Sony VPH-G90E Installation Manual page 127

Adjusting the white level (GAIN adjustment)
1
Reset the CONTRAST level to 80 and BRIGHT level to 50.
For details, see "Adjusting the Picture Quality" on page 129
2
Press the W/B GAIN key.
When the GAIN adjustment is followed by the BIAS adjustment, the
external signal appears automatically.
When you start with the GAIN adjustment, the stair step pattern
appears. Press the PATTERN key repeatedly to display the external
signal.
3
Press the ADJ R, G or B key to select the color to be adjusted.
When selecting the color, pay attention to the white part of the picture
displayed on the screen and note which color stands out compared to
that of another display.
4
Press the B or b key so that the white part in the picture on the screen
looks the same as that of the display.
If the brightness does not look the same as that of the display, adjust
the other colors by pressing the ADJ R, G or B key and the B or b key.
5
Press the MEMORY key to save the adjustment data.
Adjusting the gray level (GAMMA adjustment)
The adjustment can be performed only when COLOR TEMP is set to
CUSTOM.
1
Set the projector to the expert mode.
For entering into the expert mode, see "Expert mode" on page 54
2
Reset the CONTRAST level to 80 and BRIGHT level to 50.
For details, see "Adjusting the Picture Quality" on page 129
3
Press the W/B BIAS and GAIN keys simultaneously.
The stair step pattern appears. Press the PATTERN key repeatedly to
display the external signal.
4
Press the ADJ R, G or B key to select the color to be adjusted.
When selecting the color, pay attention to the gray part of the picture
displayed on the screen and note which color stands out compared to
that of another display.
5
Press the B or b key so that the gray part in the picture on the screen
looks the same as that of the display.
If the birghtness does not look the same as that of the display, adjust
the other colors by pressing the ADJ R, G or B key and the B or b key.
6
Press the MEMORY key to save the adjustment data.
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127
Adjustments (GB)