User Manual

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Electrical Adjustments
Input mode Not designated
Input signal 50% whole green, blue or red signal
Picture Auto
Lamp mode High
1. Enter the service mode.
2. Select item no. "308", and change data value from
"0" to "2". (Flicker adjustment mode ...see Note)
3. Receive 50% whole green, blue or red signal and pro-
ject only one color component to the screen.
4. Change data value to obtain the minimum flicker for
each color on the screen.
5. After this adjustment, select item no. "308", and
change data value from "2" to "0" for normal opera-
tion. (Or turn off the projection TV, then this data value
will be reset to "0".)
Item no. Screen
4 Only green color picture
5 Only blue color picture
6 Only red color picture
Note:
The FRP signal (common electrode reverse signal)
works at 120Hz, so flicker is invisible for human eyes.
The service mode no. "308" can change the FRP sig-
nal from 120Hz to 60Hz, and flicker can be seen.
n Common center adjustment
Input signal 16-step gray scale signal
Input mode VIDEO_1 [Video] mode
Picture Auto
Lamp mode High
1. Enter the service mode.
2. Select group/item no. “8”(Blue) or “9”(Red), and
change data values respectively to make a proper
white balance.
Note:
If the luminance meter is not equipped, you can take
another method instead as follows;
1. When the main board is replaced, the data value at
"7/8/9" of the previous main board should be copied
manually.
2. If the main board is not replaced, you need not re-
adjust these items.
, White balance adjustment [High]
Equipment luminance meter
Input mode VIDEO_1 [Video] mode
Picture Auto
Lamp mode High
1. Receive the 100% whole-white signal.
2. Enter the service mode.
3. Measure luminance on the screen with the luminance
meter. It is A for the reading of luminance meter.
4. Change the signal source to the 50% whole-white
signal.
5. Select item no. “7” and change data value to make the
reading of luminance meter to be A x 22±1%.
Item no. Screen Ajustment value
100% white A (reading value)
7 50% white A x 22 ±1%
m Panel luminance adjustment [High]