LG GWA-4161B Service Manual page 73

D. Laser Inspection (VRDC/VWDC FPD & Level Check)
1. Remove disc on the Tray.
2. Select ALPC/OPC on the menu bar and select LD Test menu, then LD Test window will appear.
3. Click Trigger button, then the result will be displayed with OK or NG separately.
4. Close LD Test window.
[Laser Inspection]
[Laser Power Test Frame]
[Laser Power Test Result]
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