32LG3DCH (CHASSIS:LA76B) - LG TV Service Manual (repair manual). Page 10

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5) Finishing the version updating, you have to put out USB

stick and “AC Power” off 

6) After putting “AC Power” on and check updated version on

your TV

(1) Auto RGB Gain/Offset Adjustment

1) Convert to PC in Input-source

I

2

C COMMAND:0xF4(SELECT INPUT) 0x00 0x60(RGB)

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

0x60(RGB), 0x90(HDMI)

2) Signal equipment displays

Output Voltage : 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)

Model : 60   in Pattern Generator
Pattern : 29 in Pattern Generator (MSPG-925 Series)
[gray pattern that left & right is black and center is
white signal (Refer below picture)].

3) Adjust by commanding AUTO_COLOR _ADJUST

(0xF1) 0x00 0x02 instruction.

(2) Confirmation

1) We confirm whether “0xB6” address of EEPROM

“0xA2” is “0xAA” or not.

2) If  “0xB6(RGB)” address of EEPROM “0xB2” isn’t

“0xAA”, we adjust once more.

3) We can confirm the ADC values from “0xB0~0xB5

(RGB)” addresses in a page “0xA2”

* 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”.

(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.

<Adjustment pattern (PC)>

<Adjustment pattern (COMPONENT)>