4-13
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LD CHECK
(Laser operating is abnormal)
Execute “C.Laser power setup” of
“How to use test tool”
Check reference voltage.
NO
YES
Is ALPC parameters valid?
Perform 6. Optical power setting
parameter check from “How to use Test tool”.
OK
Perform 5. Optical Power Setting
N.G
OFF level
OK
N.G
W1SET level & FPD
OK
N.G
W2SET level & FPD
OK
N.G
W3SET level & FPD
OK
E
F
G