YES
NO
Checking the S-Video
signals
Is there specified voltage
at the EA connector?
Is there S-Video input
signal at pins (71) and (75)
of IC3001?
Check IC3001 and its
peripheral circuits.
Go to "Checking the
power unit".
NO
Check the S-Video
terminal and its peripheral
circuits.
YES
NO
Checking the Video
signals
Is there specified voltage
at the EA connector?
Go to "Checking the power
unit".
YES
NO
Is there Video input signal
at pin (73) of IC3001?
Check the Video terminal
and its peripheral circuits.
Check IC3001 and its
peripheral circuits.
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