LG RHT497H Service Manual page 94

LD CHECK
(Laser operating is abnormal)
Perform 6. Optical power setting
parameter check from "How to use Test tool".
Is ALPC parameters valid?
NO
Perform 5. Optical Power Setting
OFF level
OK
w1SET level & FPD
OK
w2SET level & FPD
OK
w3SET level & FPD
OK
OK
YES
Execute "C.Laser power setup" of
"How to use test tool"
N.G
Check reference voltage.
N.G
E
N.G
F
N.G
G
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