LG LRM-519, Service Manual

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6. Optical Power Setting Parameter Check
Use when defective happens even though LD test result is normal.
When defective can be found but power test result is OK, You need to check current settings whether they are proper or
not. In this case, Pressing
will display ALPC Parameter Info window and show current optical power settings
recorded in EEPROM(IC302).
Write down these settings on the paper, perform optical power setting and press again, then new optical power set-
tings will appear. Compare these two parameters. If there is a big difference, optical power setting may have been wrong at
first or pick-up optical output may have been changed. If pick-up is normal, problem can be solved by resetting optical
power without replacing pick-up.
In order to remove previous ALPC Parameter from ALPC Parameter Info, press at the bottom of ALPC Parameter
Info window.