50PY3DF-UA (CHASSIS:PA73A) - LG TV Service Manual (repair manual). Page 6

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4. Auto Adjustment of RF and Video
Adjustment of RF and video signal
4-1. Adjustment
(1) Connect the Video Signal Generator (Master) to AV1 port
and input the signal.
Test Equipment: MSPG925FA Pattern Generator
(Model: 201(NTSC-M), Pattern: 33(100% color Bar))
At this time, press the Rev button certainly.
[
Because the above pattern can differ by the model, pattern
and rev button for each device, you must check the pattern
first.
(2) Apply the RF signal to the antenna. (Make sure that the
signal is received)
(3) Enter the ‘Ez - Adjust’ by pressing the ADJ on the Service
R/C.
After select the ‘3.Adjust RF and Video’, start the
adjustment by pressing the Right Key(
G
).
When it enters the adjustment mode, the screen is
automatically split as TV 2CH SPLIT as shown at the
below figure.
(4) When the adjustment is over, 'RF Configuration Success’ is
displayed. If the adjustment has errors, 'RF Configuration
Error’ is displayed.
(5) When adjusting the RF signal is completed, it is
automatically switched to the Video mode as shown at the
below figure, and the automatic adjustment for the Video
mode starts.
(6) When the adjustment is over, 'AV Configuration Success’ is
displayed. If the adjustment has errors, 'AV Configuration
Error’ is displayed.
ADJUSTMENT INSTRUCTIONS
<Fig. 2>
<Fig. 3>
<Fig. 4>
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