Electrical Adjustment - Sharp XV-Z90E Service Manual

XV-Z90E
XV-Z91E
No. Adjustment Items
1 Initialization of
EEPROM
2 Adjustment of CW
index
3-1 Adjustment of R
brightness/con-
trast
3-2 Adjustment of G
brightness/con-
trast
3-3 Adjustment of B
brightness/con-
trast

ELECTRICAL ADJUSTMENT

Adjustment Conditions
1. Turn on the power (the lamp lights
up) and warm up the system for 15
minutes.
1. Input the gradation pattern of RGB.
2. Select the following group and sub-
ject.
Group: DLP
Subject: Select CW-INDEX.
1. Select the following group and sub-
ject.
Group: AD
Subject: R-Bright
R-Contrast
2. Feed the window pattern having
91%(0.64Vp-p) R signal and 0%.
(Process gamma interlock)
1. Select the following group and sub-
ject.
Group: AD
Subject: G-Bright
G-Contrast
2. Feed the window pattern having
91%(0.64Vp-p) G signal and 0%.
(Process gamma interlock)
1. Select the following group and sub-
ject.
Group: AD
Subject: B-Bright
B-Contrast
2. Feed the window pattern having
91% (0.64Vp-p) B signal and 0%.
(Process gamma interlock)
Adjustment Procedures
1. Carry out the following setting.
Using the remote controller or press
S2002 to enter the process mode,
and execute SS2 on SS menu.
1. Select subject and make adjustment
so that the lamp gradation patterns
of R, G and B should be smooth with-
out noise.
R
G
B
1. On the bit-less screen, adjust in the
order of black side R-bright and white
side R-contrast.
Adjust the black level so that bright
red bit-less may disappear and may
turn pale red.
Adjust the white level so that red bit-
less may appear from black.
1. On the bit-less screen, adjust in the
order of black side G-bright and white
side G-contrast.
Adjust the black level so that bright
green bit-less may disappear and
may turn pale green.
Adjust the white level so that green
bit-less may appear from black.
1. On the bit-less screen, adjust in the
order of black side B-bright and white
side B-contrast.
Adjust the black level so that bright
blue bit-less may disappear and may
turn pale blue.
Adjust the white level so that blue
bit-less may appear from black.
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