22LF10 (CHASSIS:LA85C) - LG TV Service Manual (repair manual). Page 9

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(1) Component Gain/Offset Adjustment

1) Convert to Component in Input-source

I

2

C command : 0xF4(Select input) 0x00 0x40(Component)

cf. 0x10(TV), 0x20(AV), 0x40(COMPONENT),

0x60(RGB), 0x90(HDMI)

2) Signal equipment displays

Impress Resolution  480i
MODEL : 209    in Pattern Generator(480i Mode)
PATTERN : 08 in Pattern Generator(MSPG-925 Series)

3) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)

0x00 0x02 instruction.

4) Signal equipment display

-Impress Resolution : 1080i
- MODEL: 223    in Pattern Generator(1080i Mode)
- PATTERN: 08  in Pattern generator(MAPG-925 series)

5) Adjust by commanding AUTO_COLOR ADJUST(0xF1)

0x00  0x02 instruction.

* Manual ADC process using Service Remote control. After

enter Service Mode by pushing “ADJ” key, execute “Auto-
adjust” by pushing “

G

” key at “0. ADC CALIBRATION”.

(2) Confirmation

1) We confirm whether “0xBF(480i)/0xC8(1080i)” address

of EEPROM “0xA2” is “0xAA” or not.

2) If “0xBF(480i)/0xC8(1080i)” address of EEPROM “0xA2”

isn’t “0xAA”, we adjust once more.

3) We can confirm the ADC values from “0xB9~0xBE(480i)/

0xC2~(1080i)” addresses in a page “0xA2”.

* Manual ADC Confirmation using Service Remocon. After

enter Service Mode by pushing “INSTART” key.

- Check Input and Signal items. (cf. work instructions)

1) TV
2) AV (CVBS/ S-Video)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In and H/P Out
* Display and Sound check is executed by Remote control.

1) Heat-run above 30 minutes in RF no signal.
2) 15 Pin D-sub jack is connected to the auto W/B equipment.

1) Set Input to RGB.
2) Set Temperature : Cool
3) Adjust x=0.285±0.005, y=0.293±0.005 (9300ºK±1000ºK) or

not.

1) Set Input to RGB.
2) Set Temperature : Medium
3) Adjust x=0.295±0.005, y=0.305±0.005 (8000ºK±1000ºK) or

not.

1) Set Input to RGB.
2) Set Temperature : Warm
3) Adjust x=0.313±0.005, y=0.329±0.005 (8000ºK±1000ºK) or

not.

* Manual ADC Confirmation using Service Remocon. After

enter Service Mode by pushing “INSTART” key.

* Adjust “R/G/B - GAIN” by pushing “

F

”, “

G

” key at “Cool”

* Adjust “R/G/B - GAIN” by pushing “

F

”, “

G

” key at “Medium”

* Adjust “R/G/B - GAIN” by pushing “

F

”, “

G

” key at “Warm”

<Adjustment pattern (COMPONENT)>