47LB9DF (CHASSIS:LB75A) - LG TV Service Manual (repair manual). Page 18

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6-5-2. AV NTSC adjustment method
(A) Connect the Video Signal Generator (Master) to the AV
input terminal as AV output. At this time, If you enter the
input pattern, at this time, as Model: 201(NTSC) and
Pattern: 33 (100% color Bar), the following screen will be
displayed 
< Model : 201(NTSC) , Pattern : 33(100% color Bar) >
* Because the top pattern can differ due to the gap of the model
and pattern depending on the used device, it must be checked.
(B) Press the ADJ KEY on the adjustment to enter 'EZ-
ADJUST'. Select '4. Adjust AV_NTSC' and press the right
KEY (
) to enter the adjustment mode.
(C) When the automatic adjustment is completed, you will see
a message saying 'AV-NTSC Configuration Success'. If
the adjustment fails, you will see a message saying 'AV-
NTSC Configuration Fail'
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