Operating instructions

9.3. Sub Contrast / G-Limit Adjustment

Preparation

Picture Menu : Dynamic WB-B-G-ST1 : 255

C Temp : Standard High-RGB : 128

AI : ON Low-RGB : 640

P-NR : ON G-Limit : 255

Scan Mode : 100Hz (PAL)

Cut off Adjustment has been adjusted

Adjustment

1. Receive a Cross Hatch pattern.

2. Connect an oscilloscope to TPLG1 on LG-Board.

3. Adjust Sub Contrast so that the waveform A is 150 ± 2V.

4. Before G-Limit Adjustment is attempted, Sub Contrast adjustment must be completed.

5. Adjust G-Limit so that the waveform A is 125 ± 2V.

9.4. Sub Picture Contrast Adjustment

Preparation

Picture Menu : Dynamic

AI : ON

Adjustment

1. Receive a Colour Bar pattern.

2. Connect an oscilloscope to TPLG1 on LG-Board.

3. Increment / Decrement Video gain2 to adjust Sub-Video level B as same as Main video level A.

TX-47P500HM / TX-47P500HQ / TX-47P500HZ / TX-47P500X