View Sharp DX-AT50H (serv.man15) Service Manual online
power cord is plugged again after several seconds ?
is leaking or short then service it if defective.
primary circuit component.
(Q1001, Q1003, T1001, D1001, D1002, D1004,
D1005, D1011, C1003, C1005)
circuit is shorted in each rectifying circuit of
secondary side then service it if defective.
When buzz sound can be heard in the vicinity of power circuit.
( D1008, D1009, D1013, D1030, IC1002, Q1002, Q1004, Q1007, Q1011, Q1014)
side operate normally ?
operate normally ?
(IC1001, IC1006, D1048, D1015)
(IC1001, D1012, D1024)
FP-CLK, FP-STB of IC2001 and CN1001 ?
and installation state normal ?
Pins (44-47, 50, 51) of IC2001 ?
2005-2007), and their periphery circuit.
operation is possible from the remote control unit.
control unit ?
receiver and Pin (23) of CN1001.
when the infrared remote control is activated ?
CN1001 from Pin (1) of receiver ? (Be operated by
SEARCH (-), SEARCH (+), PLAY, STILL/PAUSE,
STOP, POWER and OPEN/CLOSE button.)
the infrared remote control receiver (RM2001) ?
(Q1005, Q1006, D1036, etc.)
(It can be done using the remote control unit.)
the OPEN/CLOSE button is activated on the DVD ?
(Q1005, Q1006, etc.)
[No Disc] indicated. (When the laser beam does not light up.)
Both functions of picture and sound do not operate normally.