Hitachi RAS-25CNH1 Service Manual page 98

YES
LD301 : Blinks 8 times.
Acceleration defective
LD301 : Blinks 7 times.
Thermistor abnormal
NO
Is the power module normal?
YES
NO
Is the micro computer drive circuit
PS-HIC normal?
YES
Is the connector of the thermistor
disconnected?
Be careful not to forget to
re-connect after servicing.
NO
NO
Is the continuity of thermistor
normal?
YES
NO
Is the thermistor circuit normal?
Replace the power module.
Replace defective parts.
Connect the thermistor connector.
Replace the thermistor.
Replace parts in the thermistor
circuit.
Perform continuity check of the
leads and pattern according to the
P.W.B. diagram and circuit dia-
gram.
Perform continuity check of the
leads and pattern according to the
P.W.B. diagram and circuit
diagram.