Read Sharp XG-NV4SE (serv.man5) Service Manual online
44
XG-NV4SE/SM
XG-NV40SA
XG-NV40SA
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-6
Checking the OSD circuit and its peripheral circuits
Yes
No
Are there signals at pins (13) thru(17)
of SC1404 connector?
of SC1404 connector?
LCP circuitry faulty.
Yes
No
Are there signals at pins (186) and
(187) of IC8029?
(187) of IC8029?
IC8025 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (1) and (2) of
IC8037?
IC8037?
IC8029 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (71), (74)
thru (79) of IC8025?
thru (79) of IC8025?
IC8037 or its peripheral circuit faulty.
IC8036 or its peripheral circuit faulty.
Checking the remote control
Yes
No
Run the remote control. Are there
signals at pins (17) and (18) of
SC1404 connector?
signals at pins (17) and (18) of
SC1404 connector?
LCD circuitry faulty.
IC8001 or its peripheral circuit faulty.
