Panasonic PT-VX400U

-37-
Electrical Adjustments
3. Auto calibration adjustment [Component]
Input mode Computer 1 (Component)
Input signal 480i component signal
Signal pattern 8 color bar
1. Enter the service mode
2. Select Group “260”, No. “0” and set the data value
to “1”.
The projector begins auto-calibration and then "OK"
will appear on the screen.
Below adjustments are performed when the above auto
calibration is failed.
Gain adjustment [Component]
Input mode Computer 1 (Component)
Input signal 480i component signal
Signal pattern 16-step gray scale
Equipment Oscilloscope
1. Enter the service mode.
2. Adjust the amplitude “a” of waveform at each test point
to be minimum by changing the data value of Group
- No.
Group - No. Test Points
0 - 3 TP35G
(a)
White Level
4. Auto calibration adjustment [Video]
Input mode Video
Input signal Composite video signal
Signal pattern 16-step gray scale
1. Enter the service mode.
2. Select Group “260”, No. “0” and then change data val-
ue from “0” to “1”. After the auto-calibration completed,
“OK” will appear on the screen.
Below adjustment is performed when the above auto
calibration is failed.
5. Common center adjustment
Input mode Computer 1 (RGB)
Input signal XGA computer signal
Signal patterns 50% R, G, B whole signals
1. Enter the service mode
2. Select Group “
100”, No. “92” and change the data
value to “2” to reduce the panel frequency.
3. Change data value to obtain the minimum flicker for
each color on the screen.
Group - No. Adjustment
101
- 1 for green flicker
101 - 0 for red flicker
101 - 2 for blue flicker
4. Select Group “
100”, No. “92” and change the data
value to “0” to reset the panel frequency.
Pedestal adjustment [Component]
Equipment Oscilloscope
1. Enter the service mode.
2. Adjust the black level on each test point to be minimum
by changing the data value of Group - No.
Group - No. Test Points
0 - 0 TP35G
0 - 1 TP35R
0 - 2 TP35B
Black Lebel
Gain adjustment [Vodeo]
Equipment Oscilloscope
1. Enter the service mode.
2. Adjust the amplitude “a” of waveform at each test point
to be minimum by changing the data value of Group
- No.
Group - No. Test Points
20 - 0 TP35G
(a)
White Level