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6-3
6-2. SYMPTOMS, DIAGNOSES AND ACTIONS
Is the using voltage
normal?
The power does not work.
Set the using voltage.
(Check AC 120/240V)
120V
120V
240V
No
Yes
Is the terminal block
connection normal?
Directly connect the terminal block.
(Connect in the order of Live 2,
Neutral, Live 1)
No
Yes
Is the housing connection
normal?
Connect the housing.
(Check 120V for AC power)
No
Yes
Is the flat wire among
the main sub PCBs in good
condition?
Connect the flat wire.
(Check 12P and 13P of flat wire)
No
Yes
Is the sub PCB normal?
Replace the sub PCB.
(Check DCpower, signal and key)
No
AC 240V
The problem is in the main
PCB assembly.
Please replace it.
Yes
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