55LW9800-CA (CHASSIS:LC12D) - LG TV Service Manual (repair manual). Page 17

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5. Manual Adjustment 
 
5.1 ADC Adjustment 
 
5.1.1 Overview 
ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device 
and to compensate RGB deviation. 
 
 
                                                   
    LG Electronics
 
5.1.2 Equipment & Condition 
1) Adjust Remocon 
2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator 
   - Resolution: 480i, 720*480
 MSPG-925FA Î Model: 209, Pattern: 65) - 480i
 
1080p, 1920*1080
 (MSPG-925FA Î Model: 225, Pattern: 65) - 1080p   
      - Pattern : Horizontal 100% Color Bar Pattern 
      - Pattern level: 0.7±0.1 Vp-p 
   - Image 
 
3)    Must use standard cable 
 
 
5.1.3 Adjust method 
 
5.1.3.1 ADC 480i, 1080p Comp1 
1) Check connected condition of Comp1 cable to the equipment 
2) Give a 480i1080p ModeHorizontal 100% Color Bar Pattern to Comp1. 
   
(MSPG-925FA Î Model: 209, Pattern: 65) - 480i 
(MSPG-925FA Î Model: 225, Pattern: 65) - 1080p   
3) Change input mode as Component1 and picture mode as “Standard” 
4) Press the In-start Key on the ADJ remote after at least 1 min of signal reception. Then, 
select 7. External ADC -> 1. COMP 1080p on the menu. Press enter key. The adjustment will 
start automatically. 
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