XR-10XL (serv.man4). Electrical Adjustment - Sharp Projector Service Manual (repair manual). Page 2

XR-10X-L/XR-10S-L/XG-MB50X-L/XR-11XC-L/XR-HB007X-L

4 – 2

2

Adjustment of Component offset 

1. Feed 10-step signal with 480P component 
100% amplitude.
2. Select the following group and subjects.
    Group : CONFIRM/AD
    Subject : C-R-OS
                   C-B-OS
 (Process GAMMA interlock)

1. Check the fixed value.
    C-R-OS : 260
    C-B-OS : 260

3

Adjustment of DLP Brightness

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 : 256

4

Video Contrast adjustment

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 : 124

5

Adjustment of Video Brightness

1. Feed NTSC 100% wind pattern 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

6

Adjustment of Video Tint

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

7

Adjustment of Video color satura-
tion

1. Select the following group and subject.
    Group : CONFIRM/VIDEO
    Subject : V-COLOR

1. Check the fixed value.
    Fixed value : 154

8

RGB tone reproduction adjust-
ment

1. Feed the SMPTE pattern signal.

1. Make sure the 100% and 95% white as well as the 
0% and 5% black gradations are visible.

9

VIDEO white balance adjustment

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 132.
    V-B-OS is 132.

10

White balance checking and 
readjustment

1. RGB Inputt
    sRGB Input
    VIDEO Input
    DTV Input
    DVD Input

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

11

Off-timer performance

1. Select the following group and subjects.
    Group :CONFIRM/CHECK
    Subject : TEMP-OFF

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.

12

Thermistor performance checking 1. Heat the thermistor with a hair dryer.

1. Make sure that the temperature is indicated.

13

Auto sync performance checking

1. Feed the phase check pattern signal.

1. In the VGA, SVGA, XGA and SXGA modes, make 
sure the Clock, Phase, H-Pos and V-Pos settings can 
be automatically adjusted.

14

Monitor out check

1. Send signals to INPUT 1 and INPUT 2.
2. Connect another monitor to the monitor 
out.
3. Connect the audio OUT.

1. Check that the same images as seen on the screen 
appear on the connected monitor and that the sound 
from the sound source connected to the audio OUT is 
heard.

15

RS232C operation check

1. Connect the unit and a PC with the 
RS232C cable.

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

16

Model name and version check

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.