LG LB68 series Owner's Manual page 256

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EXTERNAL CONTROL DEVICE SETUP
27. Auto Configure (Command: j u)
(Depending on model)
► To adjust picture position and minimize image
shaking automatically. It works only in RGB (PC)
mode.
Transmission [j][u][ ][Set ID][ ][Data][Cr]
Data 01 : To set
Ack [u][ ][Set ID][ ][OK/NG][Data][x]