-30-
Electrical Adjustments
v
Color index adjustment-1
Condition
Dark room
Input mode
Computer 1 (RGB) mode
Image mode
Dynamic
Signal pattern RGBW-Ramp pattern (Internal sig-
nal)
1. Enter the service mode.
2. Select the group "
151
", no. "
21
" and set the data value
to "
1
". The RGBW-Ramp internal pattern is displayed
on the screen.
3. Select the group "
151
", no. "
0
" and set the data value
to the specified index value which is printed on the
label of the optical unit.
4. Check that the proper gradation color image is repro-
duced on the screen.
* Only this adjustment is needed when the optical unit or
main board is replaced.
b
Color index adjustment-2
Condition
Dark room
Input mode
Computer 1 (RGB) mode
Image mode
Dynamic
Signal pattern RGBW-Ramp pattern (Internal sig-
nal)
1. Enter the service mode.
2. Select the group "
151
", no. "
21
" and set the data value
to "
1
". The RGBW-Ramp internal pattern is displayed
on the screen.
3. Select the group "
151
", no. "
0
" and change the data
value to obtain the proper gradation color image is re-
produced on the screen
* Only this adjustment is needed when the color wheel
is replaced.
�
9 0 0 0 0 0 0 0 0 2 W 0 7 0
�
“ 0 7 0 ”
3-digit index value
Label on the optical unit