LG 42LH90 - Energy Saving Features; Adjusting Energy Saving Levels

LCD DV 42LH90
76
February 2010
Main Board LD1000 Function
Main Board LD1000 Function
Main Board
LD1000 Location
Use LD1000 as a visual aid.
This lets you know the PLL (Phase Lock Loop)
circuit is working correctly in IC1004.
This indicates the Tuner Crystal is Locked to the
Reference frequency in IC1004.
LD1000