37
NO
YES
NO
YES
NO
YES
NO
An only horizontal line appears
Investigate D411,R452 and a
peripheral circuit.
Screen display doesn't appear
The wave form of the 62nd
pin, the 63rd pin, the 64th
pin of IC1001 normal?
Investigate the circuit of IC601
from IC1001.
The 6th pin of IC401
does it exist DC25V?
Investigate the IC601 and the
peripheral circuit.
Investigate IC401,CP401 and
the peripheral circuit.
Investigate IC1001 and the
peripheral circuit.
YES
Investigate IC601 and the
peripheral circuit.
Is the waveform of the
1st pin of IC401 normal?
The wave form of the 14th
pin, 15th pin and 16th pin
of IC601 normal?