32LC7D (CHASSIS:LA73E) - LG TV Service Manual (repair manual). Page 12

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ADC-Set adjustment to set the black level and the Gain to
optimum.

Service R/C, 801GF(802V, 802F, 802R) or MSPG925FA
Pattern Generator
(480i/1080i  The Horizontal 100% Color Bar Pattern adjust to
within  0.7±0.1Vp-p)

[ADC adjustment (MSPG-925Fx series) Model No. & Pattern No.]
- Model No.: #209(480i adjustment), #223(1080i adjustment)
- Pattern No.: #65(7ColorBar Pattern)

(1) Select Component1 as the input with  100% Horizontal

Color Bar Pattern(HozTV31Bar) in 480i Mode

(2) After receiving signal for at least 1 second, press the ADJ

Key on the Service R/C to enter the ‘Ez - Adjust’ and select
the ‘2. ADC 480i Comp1’.

Pressing the Enter Key to adjust automatically.  

(3) When the adjustment is over, 'MST3361 Component

Success’ is displayed. If the adjustment has errors,
'MST3361 Configuration Error’ is displayed.

(4) Select Component1 as the input with  100% Horizontal

Color Bar Pattern(HozTV31Bar) in 1080i Mode.

(5) After receiving signal for at least 1 second, press the ADJ

Key on the Service R/C to enter the ‘Ez - Adjust’ and select
the ‘3. ADC 1080i Comp1/RGB’.
Pressing the Enter Key to adjust automatically.  

(6) When the adjustment is over, 'MST3361 Component

Success’ is displayed. If the adjustment has errors,
'MST3361 Configuration Error’ is displayed.

(7) After the Component MST3361 adjustment is over, convert

the RGB-DTV Mode and display Pattern. 
When the adjustment is over, 'MST3361 RGB_DTV
Success’ is displayed. 

(8) Readjust after confirming the case Pattern or adjustment

condition where the adjustment errors. 

(9) After adjustment is complete, exit the adjustment mode by

pressing the ADJ KEY.

<Fig. 2>  Adjustment Mode

<Fig. 3>  Adjustment Pattern: 480i/1080i 60Hz HozTV30 Bar

Pattern