LG GCC-4480B Service Manual page 64

Cd-rw/dvd-rom drive
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C. Laser Power Setup (CD Read DAC/VWDC1/VWDC2/DVD Read DAC re-setup)
1. Remove disc on the tray.
2. Click "CD" button on the menu.
3. Measure LD Power with LD Powermeter. Type the result in the displyed message box.
(Caution : wavelength = 780nm)
4. A total power measurement is five times.
5. After the measurement, the result will be displayed.
6. Click "DVD" button
7. Measure LD Power with LD Powermeter.
Type the result in the displyed message box.
(Caution : wavelength = 650nm.)
8. A total power measurement is two times.
9. After the measurement, the result will be displayed.
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