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6. Set the data level of SUB BRIGHT, R, G, B-CUTOFF and R, G, B-DRIVE
to the table values.
- R High (R-CUT OFF) - 256
- G High (G-CUT OFF) - 512
- B High (B-CUT OFF) - 256
- R Low (R-DRIVE) - 128
- G Low (G-DRIVE) - 128
- B Low (B-DRIVE) - 128
- SUB RIGHT - 136
Adjustment
1. Select G-CUTOFF adjustment mode and collapse vertical scan.
2. Adjust G-CUTOFF control to become the DC = 0V to video level at 180V
as shown below.
3. Slowly turn the screen control clockwise until a green colour horizontal
line appears on the picture tube. This is the setting point for the screen
control. / Note that do not adjust the G-CUTOFF setting in the following
procedure.
4. Adjust the remained R and B-CUTOFF controls so as to get a white
horizontal line on the screen.
5. Return to full field SCAN by pushing the position 5 key on the remote
control.
6. Adjust the R-Drive and B-Drive controls as to obtain uniform white on
the white bar of the greyscale pattern.
7. Confirm correct B/W rendition and greyscale tracking or repeat
CUTOFF and drive control setup. / Note: / Write down the original
value for each address
20
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