Sharp PG-C20XU Service Manual page 37

Checking the input signal
setting
Is the input signal setting
as specified?
YES
Is the connector properly
connected?
YES
End
Checking the sync signal
Is there vertical sync signal
at TP8003?
YES
Is there horizontal sync
signal at TP8002?
YES
End
NO
Select the specified signal.
2
NO
Reconnect the connector.
1
NO
Is there horizontal sync
signal at pin (3) of IC3008
connection terminal PWB?
YES
IC3008 or its peripheral
circuit defective. Or
SC3003 in poor contact.
NO
Is there horizontal sync
signal at pin (3) of IC3006
connection terminal PWB?
YES
IC3006, IC3010 or their
peripheral circuit defective.
Or SC3003 in poor
contact.
37
NO
NO
SC3001 or its peripheral
circuit defective.
PG-C20XU
PG-C20XE
AN-Z7T