Sharp DT-200, Service Manual

Page: 21 / 82

21
XV-Z90U
DT-200
No. Adjustment Items Adjustment Conditions Adjustment Procedures
No. Adjustment Items Adjustment Conditions Adjustment Procedures
15 Check and re-
adjustment of the
white balance The adjustment conditions of the item
13 for the DTV input. Check that the white balance is in the
best condition.
In case to re-adjust, carry out DVD in-
put only.
Confirmation
13 Adjustment of
DTV white bal-
ance 1. Feed 480I75% gray signal.
2. Select the following group and sub-
ject.
Group: DLP
Subjects: R-Contrast(R)
B-Contrast(B)
1. Confirm the fixed value.
R-Contrast
B-Contrast
(x=289, y=323)
1. Select the following group and sub-
ject.
Group: VIDEO
Subject: N-Color
P-Color
S-Color
1. Confirm the fixed value.
N-Color: 10
P-Color: 10
S-Color: 10
12 Adjustment of
Video color
saturation
No. Adjustment Items Adjustment Conditions Adjustment Procedures
Adjustment when assembling
14 Adjustment of
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)
1. Carry out adjustment when DLP chip
has been replaced or combination of
chip and formatter has been changed.
2. Rank: B C D E
Setting value: 1 2 3 4
16 Confirmation of
color-related
operation 1. Receive the color bar signal. 1. Select L1 in the process mode.
Check the performance of color and
tint.
17 Confirmation of
picture-related
operation 1. Receive monoscope pattern signal. 1. Select L2 in the process mode.
Check Picture, Brightness and Sharp-
ness.
18 Confirmation of
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.
19 Confirmation of
DVI digital 1. Receive the digital signal. 1. Confirm that the picture is outputted.
20 Confirmation of
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.