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5.10 WHITE BALANCE (MARKET MODE
CHK 3)
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Preparation
1. Receive a colour bar signal with colour "OFF", and operate the TV set for more than 30
minutes.
2. Set the picture menu to "DYNAMIC NORMAL" and the AI to off.
3. Connect an oscilloscope to TPL7 with DC mode.
4. Set the TV set to Market Mode : white balance adjustment (CHK 3).
5. Screen VR : Min.
6. Set the data level of RGB CUT OFF / DRIVE and SUB BRIGHT.
Adjustment of Low Light
1. Adjustment Sub Bright, so that Y = 6.3 ± 1.0 nit.
2. Adjustment R-CUT OFF, so that X = 0.243 ± 0.010 nit.
3. Adjustment G-CUT OFF, so that Y = 0.255 ± 0.010 nit.
Adjustment of Low Light
1. Adjustment Sub Bright, so that Y = 150 nit.
2. Adjustment R-Drive, so that X = 0.260 ± 0.010 nit.
3. Adjustment B-Drive, so that Y = 0.265 ± 0.010 nit.
Adjustment
1. Select G-CUTOFF adjustment mode and collapse vertical scan.
2. Adjust G-CUTOFF control to become the DC=0 V to video level at 180 V as shown in Fig. 1.
Display
R-CUT OFF
G-CUT OFF
B-CUT OFF
R-DRIVE
B-DRIVE
SUB BRIGHT
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Data Level
63
128
63
128
128
63
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