Confirm Optical Power Setting Parameter - LG RHT497H Service Manual

1-5. Confirm Optical Power Setting Parameter
LD Test result is ok, but Loader performance is bad.
1. Check ALPC parameter value
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1) Press button to open "Results Display" dialog.
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ALPC Para
ALPC Para
2) Press button.
ALPC Para
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- we can see optical power setting value.
ALPC Para
- write optical Power Setting value to paper.
- Adjust power setting again.
- Compare original parameter to new parameter.
- if parameter value is different, original value is
wrong or optical power may change.
- But pick-up LD test is all ok, just adjust optical
power setting again.
Normal range of ALPC parameter
Optical power value which has been saved in the
EEPROM
4-28
1)
1)
1)
1)
2)
2)
2)
2)