DOWNLOAD Sharp XV-Z3000 Service Manual ↓ Size: 25.15 MB | Pages: 120 in PDF or view online for FREE

21

Shading

If shading shown in Figure 1 appears on the screen after replacing DMD, turn the adjustment screw of the optical
engine to adjust the lighting area of DMD.
1. Loosen the adjustment lever fixing screw 1. After adjusting the lighting area with the adjustment lever 2, tighten

the adjustment lever fixing screw 1.

When mounting DMD, tighten the 4 screws evenly.

Tightening order: 1→2→3→4
Screw torque: 0.44 ± 0.05 N·m

22

1. Turn on the power (with the

lamp on) and warm up the
set for 15 minutes.

» Make the following settings.

Press S6213 to call the process mode and execute
"SS2" on SS menu.

1. Signal input: Send 256

STEP color bar to INPUT5.
(SVGA60HZ or XGA60HZ)

2. Select the following group

and subject.
Group: ADJUST
            CW/Auto KS
Subject: CW-INDEX.

1. Select the following group

and subjects.
Group : ADJUST/AD
Subject : R-CONT

G-CONT
B-CONT

(Process GAMMA interlock)
2. Feed white signal with the

amplitude level of 96%
(0.67Vpp) to INPUT5.
(SVGA60Hz or XGA60Hz)

1. Measure chromaticity of the 96% white wind pattern

using CA100.

2. On the screen where bit dropouts occur, raise the

values of R/G/B-Contrast. Adjust the values so that
bright red, green, and blue bit dropouts appear on a
black background; and amounts of change in x value
of R and y values of G/B become 100/1000 or more.

3. If adjustment is performed manually watching the

screen, make adjustment so that bright red, green,
and blue bit dropouts appear on more than half of
the screen.

1. Adjust the lamp gradation patterns of RGBW so

that smooth patterns without noise appear.

1. Feed the component 75%

gray signal to INPUT5.

2. Select the following group

and subjects.
Group : ADJUST

  WB

Subject : R-GAIN

B-GAIN

1. Adjust R-GAIN and B-GAIN so that the following

chromaticity vales are obtained using CL200.
X value: 298±5
Y value: 319±5

(Process menu)
1. Select the following group

and subject.
Group: CONFIRM
Subject: MODEL-SELECT

1. Set as below.

XV-Z3000: 1 (default)
DT-500: 0

R

G

B

W

23

1. Feed 10-step signal with

480P component 100%
amplitude.

2. Select the following group

and subjects.
Group : ADJUST/AD
Subject : C-R-OS

C-B-OS

(Process GAMMA interlock)

1. Check the fixed value.

C-R-OS : 257
C-B-OS

: 256

1. Select the following group

and subject.
Group : CONFIRM/DLP
Subject : R-BLK

G-BLK
B-BLK

(Process GAMMA interlock)

1. Check the fixed value.

Fixed value

: 252

1. Feed NTSC 100% wind pat-

tern signal. (Signal with
burst)

2. Select the following group

and subject.
Group : CONFIRM/VIDEO
Subject : V-BRIGHT

1. Check the fixed value.

Fixed value

: 68

1. Feed NTSC 100% wind

pattern signal. (Signal with
burst)

2. Select the following group

and subjects.
Group : CONIRM/

  VIDEO

Subject : V-CONT

1. Check the fixed value.

Fixed value

: 134

1. Feed split color bar.
2. Select the following group

and subject.
Group : CONFIRM/VIDEO
Subject : V-HUE

1. Check the fixed value.

Fixed value

: 128

1. Select the following group

and subject.
Group : CONFIRM/VIDEO
Subject : V-COLOR

1. Check the fixed value.

Fixed value

: 139

1. Make sure the 100% and 95% white as well as the

0% and 5% black gradations are visible.

1. Feed the SMPTE pattern

signal.

24

1. Make the following settings.

Destination

Process

Remote control

adjustment

adjustment

USA

SS4

Factory setting at 4

China

SS6

Factory setting at 6

Others

SS3

Factory setting at 3

1. Connect the unit and a PC

with the RS232C cable.

1. Send a command from the PC, and check it func-

tions correctly.

1. Select the following group.

Group : INFO/VERSION.

1. The model name appears in the MODEL field, and

the firmware version in the VERSION field. Check
that they are correct.
MODEL : DT-500 (MODEL-SELECT=0)
MODEL : XV-Z3000 (MODEL-SELECT=1)

* Writing a software program (before main PWB is mounted)

Use the DLP Composer Lite Ver. 6.0 or higher to download the firmware.

After writing the specified version of firmware to the PWB using the RS232C cable, check the version of the written

firmware.

If no software program is written, all three LEDs light up in the chassis inspection process.

1. Feed the 50% gray signal.
2. Select the following group

and subjects.
Group : CONFIRM/VIDEO
Subject : V-R-OS

V-B-OS

1. V-R-OS is 130.

V-B-OS is 130.

1. Check that images are projected correctly.

1. Heat the thermistor with a

hair dryer.

1. Make sure that the temperature is indicated.

1. Feed the phase check pat-

tern signal.

1. In the VGA, SVGA and XGA modes, make sure the

Clock, Phase, H-Pos and V-Pos settings can be au-
tomatically adjusted.

1. RGB Inputt

VIDEO Input
DTV Input
DVD Input

Check that there is no deviation of white balance with
the monitor.

1. Feed HDMI video signal to

INPUT6.

1. Select OFF from the process mode.

Make sure the off-timer starts with 5 minutes
onscreen and count one minute in one second.
And then indication is 0 minute, the power supply
of the set is cut off.

1. Select the following group

and subjects.
Group : CONFIRM/CHECK
Subject : TEMP-OFF