30 _ Troubleshooting
4-4. symPToms, diagnoses and acTions
●
The power does not work.
The problem is in the main PCB
assembly. Please replace it.
Set the input AC voltage.
(Check AC 120/240V)
Neutral
Earth
L2
L1
120V
240V
Directly connect the terminal block.
(Connect in the order of Live 2, Neutral,
Live 1)
Neutral
Earth
L2
L1
Connect the housing.
(Check 120V for AC power)
Check the wire.
Replace the sub PBA.
(Check DC power, signal and key)
Encourage Ring terminals use, but when use Spade terminals, that
confirm whether confirmed finish.
Ring terminals
Spade terminals
Is the input AC
voltage normal?
Yes
No
Is the sub PBA
normal?
Yes
No
Is the terminal block
connection normal?
Yes
No
Is the housing
connection normal?
Yes
No
Is the wire among
the main sub PCBs
in good condition?
Yes
No