LG 55LA86 Series Service Manual page 127

Standard Repair Process Detail Technical Manual
Error
Established
D. VCOM Adjustment
2012. 12 .06
symptom
date
LCD TV
Revised
Content Sequence of the Vcom adjustment A28
date
1. Case
■ LCD module change
■ T-Con board change
2. Equipment
■ Service Remote controller
3. Adjust sequence
■ Press the 'adj' key
■ select V-COM
■ As pushing the right or the left button on the remote controller, And find the V-COM value Which is no or minimized the Flicker.
(If there is no flicker at default value, Press the exit key and finish the VCOM adjustment.)
■ Push the OK key to store the value. Then the message "Saving OK" is pop.
■ Press the exit key to finish V-COM adjustment.