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No Display
( Black )
?
LED ON
YES
Push the power
switch
ON/OFF
LED Color
change ?
NO
Check main
board U2/Pin2
Hi / Lo under
push power
sw?
NO
A
G. TROUBLE SHOOTING HINTS
NO
YES
Check the
YES
To Step 2
F1(Fuse) of inverter
Power
adapter ?
YES
Back light
ON?
NO
/Pin1
CN1
of Inverter
+12V ?
YES
NO
Check
B
NO
Change
adapter
YES
To Step 2
High Voltage !
Make sure the
NO
connection of
Inverter is fine
Display ?
YES
OK !
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