Sanyo PLV-55WHD1 Service Manual page 75

n
Common center adjustment
Input mode Not designated
Input signal 50% whole green, blue or red signal
Picture Auto
High
Lamp mode
1. Enter the service mode.
308
2. Select item no. " ", and change data value from
0 2
" " to " ". (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. "
change data value from "
tion. (Or turn off the projection TV, then this data value
0
will be reset to " ".)
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.
308
The service mode no. "
nal from 120Hz to 60Hz, and flicker can be seen.
308
", and
2 0
" to " " for normal opera-
" can change the FRP sig-
m
Panel luminance adjustment [High]
Equipment luminance meter
Input mode VIDEO_1 [Video] mode
Picture Auto
High
Lamp mode
1. Receive the 100% whole-white signal.
2. Enter the service mode.
3. Measure luminance on the screen with the luminance
A
meter. It is for the reading of luminance meter.
4. Change the signal source to the 50% whole-white
signal.
7
5. Select item no. " " and change data value to make the
reading of luminance meter to be
Item no. Screen
100% white
7 50% white
,
White balance adjustment [High]
Input signal 16-step gray scale signal
Input mode VIDEO_1 [Video] mode
Picture Auto
High
Lamp mode
1. Enter the service mode.
2. Select group/item no. "
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.
-75-
Electrical Adjustments
A x 22±1%
.
Ajustment value
A
(reading value)
A x 22 %
± 1
8 9
" (Blue) or " " (Red), and