LL-T15A1 (serv.man7). Chapter 1 2 - Sharp Monitor Service Manual (repair manual). Page 8

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·
If your computer’s display mode is set to 65K colors, you
may see the different color levels in each color pattern or
the gray scale may look colored. (This is due to the specifi-
cation of the input signal and is not a malfunction.)
3-2. Adjusting the backlight
The backlight brightness can be set to change automatically for use in
different surroundings. (Automatic brightness adjustment)
If the surroundings become brighter, the backlight will become
brighter.
If the surroundings become darker, the backlight will become darker.
The brightness sensor measures the brightness of the surrounding
environment. Never place anything in front of the brightness sensor.
Use the BRIGHT button to switch between automatic brightness ad-
justment or no automatic brightness adjustment.
Notes:
·
The OSD Menu automatically disappears several seconds
after the last command.
·
On the screen that appears after the values have been set,
the brightness can be further adjusted by pressing the
 and    buttons.
Adjusting the brightness
Carry out the commands without the On Screen Display (OSD) Menu
displayed. If the OSD Menu is displayed, press the MENU button
(several times may be required) and begin when the OSD Menu has
disappeared. 
When adjusting brightness automatically
Using the adjusted backlight brightness as a base, the brightness can
be adjusted automatically.
1.
Without the OSD Menu being displayed, press the   button or
the   button. The BRIGHT bar will appear at the bottom section
of the screen.
2.
Adjust by pressing the    button (darker) or the    button
(lighter).
Depending on the brightness of the surrounding environment,
the parameters for adjustment may be limited.
3.
Press the MENU button.
The OSD will disappear.
When not adjusting brightness automatically
1.
Without the OSD Menu being displayed, press the  button or the
button.
2.
Adjust by pressing the  button (darker) or the  button (lighter).
3.
Press the MENU button.
The OSD Menu will disappear.
Note: The OSD Menu automatically disappears several seconds af-
ter the last command.
3-3. Manual screen adjustment
Fine adjustments can be made using On Screen Display (OSD) Menu
provided.
1.
Display an image that makes the entire screen very bright. If
using Windows, you can open and use the Adjustment Pattern
on the accompanying Monitor Settings Adjustment Disk. (p. 16)
2.
Press the MENU button.
The ADJUSTMENT Menu will be displayed. 
At this point relevant menu options can be adjusted.
Each time the MENU button is pressed the next menu is selected.
(MENU 1 
 2 
 3 
 4 
 OSD Menu disappears)
Notes:
·
The OSD Menu automatically disappears several seconds
after the last command.
·
This explanation is based on using the Adjustment Pattern
(for Windows) to make adjustments.
MENU 1: ADJUSTMENT
MANUAL:Individual menu options are manually adjusted.
AUTO:
Every menu option is automatically adjusted.
Notes:
·
Press the    button to select AUTO.
·
To choose a menu option : SELECT button
·
To go to MENU 2 : MENU button
CLOCK
The figure below demonstrates how to adjust so that vertical flicker
noise is not emitted. ( 
 buttons)
PHASE
The figure below demonstrates how to adjust so that horizontal flicker
noise is not emitted. ( 
 buttons)
Note: Adjustments to PHASE should be made only after CLOCK has
been correctly set.
]
[
AUTO  BRIGHTNESS  OFF
]
[
B R I G H T
3 1
-
+
[
]
AUTO  BRIGHTNESS  OFF
[
]
Press BRIGHT button
Press BRIGHT button
Automatic brightness adjustment
No automatic brightness adjustment
AUTO  BRIGHTNESS  ON
[
[
-
]
] +
AUTO  BRIGHTNESS  OFF
]
[
B R I G H T
3 1
[
]
[
]
A
A
A
A
A
C
C
D
E
H
V
H
H
J
K
L
M
M
N
N
L
O
O
O
P
P
S
S
S
T
T
U
U
U
8
V
1
4
6
4
H
6
7
0
8
0
5
6 0
1
5
z
0
-
O
P
-
:
: 4
H
E
T
S
x
2
k
z
[
]
A
A
A
A
A
C
C
D
E
H
V
H
H
J
K
L
M
M
N
N
L
O
O
O
P
P
S
S
S
T
T
U
U
U
8
V
1
4
6
4
H
6
7
0
8
0
5
6 0
1
5
z
0
-
O
P
-
:
: 4
H
E
T
S
x
2
k
z
Vertical flicker noise
Horizontal flicker noise
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