Focus Adjustment; Screen Adjustment - ViewSonic E50C Service Manual

Alignment and Adjustments

4-4 FOCUS Adjustment

1. Input a black and white signal.
2. Adjust the tuning control for the clearest picture.
3. Adjust the FOCUS control for well defined scanning lines in the center area of the screen.

4-5 SCREEN Adjustment

1. Input Toshiba Pattern
2. Enter "Service Mode".(Refer to "4-8-1 Service Mode")
3. Select "G2-Adjust".
4. Set the values as below.
Table 1. Screen Adjustment Table
No INCH / CRT
1
14" / SDI
2 15PF / SDI
3 21" 1.7R / SDI
20V 10.0R/SDI
4
21PF / TSB
5
6
21PF / LG
7 21PF / SDI
8
25PF / SDI
9
27V 1.3R / SDI
10
27V 1.0R/SDI
11
25V 1.0R/SDI
12
23V 1.3R/SDI
5. Turn the SCREEN VR until "MRCR G B" and "MRWDG" are green and those value are about 100.
(The incorrect SCREEN Voltage may result that "MRCR G B" and "MRWDG" should be red)
4-2
IBRM
WDRV
205
35
220
35
220
35
205
35
220
35
230 35
35
220
210 35
35
210
35
210
210 35
35
205
COLR G B
CDL
(Smallest Value)
100 100
180 100
180 100
115
120
180
65
230 65
210 65
160 120
170
150
150
180
150
180
120
140
REGION
Normal
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