Panasonic PT-CW230E Service Manual page 30

Electrical Adjustments
Color index adjustment-1
v
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.
Label on the optical unit
� 9 0 0 0 0 0 0 0 0 2 W 0 7 0 �
3-digit index value " 0 7 0 "
-30-
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.