Acer G225HQ Service Manual page 53

4 Check LCD Module
No Picture No Picture
Lam p connector OK ?
YES YES
Lam p wire
OK
?
NO NO
LCD m odule fail LCD m odule fail
To display To display
im age im age
NO NO
Bad Connection Bad Connection
or connector, or connector,
YES YES
Inverter board
failed
LCM failed
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W hite Screen W hite Screen
Connection between
NO NO
LVDS cable and
LCM connector
OK ?
YES YES
Connection between
NO NO
LVDS cable and
LVDS connector
OK?
YES YES
NO NO
Is U7 5V? Is Q6 5V?
YES YES
Bad Connection Bad Connection
or connector, or connector,
LVDS cable LVDS cable
Bad Connection Bad Connection
or connector, or connector,
LVDS cable LVDS cable
Check U7
Check Q6