2-9
VPL-FX52/FX52L
2-4. Service Know-How
2-4-1. When the Prism Block is Replaced
1.
Perform the V COM adjustment. (Refer to Section “2-
2. VCOM Adjustment”.)
2.
Write the GAMMA data of the prism block.
3.
Perform the white balance adjustment. (Refer to
Section “2-5. White Balance Adjustment”.)
2-4-2. When the Board is Replaced
When the C Board is Replaced
1.
Install IC3207 of the C board before replacement, into
the new C board.
2.
Enter the Factory Mode.
3.
Perform the V COM adjustment. (Refer to Section “2-
2. VCOM Adjustment”.)
4.
If the white balance is significantly poor, perform the
white balance adjustment. . (Refer to Section “2-5.
White Balance Adjustment”.)
When the QA, QB, or B Board is Replaced
1.
If the white balance is significantly poor, perform the
white balance adjustment. . (Refer to Section “2-5.
White Balance Adjustment”.)
2-5. White Balance Adjustment
Preparation before adjustment
1.
Input the 100 IRE flat field XGA60 signal to the
INPUT-C connector and allow the warm-up of 10
minutes aging at a minimum.
2.
Enter the Service Mode.
Press the keys in the following order.
[ENTER]
→
[ENTER]
→
↑
→
↓
→
[ENTER]
.
The message [Do you want to enter the Service Mode?
Yes :
↑
No :
↓
] appears.
Select [Yes :
↑
].
[Supplementary information: How to Exit the
Service Mode]
Perform the step 2 KEY operation.
The message [Do you want to return to the User Mode?
Yes :
↑
No :
↓
] appears.
Select [Yes :
↑
].
2-5-1. LOW Mode of INPUT-C Computer
1.
Input the 100 IRE flat field XGA60 signal to the
INPUT-C connector, and set the GAIN and BIAS for
the white balance LOW mode to the following values,
then SAVE.
GAIN
BIAS
RED
160
85
GREEN
140
85
BLUE
160
85
