PG-C45X (serv.man10). Electrical adjustment - Sharp Projector Service Manual (repair manual). Page 4

16

Adjustment of
COMPO CB offset
and CR offset

1. Feed the Y-0% brightness, Cb and

Cr 0% white pattern color difference
signal (480I).

2. Select the following group and sub-

ject.
Group: COMPO
Subject: AUTO

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

1. Feed the signal. Using the set's con-

trol switch or the remote controller
button, select the subject AUTO. The
setting will adjust itself.

17

Adjustment of
COMPO white
balance

1. Feed the DTV monoscope pattern

signal.

2. Select the following group and sub-

jects.
Group: DLP
Subjects: C-R1-BLK, C-B1-BLK

1. Using the set's control switch or the

remote controller button, adjust the
settings to have the same white bal-
ance as on the standard monitor.

18

Adjustment of
sRGB white
balance

1. Feed the RGB 50% gray pattern

signal.

2. Select the following group and sub-

jects.
Group: OUTPUT1
Subjects: S-R1-BLK, S-R1-GAIN, S-
G1-BLK, S-G1-GAIN, S-B1-BLK, S-
B1-GAIN

3. Have the BM-5 brightness meter and

the standard white board at hand.

1. Make the S-R1-BLK setting the same

as the R1-BLK one.
Make the S-G1-BLK setting the same
as the R1-BLK one.
Make the S-B1-BLK setting the same
as the R1-BLK one.
Make the S-R1-GAIN setting the
same as the R1-GAIN one.

2. Adjust the S-B1-GAIN and S-G1-

GAIN settings so that the chroma-
ticity on the brightness meter should
be as follows.
x: .313±7/1000
y: .350±10/1000

Teaching intervals:

18

Brightness adjustable direction: Brightness up by increasing the setting (to be checked)

Adjusting points:

Three dimension (to be checked)

Gradation 4 (to be checked)

Gradation 5 (to be checked)

Gradation 6 (to be checked)

Other gradations not to be checked

Adjustable colors:

White adjustable (to be checked)

(2) Color irregularity correction

Conditions setup

Correction procedure settings

Gradation 7:

2. Lower-gradation correction value to be used.

Gradation 6:

0. Correction with correction coefficient.

Gradation 5:

0. Correction with correction coefficient.

Gradation 4:

0. Correction with correction coefficient.

Gradation 3:

1. Upper-gradation correction value to be used.

Gradation 2:

1. Upper-gradation correction value to be used.

Gradation 1:

1. Upper-gradation correction value to be used.

Gradation 0:

1. Upper-gradation correction value to be used.

For the model in question, select the name entered in (2) to start the color irregularity correction. If the
set has its optical characteristics rather different from the standard ones or if the set has some color
irregularity lines missing, do the teaching for that set in particular. Use its specified correction coeffi-
cients in making the adjustment.