Sharp Notevision XG-C58X, Service Manual

Page: 40 / 172

40
XG-C58X
XG-C68X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the RGB signal.
Are the RGB signals outputted from
pin(16), (18) and (20) of IC3101?
Are their signals outputted from
pins(2), (6) and (10) of P3102?
Are their signals inputted into
pins(1), (5) and (25) of IC2401?
Are their signals inputted into
pins(54), (58) and (62) of P8002?
Are their signals outputted from
pin(45)-(54), pins(57)-(66) and
pins(69)-(78) of P8001?
Are their signals inputted into
IC1101, IC1201, IC1301 and
IC1401?
Are their signals inputted into
SC1101, SC1201 and SC1301?
Yes
Check the connection of LCD
panels
And when video signal and OSD
are also not displaied, replace the
LCD panels.
Check IC3101 and its peripheral
circuits.
Check SC3102, P3102 and
their peripheral circuits.
Check Q2419, Q2420 and their
peripheral circuits.
Check IC2401, Q2401, Q2402 and
Q2403 and their peripheral circuits.
Go to "Checking the PC I/F unit".
Check IC1101, IC1201, IC1301
and IC1401 and their peripheral
circuits.