Electrical Adjustment - Sharp XV-Z200U/E Service Manual

No. Adjusting point
1 Initialization of
EEPROM
2 Adjustment of
CW index
3-1 R-Bright / R-
Contrast
(Manual or auto
adjustment)
3-2 G-Bright / G-
Contrast
(Manual or auto
adjustment)

ELECTRICAL ADJUSTMENT

Adjusting conditions
1. Turn on the power (the
lamp lights up) and warm
up the system for 15 min-
utes.
1. Input the gradation pat-
tern of RGB.
(SVGA60Hz or XGA)
2. S e l e c t t h e fo l l ow i n g
group and subject.
Group: DLP
Subject: Select INDEX
DELAY.
1. Group: AD
Subject: R-BRIGHT
(Black level)
R-CONTRAST
(White level)
2. Feed the window pattern
signal containing 91%
(0.64Vp-p) R signal and
0% level.
(Process/Gamma interac-
tion)
(SVGA or XGA)
Input 2 RGB input
1. Group: AD
Subject: G-BRIGHT
(Black level)
G-CONTRAST
(White level)
2. Feed the window pattern
signal containing 91%
(0.64Vp-p) G signal and
0% level.
(Process/Gamma interac-
tion)
(SVGA or XGA)
Input 2 RGB input
Adjusting procedure
1. Carry out the following setting.
Using the remote controller or press S2002 to
enter the process mode, and execute SS2 on SS
menu.
1. Select subject and make adjustment so that the
lamp gradation patterns of R, G and B should be
smooth without noise.
R
G
B
1. Observe the 0% window pattern.
2. On the screen with missing bits (red bright spot
appearing at the center of the screen), adjust
the R-Bright setting until the all-black screen
becomes bit-less for the first time.
3. Observe the 91% window pattern.
4. On the screen with missing bits, adjust the R-
Contrast setting until the all-black screen becomes
bit-less for the first time.
1. Observe the 0% window pattern.
2. On the screen with missing bits, adjust the G-
Bright setting until the all-black screen becomes
bit-less for the first time.
3. Observe the 91% window pattern.
4. On the screen with missing bits, adjust the G-
Contrast setting until the all-black screen becomes
bit-less for the first time.
23
XV-Z200U/E, XV-Z201E
DT-300