Sanyo PLV-Z4 Service Manual page 57

n
Common Center adjustment
Input mode Computer [RGB(Analog)]
Image mode Powerful
Input signal 1 line dot pattern 720p computer signal
1. Enter the service mode.
2. Select group/item no. "
0 2
value from " " to "
...See Note)
3. Project 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 group/item no. "
and change data value from "
operation.(Or turn off the projector, then this data
0
value will be reset to "
Item no. Screen
3 - 0 Only green color picture
3 - 1 Only blue color picture
3 - 2 Only red color picture
Note:
The FRP signal (common electrode reverse signal)
works at 120Hz, so flicker is invisible for human eyes.
4 - 114
The service mode "
nal from 120Hz to 60Hz, and flicker can be seen.
4 - 114
", and change data
". (Flicker adjustment mode
4 -114
2 0
" to " " for normal
" .)
" can change the FRP sig-
m
Panel Luminance adjustment [PC]
Equipment luminance meter
Input mode Computer [RGB(Analog)]
Image mode Powerful
Input format 720p computer signal
1. Receive the 100% whole-white signal.
2. Enter the service mode.
3. Select group/item no. "
nance 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. Change data value to make the reading of luminance
A x 30
meter to be
,
White Balance adjustment [PC]
Input mode Computer [RGB(Analog)]
Image mode Powerful
Input format 720p computer signal
1. Receive the 50% whole-white signal.
2. Enter the service mode.
3. Select group no. "
and change data values respectively to make a prop-
er white balance.
-57-
Electrical Adjustments
4 - 6
" and measure the lumi-
%
± 2 .
4 7
", item no. " " (Blue) or "
8
" (Red),