ViewSonic PJ1158-1, Service Manual

Page: 14 / 106

Adjustment procedure 2
(visual inspection)
1. First adjust [MIN] tone [G:].
2. Select [No.2] [G:].
If the background is [G] monochrome, press the
[ENTER] key on the remote control to switch to
solid white.
3. View measurement point [No.2] and [No.3].
Lower the [G] color intensity only of the color
point whose [G] color is more intense than
measurement point [No.1].
4. View measurement point [No.10] and [No.11].
Lower the [G] color intensity only of the color
point whose [G] color is more intense than
measurement point [No.1], and raise the
intensity of the point whose color intensity is
lower than measurement point [No.1].
5. Now adjust the [MIN] tone for colors [R] and [B].
6. View measurement points [No.2], [No.3],
[No.10] and [No.11]. Adjust the [R] and [B] of
each measurement point so that they have the
same color as measurement point [No.1].
Adjustment technique:
First, adjust [B:] of the point whose color is to
be adjusted so that it approximates that of
[No.1]. If [R:] is low at this time, the image will
have cyan cast, in which case [R:] is increased.
On the other hand, if [R:] is excessive, the
image will have a magenta cast, in which case
[R:] is decreased.
Overall, a cyan cast makes it easy to see color
shading.
7. Next, view measurement points [No.4], [No.5],
[No.12], [No.13] and make similar adjustments.
8. Then adjust measurement points [No.6], [No.7],
[No.8], [No.9], [No.14], [No.15], [No.16] and [No.17].
This completes the [MIN] tone adjustments.
9. Make similar adjustments for other tones,
except the [MID-4] and [MID-6] tones, as
described in steps 1 to 8 above.
8
3
16
17
9
11
6
14
2
12
15 13
10
7
4
1
5
8
3
16
17
9
11
14 12
15 13
10
4
1
5
6
2
7
8
3
16
17
9
11
6
2
12
13
14
15
10
7
4
1
5
14 12
15 13
10
4
1
5
6
2
7
8
3
16
17
9
11
17
9
15 13
7
5
3
17
9
11
15 13
10 1
5
6
2
7
8
16
17
9
6
12
13
7
4
5
14 12
10
4
1
6
2
8
3
16
17
9
11 3 11 2 10 1
16 14 12
8 6 4 8 4
16 14 12
3 11 2
14
15
10 1
5
7
15 13
17
9
15 13
7 5
3
17
9
11
6
17
9
6
13
7 5
14 12
10
4 6
2
8
16
3 11 2 10 1
16 14 12
8 6 4 8 4
16 14 12
3 11 2
14
15
10
5 7
15
10 1 2
13 15
5 7
12
4
1
8
17 13
1 3 11
16
9 5
17
9
15 13
7
5
3
17
9
11
6
17
9
6
13
7
5
14 12
10
4 6
2
8
16
3 11 2 1
16 14 12
8 4 8 4
16 14 12
3 2
14
15
10
5
7
15
10 1 2
13
5
7
12
4
1
17 13
1 3
5
11
9
11
8
16
15
10
6
No. 2 deviation range No. 10 deviation range No. 3 deviation range No. 11 deviation range
No. 4 deviation range No. 12 deviation range No. 5 deviation range No. 13 deviation range
No. 6 deviation range No. 7 deviation range No. 8 deviation range No. 9 deviation range
No. 14 deviation range No. 15 deviation range No. 16 deviation range No. 17 deviation range
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