LG GCC-4242N Service Manual page 52

Laser operation is abnormal
Execute 'S4LPCHK.exe' and
choose '1. Test ALL'.
Is EEPROM Data valid?
Set λ=780 [nm] of the power
meter.
Is 'Read Power check' OK?
Is 'Write Power check' OK?
Set λ=650 [nm] of the power
meter.
Is 'DVD Laser Check' OK?
OK
54
* Power meter is required.
No
Yes
No
Yes
No
Yes
No
Execute LD power calibration.
A
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