Sharp PG-C45X Service Manual page 46

PG-C45X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
6
Check the clock signal of IC8015
by FL8114.
Is the clock signal normal?
Yes
Go to "Checking of Video Sync
Signal".
IC8025 or its periphery is defective.
Checking of Video Sync Signal
Measure the signal at pin (10) of
IC8363 on the oscilloscope.
(Checking of vertical sync signal)
Is the vertical sync signal normal?
Yes
Measure the signal at pin (6) of
IC8363 on the oscilloscope.
(Checking of horizontal sync signal)
Is the horizontal sync signal
normal?
Yes
7
No
IC8015 is defective.
No
No
Go to "Confirmation of Input
Signal Setting".
46