Sharp PG-MB56X Service Manual page 37

RGB and component
signal check
Send component signal or
RGB signal of 1080i (or
720P) from INPUT 1 or
INPUT 2. Select INPUT 1
or INPUT 2 using keys on
the main unit or the remote
control.
YES
Is image displayed
normally?
NO
Are picture signals sent to
TL3201, TL3204, and
TL3205?
YES
Is 3.3V applied to TL1792?
YES
Is 3.3V applied to TL1762?
YES
Check IC3201 and
peripheral circuits.
PG-MB56X/PG-MB66X/XG-MB55X-L/XG-MB65X-L/XG-MB67X-L
YES
End
Check IC3002 and the
NO
peripheral circuits (check
IC3052 for INPUT 2).
NO
Check IC1792 and
peripheral circuits.
NO
Check IC1763 and
peripheral circuits.
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