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Noise is caused to the moving picture when
the QS drive is set to ON.
Is OSTEMP.AD on the 3rd page of the
process adjustment mode set to 255?
YES
Is the harness connected correctly
between the Thermistor PWB and
Inverter-4 PWB?
YES
Is the board-to-board connected
correctly between the Inverter-3 PWB
and Inverter-4 PWB?
YES
Is the harness connected correctly
between the Monitor PWB and
Inverter-3 PWB?
YES
Is the input voltage on pin (2) of
IC2004 (microprocessor) 5V?
YES
TH2001 thermistor is faulty.
NO
Check IC4701 and
IC4901 and the peripheral
circuitry.
NO
Connect the harness
correctly or replace it.
Connect the board-to-
NO
board securely or replace
it.
NO
Connect the harness
correctly or replace it.
NO
Pin (2) of IC2004
(microprocessor) is faulty.
25
LC-30AA1M
LC-30AA1H
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