PG-A20X. Version 1.5 - Sharp Projector Handy Guide. Page 32

32

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

1

Initialization of EEPROM

1. Turn on the power (the lamp lights
up) and warm up the system for 15
minutes.

1. Make the following settings.
Press S2002 to call the process mode and
execute "SS2" on SS menu.

2

Adjustment of RGB1 black
level signal amplitude

1. Select the following group and
subjects.
Group : AD
Subject : R-Bright
G-Bright
B-Bright
(Process GAMMA interlock)
2. Feed the XGA 16-step signal with
an amplitude level of 50% (0.35 Vp-
p).

1. Watching the screen, adjust the R-, G-
and B-Bright settings so that the second
tone (3% level step) on the black side should
have some pixel dropouts and the bright
colour zone should become just about a half.

2-2

R/G/B Contrast adjustment

1. Select the following group and
subjects.
Group : AD
Subject : R-Contrast
G-Contrast
B-Contrast
(Process GAMMA interlock)
2. Feed the XGA white signal with an
amplitude level of 96% (0.67 Vp-p).

1.Watching the screen, adjust the R-, G- and
B-Contrast settings so that because of some
pixel dropouts, the bright colour zone should
become just about a half.

3

DTV Brightness/
Contrast adjustment

1. Feed a 480P component 10-step
signal with 100% amplitude.
2. Select the following group and
subjects.
Group : DTV
Subject : Bright
Contrast
(Process GAMMA interlock)

1

. Check the setting value.

Contrast (White Level): 2
Bright (Black Level): 12

4

DVD Brightness/
Contrast adjustment

1. Feed a 480PI component 10-step
signal with 100% amplitude.
2. Select the following group and
subjects.
Group : DVD
Subject : Bright
Contrast
(Process GAMMA interlock)

1. Check the setting value.
Contrast (White Level): 1
Bright (Black Level): 13

5

Video Brightness/
Contrast adjustment

1. Feed an NTSC composite video
10-step signal (no set-up) with 100%
amplitude.
2. Select the following group and
subjects.
Group : VIDEO
Subject : Bright
Contrast
(Process GAMMA interlock)

1. Check the setting value.
Contrast (White Level): 0
Bright (Black Level): 13

6

PSIG adjustment

1. Select the following group and
subjects.
Group : OUTPUT2
Subject : PSIG-H
PSIG-L
2. Check the fixed value.
PSIG-H: 65
PSIG-L: 16

1. Feed the XGA signal and adjust to make
the following PSIG waveform. (TP1101,
TP1201 and TP1301)