White Balance Adjustment - Eiki LC-WB200 Service Manual

Electrical Adjustments
6. Panel Type Check and Setting
* Before setting, you need to check which type of LCD
panel is placed on the projector according to the item
"LCD Panel/Prism Ass�� y removal" in the chapter
"Optical Parts Disassembly".
1. Enter the service mode.
. Panel Type Check
Select Group "290", No. "0". Check the data
value as follows;
Data value: 0 For L-Type of LCD Panel
Data value: 0 For R-Type of LCD panel
If the mounted LCD panel type and set Panel mode
are differ, take the step below.
3. Panel Type Mode Setting
Select Group "290", No. "1" and change data
value from 10 to 0 or 0 depending on your LCD
Panel type. When the data value reaches 0 or 0,
it returns to 10 quickly. The gamma-characteristics
changes according to your selection.
7. Gamma shipment adjustment
Software PROJECTOR SERVICE TOOL v4.0
Use the software to obtain the proper gray scale of the
screen. See the further information of the software in-
struction manual.

8. White balance adjustment

Input mode Computer 1 (Analog PC)
video
Input signal XGA computer signal
Composite video signal
Signal patterns 16-step gray scale
1. Enter the service mode,
. Input PC analog signal. Select Group "104" No. "217"
(Red) or "223" (Blue) and change data values
respectively to make a proper white balance.
Input composite video signal. Select Group "104"
No. "217" (Red) or "223" (Blue) and change data
values respectively to make a proper white balance.
3. Confirm that the same white balance is obtained in
the video and computer mode.
9. Color Shading Correction adjustment
Software PROJECTOR SERVICE TOOL v4.0
Signal pattern 6%, 13%, 30%, 60% whole gray
Use the software to correct the color shading of the
screen. See the further information of the software in-
struction manual.
The color shading correction adjustment for this model
should be performed with the whole-gray patterns speci-
fied as above.
Corresponding to the pull-down menu of the gray level
selector on the software.
Level 0
Level 384
Level 640
Level 103
Relation of level (%) indication and signal pattern
0% : Black
100% : White
10. Keystone Offset adjustment
Input signal no signal
1. Put the projector on a horizontal place with the
adjustable feet being minimum range and then enter
the service mode.
75
. Select Group " ", No. "
0 5
" " to " ".
OK
3. By pressing the
adjustment will start.
4. When it has completed, the "OK" message will
appear on the screen.
5. By pressing any button on the projector or the
remote control, the "OK" message will disappear.
(Data value of Group "
for initial value.)
-34-
: 6%
: 13%
: 30%
: 60%
3
" and set data value from
button, the Keystone Offset
75 3
", No. " " will be back to "
0
"