Read Sharp XV-Z90E (serv.man9) Service Manual online
18
XV-Z90E
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
15
Check and re-
adjustment of the
white balance
adjustment of the
white balance
The adjustment conditions of the item
4 for RGB input, the item 8 for the video
input, the item 12 for the DTV input,
and the item 16 for the DVD input
4 for RGB input, the item 8 for the video
input, the item 12 for the DTV input,
and the item 16 for the DVD input
Check that the white balance is in the
best condition.
In case to re-adjust, carry out in the order
of RGB input, video input, DTV input and
DVD input.
best condition.
In case to re-adjust, carry out in the order
of RGB input, video input, DTV input and
DVD input.
Confirmation
13
Adjustment of
DTV white bal-
ance
DTV white bal-
ance
1. Feed 480P75% gray signal.
2. Select the following group and sub-
2. Select the following group and sub-
ject.
Group: DTV
Subjects: R-DRIVE(R)
Group: DTV
Subjects: R-DRIVE(R)
B-DRIVE(B)
1. Confirm the fixed value.
R-DRIVE: 41
B-DRIVE: 41
(x=289, y=323)
B-DRIVE: 41
(x=289, y=323)
1. Select the following group and sub-
ject.
Group: VIDEO
Subject: N-Color
Group: VIDEO
Subject: N-Color
P-Color
S-Color
S-Color
1. Confirm the fixed value.
N-Color: 10
P-Color: 10
S-Color: 10
P-Color: 10
S-Color: 10
12
Adjustment of
Video color
saturation
Video color
saturation
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
Adjustment when assembling
14
Adjustment of
DLP voltage
(Reference)
DLP voltage
(Reference)
1. Read voltage rank of DLP descrip-
tion.
2. Set the switch corresponding to the
rank which has been read. (on the
formatter PWB)
formatter PWB)
1. Carry out adjustment when DLP chip
has been replaced or combination of
chip and formatter has been changed.
chip and formatter has been changed.
2. Rank:
B C D E
Setting value: 1 2 3 4
16
Confirmation of
color-related
operation
color-related
operation
1. Receive the color bar signal.
1. Select L1 in the process mode.
Check the performance of color and
tint.
tint.
17
Confirmation of
picture-related
operation
picture-related
operation
1. Receive monoscope pattern signal.
1. Select L2 in the process mode.
Check Picture, Brightness and Sharp-
ness.
ness.
18
Confirmation of
RGB
RGB
1. Receive the RGB signal.
1. Select L4 on the process mode.
Check Picture, Brightness, Red, Blue,
Clock, Phase, H-POS and V-POS.
Clock, Phase, H-POS and V-POS.
19
Confirmation of
DVI digital
DVI digital
1. Receive the digital signal.
1. Confirm that the picture is outputted.
20
Confirmation of
off-timer operation
off-timer operation
1. Select OFF in the process mode.
Confirm that the off-timer starts with
5-minute display, counts 1 minute for
1 second, and turns off when 0 minute
is displayed.
5-minute display, counts 1 minute for
1 second, and turns off when 0 minute
is displayed.
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