71
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Diagram 9:
Main detection points:
● Is there jumper cap on the main board?
● Is the jumper cap inserted correctly and tightly?
● The jumper is broken?
● The motor is broken?
Malfunction diagnosis process:
Start
Is there jumper cap on the mainboard?
Is the jumper cap inserted correctly
and tightly?
Replace the jumper cap with
the same model
Assemble the jumper
cap with the same model
Insert the jumper
cap tightly
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Replace the mainboard
with the same model
End
Y
Y
Y
Y
Y
N
N
N
N
N
