Common Center Adjustment - Sanyo PLV-Z2000 Service Manual

Electrical Adjustments
9. Component (1080i) input adjustment
Input signal 1080i (Y, Cb, Cr) colour bar
Input mode (Component1)
Input image Natural
1. Enter the service mode.
2. Select group/item no. "
0 1
changed from " " to "
will be done after about 30 sec.
3. After this adjustment completed, "
screen.
Note ;
Include the white 100%, black 0% red 100%, bule 100%
and green 100% in the color bar of the input signal.

10. Common Center adjustment

Input mode Internal signal
Image mode Adjustment
Input signal 50% whole-white pattern
1. Enter the service mode.
103
2. Select group " ".
(Flicker adjustment mode ...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.
Item no. Screen
103 - 13 Only green color picture
103 - 14 Only blue color picture
103 - 12 Only red color picture
Note:
The FRP signal (common electrode reverse signal) works
at 120Hz, so flicker is invisible for human eyes. The service
100 - 42
mode " " can change the FRP signal from 120Hz to
60Hz, and flicker can be seen.
Data value changed from "
Adjust it after the aging of ten minutes.
After this adjustment, data is changed from "
260 - 0
", and the data value
" , then automatic adjustment
OK
" will appere on
0 2
" to " "
2 0
" to " ".
11. Colour Correction
Input signal Internal Signal
Using the proper computer and "Projector Service Tool"
software supplied separately.
After the all steps adusted, check the colour shading.
12. Colour Shading contrast adjustment
Input signal 1080i (RGB)
Image mode PC
Input image Brilliant chinema
Adjust the each raster using the proper computer and
"Projector Service Tool" software supplied separately.
13. Read/Write of LCD panel gamma data
when Main Board replacing
The gamma adjustment data of each LCD panel has been
adjusted preciously to much each LCD panel characteristics
at factory.
When you replace the Main Board, you need to read out
the gamma data stored in the memory IC on the previous
board and write down the gamma data into the memory
IC on the new board. By this way, the projector is enabled
to reproduce the picture which has the properly adjusted
gamma characteristic.
Use "Projector Service Tool" for Read / Write of the gam-
ma data as follows;
Note on WHITE UNIFORMITY Adjustment
If you find the color shading on the screen, please adjust
the white uniformity by using the proper computer and
"Projector Service Tool" software supplied separately. The
software can be ordered as follows;
Projector Service Tool Ver. 4.10
Service Parts No.
-58-
610 337 8787