LG 47LB9DF Service Manual page 15

5. MST3361M-Set Adjustment
5-1. Synopsis
The Component 480i/1080p RGB 1080p adjustment sets the
optimal black level and gain automatically from the analog =>
digital converter, and is the function to correct the RGB
deviation
5-2. Test Equipment
Service R/C, 801GF(802B,802F,802R),
MSPG-925FA, MSPG-1025D Pattern Generator.
(480i, 1080i Horizontal 60Hz Color Bar Pattern output will be
possible and the output level will accurately have to be revised
with 0.7±0.1Vp-p)
(Adjustment pattern : 480i / 1080P 60Hz Pattern)
* Because the above pattern can differ by the model and pattern
for each device, you must check the pattern first.
5-3. Adjustment
(1) Component 1 adjustment method
(A) Enter the Color Bar Pattern of each 480i 60Hz Mode that
can support the input for Component 1, and select
Component 1 as the input mode.
(B) 1 second after receiving the signal, press the ADJ key on
adjustment R/C to enter Ez-Adjust. Select '1. Adjust 480i
Comp1' and press the Vol+ KEY to adjust the Component.
(C) When Component 1 is normally adjusted, you will see the
message saying 'ADC Component1 Success'.
(D) When the adjustment is not done properly, you will see a
message saying 'ADC Component1 480i Fail'. When the
Component is not connected, a message saying
'Component1 Not Connected', when the input format is not
480i, a message saying 'Not Valid Format' and when there
is no input signal, a message saying 'Check Signal Status'
will be displayed for 1 second.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
(2) Component 1, RGB adjustment method
(A) Enter the Color Bar Pattern of each 1080p 60Hz Mode
that can support Component 1 and RGB input, and select
Component 1 as the input mode.
(B) 1 second after receiving the signal, press the ADJ key on
adjustment R/C to enter Ez-Adjust. Select '2. Adjust 1080p
Comp1/RGB' and press the Vol£´KEY to have Component
1 adjusted automatically.
(C) When the adjustment is properly done, you will see a
message saying "ADC Component1 Success". When the
adjustment is not done properly, you will see a message
saying 'ADC Component1 1080P Fail'. When Component
1 adjustment is completed, it is automatically switched to
RGB-DTV Mode to start RGB adjustment. When the
adjustment is normally completed, you will see a message
saying "ADC RGB 1080P Success".
(D) When the adjustment is not done normally, make the
adjustments again after checking the Pattern or
adjustment conditions. The error message is as shown as
(D) of 4.2.3.1.
(E) When the adjustment is completed, press the ADJ key to
exit the adjustment mode.
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