LG GCC-4241N Service Manual page 51

LD control is abnormal (Verify
LD Power)
Execute 'S3LPCHK.exe' and
choose '1. Test ALL'.
Is EEPROM Data valid?
Yes
Set λ=780 [nm] of the power
meter.
Is 'Read Power check' OK?
Yes
Is 'Write Power check' OK?
Yes
Set λ=650 [nm] of the power
meter.
Is 'DVD Laser Check' OK?
OK
No
Execute LD power calibration.
No
Go to "Check Read Power".
No
Go to "Check Write Power".
No
Go to "Check DVD LD Power".
53