Read Sharp XG-C40XE (serv.man5) Service Manual online
47
XG-C40XU/XE
Checking the OSD circuit and its peripheral circuits
Yes
No
Yes
No
Yes
No
Display OSD on the screen.
Are there signals at pins (56), (58),
(71) and (72) (TL8054,TL8053,TL8052,
TL8051) of IC8048?
(71) and (72) (TL8054,TL8053,TL8052,
TL8051) of IC8048?
Are there signals at pins (12), (14)
thru (17) and (20) of IC8046?
thru (17) and (20) of IC8046?
Are there signals at pins (23) thru
(42) of IC8046?
(42) of IC8046?
IC8048 or its peripheral circuit faulty.
IC8029 or its peripheral circuit faulty.
IC8048 or its peripheral circuit faulty.
IC8046 or its peripheral circuit faulty.
Checking the remote controllor
Yes
No
Use the remote controller. Is there the
signal at pin (59) of P8405?
signal at pin (59) of P8405?
IC8001 circuit faulty.
Output PWB faulty.
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-8
