Flicker Reduction; White Balance Adjustments - Sanyo PLC-EF31 Service Manual

15. Flicker reduction

Input mode
Input signal
Set the image to "Service mode."
Adjust each color for minimum flickers with the Volume + - buttons.
Group No. Screen
200- 17 Display only green light.
200- 18 Display only red light.
200- 19 Display only blue light.

16. White balance adjustments

Input signal
Set the image to "Service mode."
Adjust each item value with the Volume + and - buttons and to obtain better white
balance.
Group No. Lamp mode
930- 0
210- 14 and 16 2 lamp mode
200- 14 and 16 2 lamp mode
930- 1
211- 14 and 16 Lamp-1 of 1 lamp mode
930- 2
212- 14 and 16 Lamp-2 of 1 lamp mode
Note :
Check data value on the screen, and go to (1), (2) or (3).
(1) If the data value appears "11" on the screen, go to (a).
(2) If the data value appears "0" on the screen, go to (b).
(3) If the data value appears "99" on the screen, go to (c).
(a) Go to next white balance adjustment.
(b) Set the data value to "10" and go to next white balance adjustment.
(c) Wait until it is changed to "0". Then set the data value to "10" and
go to next white balance adjustment.
Computer.
1 dot line computer signal
16 step gray scale signal
Input mode
Adjustment value.
See note.
AV Better white balance.
Computer Better white balance.
See note.
AV Better white balance.
See note.
AV Better white balance.
17. Unevenness color correction
If you find the Unevenness color on the screen, please correct it by
using the proper computer and "color shading correction" soft
ware supplied separately.
The soft ware can be ordered as follows:
"Color shading correction"
Service part NO. : 645 051 2308
-42-