XV-Z90E (serv.man9). Electrical adjustment - Sharp Projector Service Manual (repair manual). Page 2

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

4

Adjustment of
DTV brightness/
contrast

1. Feed 480P 100% Black/White win-

dow pattern signal.

2. Select the following group and sub-

ject.
Group: DTV
Subject: Bright

Contrast
(Process gamma interlock)

1. On the bit-less screen, adjust in the

order of black side Bbright and white
side Contrast.
Adjust the black level so that bright
green bit-less may disappear and
may turn pale green.
Adjust the white level so that bit-less
may appear from black.

5

Adjustment of
DTV tint

1. Select the following group and sub-

ject.
Group: DTV
Subject: Tint

1. Confirm the fixed value.

Tint: 8

6

Adjustment of
DTV color satura-
tion

1. Select the following group and sub-

ject.
Group: DTV
Subject: Color

1. Confirm the fixed value.

Color: 13

7

Adjustment of
DVD brightness/
contrast

1. Feed 480I 10STEP signal (without

setup).

2. Select the following group and sub-

ject.
Group: DVD
Subject: Bright

Contrast
(Process gamma interlock)

1. On the bit-less screen, adjust in the

order of black side Bbright and white
side Contrast.
Adjust the black level so that bright
green bit-less may disappear and
may turn pale green.
Adjust the white level so that bit-less
may appear from black.

11

Adjustment of
Video tint

1. Select the following group and sub-

ject.
Group: VIDEO
Subject: N-Tint

P-Tint
S-Tint

1. Confirm the fixed value.

N-Tint: 8
P-Tint: 8
S-Tint: 8

10

Adjustment of
Video brightness/
contrast

1. Feed NTSC 10STEP signal (with-

out setup).

2. Select the following group and sub-

ject.
Group: VIDEO
Subject: Bright

Contrast
(Process gamma interlock)

1. Adjust the setting value of Bright be-

come the same as DVD-Bright.

2. On the bit-less screen, adjust in the

order of black side Bbright and white
side Contrast.
Adjust the white level so that bit-less
may appear from black.

8

Adjustment of
DVD tint

1. Select the following group and sub-

ject.
Group: DVD
Subject: Tint

1. Confirm the fixed value.

Tint: 8

9

Adjustment of
DVD color satura-
tion

1. Select the following group and sub-

ject.
Group: DVD
Subject: Color

1. Confirm the fixed value.

Color: 10