... 42
WAVEFORMS OF 1-BIT CIRCUIT .................................................................................................................................. 43
FUNCTION TABLE OF IC ................................................................................................................................................ 44
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
1-BIT DIGITAL HOME CINEMA
MODEL
SD-AT50H