Service manual

41
PG-M20S
PG-M20X
Checking of Sync Signal
Is there the vertical sync signal at
pin (11) of IC8363?
Is there the horizontal sync signal
at pin (5) of IC8363?
Is there the vertical sync signal at
TL8131?
Is the signal generator
(input source) appropriate?
Are both the vertical and horizontal
signals in appropriate timing?
Is there the horizontal sync signal
at TL8130?
The sync signal is normal.
End of checking.
Yes
No
Make confirmation of input signal
setting.
No
Yes
Yes
Yes
Yes
Yes
No
IC8330, IC8331 or its periphery
is defective.
No
IC8363 is defective.
No
Set the signal source appropriately.
No
2
IC8330, IC8331 or its periphery
is defective.
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