57
4. Troubleshooting
YES
NO
YES
YES
YES
NO
NO
Low Voltage Error ( )
Is the sub wire sequence matched
with PCB schematic?
Connect the sub wire.
Replace the sub wire.
S/W Error
Is the sub wire connected?
(
from Assy PCB Parts to Assy Touch PCB)
Assy PCB Parts has defect.
Replace the Assy PCB Parts .
Replace the Assy PCB Parts.
Perform the operation again and check
if it is working properly.
After Power -> On, does
the symptom continue?
NO
Is the SMPS's DC line has some
shorted circuit or opened circuit?
4-1-8
