26LG300C (CHASSIS:LD85A) - LG TV Service Manual (repair manual). Page 11

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1) Push "IN-START" key in service remote control.
2) Select "MODEL SELECT" and push “OK” button.
3) Go to “INCH” and choice proper inch.
4) TV  power turn off and on.
5) Completed Tool option

1) Auto RGB Gain/Offset Adjustment

- Convert to PC in Input-source
- Signal equipment displays

Output Voltage : 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60    in Pattern Generator
Pattern : 65   in Pattern Generator (MSPG-925,
MSPG-1025 Series)

- Adjust by commanding AUTO_COLOR_ADJUST.

2) Confirmation

- We confirm whether “0xAA (RGB)” address of

EEPROM “0xA2” is “0xAA” or not. 

- If “0xAA (RGB)” address of EEPROM “0xA2” isn’t

“0xAA”, we adjust once more

- We can confirm the ADC values from “0xA4~0XA9

(RGB)” addresses in a page “0xA2”

* Manual ADC process using Service Remote control.

After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “

G

” key at “ADC

CALIBRATION : RGB-PC”.

1) Component Gain/Offset Adjustment

- Convert to Component in Input-source
- Signal equipment displays

<MSPG-925 Series>

MODEL : 209   in Pattern Generator (480i Mode)
Pattern : 65   in Pattern Generator
MODEL : 223   in Pattern Generator (1080i Mode)
Pattern : 65   in Pattern Generator

<MSPG-1025 Series>

Model : 321   in Pattern Generator (480i Mode)
Pattern: 65   in Pattern Generator
Model : 327   in Pattern Generator (1080i Mode)
Pattern: 65   in Pattern Generator

- Adjust by commanding AUTO_COLOR_ADJUST.

2) Confirmation

- We confirm whether “0xB3 (480i)/0xBC (1080i)”

address of EEPROM “0xA2” is “0xAA” or not.

- If “0xB3 (480i)/0xBC(1080i)” address of EEPROM

“0xA2” isn’t “0xAA”, we adjust once more.

- We can confirm the ADC values from “0xAD~0XB2

(480i)/0XB6~BB (1080i)” addresses in a page “0xA2”.

* Manual ADC process using Service Remote control.

After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “

G

” key at “ADC

CALIBRATION : COMPONENT”.

480i Mode

1080i Mode

<Fig. 1> Adjustment pattern(PC)

<Fig. 2> Adjustment pattern(COMPONENT)