Acer AL532, Service Manual

Page: 13 / 32

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