Sony SDM-N50PS Service Manual page 12

Eliminating flicker or blurring
(PHASE/PITCH)
When the monitor receives an input signal, the automatic picture
quality function of this monitor is activated. This function
automatically adjusts the phase, pitch, and picture position to
ensure that a clear picture appears on the screen. For more
information about this function, see "Automatic picture quality
adjustment function" on page 17.
For some input signals, this function may not completely adjust
the phase, pitch, and picture position. In this case, you can
manually set these adjustments according the following
instructions. If you manually set these adjustments, they are
stored in memory and automatically recalled whenever the
monitor receives the same input signals.
These settings may have to be repeated if you change the input
signal after reconnecting your computer.
Set the resolution to 1024 × 768 on the computer.
1
2
Load the Utility Disk.
Use the appropriate disk for your computer.
For Windows 95/98
Windows Monitor Information Disk/Utility Disk
For Macintosh
Macintosh Utility Disk
3 Start the Utility Disk and display the test pattern.
For Windows 95/98
Click [Utility Disk] t [Windows]/[Utility.exe].
For Macintosh
Click [Utility Disk] t [SONY-Utility].
4
Press the MENU button.
The main menu appears on the screen.
5 Press the M(+)/m(–) buttons to select (PITCH)
and press the OK button.
The PITCH menu appears on the screen.
6 Press the M(+)/m(–) buttons to adjust the pitch.
Adjust so that the vertical stripes disappear.
7
Press the OK button.
The main menu appears on the screen.
If horizontal stripes are observed over the entire screen, adjust
the phase as the next step.
14
8 Press the M(+)/m(–) buttons to select
(PHASE)
and press the OK button.
The PHASE menu appears on the screen.
9 Press the M(+)/m(–) buttons to adjust the phase.
Adjust so that the horizontal stripes are at a minimum.
10 Click [END] on the screen to turn off the test pattern.
To reset the automatic picture quality adjustment
Select SCREEN RESET and activate it using the RESET menu. See
page 16 for more information on using the RESET menu.
Adjusting the picture position
(H CENTER/V CENTER)
If the picture is not in the center of the screen, adjust the picture's
centering as follows.
These settings may have to be repeated if you change the input
signal after reconnecting your computer.
1 Start the Utility Disk and display the test pattern.
Repeat steps 2 and 3 of "Eliminating flicker or blurring
(PHASE/PITCH)."
2 Press the MENU button.
The main menu appears on the screen.
3 Press the M(+)/m(–) buttons to select
(H
CENTER) or (V CENTER) and press the OK
button.
The H CENTER or V CENTER menu appears on the screen.
4 Move the picture up, down, left, or right until the
frame at the perimeter of the test pattern
disappears.
Press the M(+)/m(–) buttons to adjust the picture's
centering using the H CENTER menu for horizontal
adjustment, or the V CENTER menu for vertical
adjustment.
5 Click [END] on the screen to turn off the test pattern.
Displaying a low-resolution signal
at the actual resolution (ZOOM)
This monitor is preset at the factory to display pictures on the
screen in full, irrespective of the picture's mode or resolution.
You can also view the picture at its actual resolution.
1
Press the MENU button.
The main menu appears on the screen.
2 Press the M (+)/ m (–) buttons to select
(ZOOM)
and press the OK button.
The ZOOM menu appears on the screen.
3 Press the m (–) button to select OFF.
The input signal is displayed on the screen at its actual
resolution.
To display the picture on the screen in full
Select ON in step 3.
Adjusting the color temperature
(COLOR)
The COLOR settings allow you to adjust the picture's color
temperature by changing the color level of the white color field.
Colors appear reddish if the temperature is low, and bluish if the
temperature is high.
9300K is generally suitable for word processing and other text
oriented applications, and 6500K is generally suitable for video
images.
You can set the color temperature to 5000K, 6500K, 9300K or
user adjustment.
1
Press the MENU button.
The main menu appears on the screen.
2 Press the M (+)/ m (–) buttons to select
(COLOR)
and press the OK button.
The COLOR menu appears on the screen.
3 Press the M (+)/ m (–) buttons to select the desired
color temperature.
The preset color temperatures are 5000K, 6500K, and 9300K.
Since the default setting is 9300K, the whites will change
from a bluish hue to a reddish hue as the temperature is
lowered to 6500K and 5000K.
You can set separate color temperatures for each of the video
input signals.
4
If necessary, fine tune the color temperature.
First press the M (+)/ m (–) buttons to select ADJUST and
press the OK button. Then press the M (+)/ m (–) buttons to
select R (Red) or B (Blue) and press the OK button, and then
press the M (+)/ m (–) buttons to adjust the color temperature.
Since this adjustment changes the color temperature by
increasing or decreasing the R and B components with respect
to G (green), the G component is fixed.
USE R AD J UST MEN T
R 1 6 8
G 1 7 0
B 1 7 5
EX I T
If you fine tune the color temperature, the new color setting is
stored in memory for USER ADJUSTMENT and
automatically recalled whenever USER is selected.
The USER ADJUSTMENT setting is common to both the
input signals. If you change the user adjustment setting for
one input signal, the setting for the other input signal is also
changed.
Changing the menu's position
(MENU POSITION)
You can change the menu position if it is blocking an image on
the screen.
1 Press the MENU button.
The main menu appears on the screen.
2
Press the M (+)/ m (–) buttons to select (MENU
POSITION) and press the OK button.
The MENU POSITION menu appears on the screen.
3
Press the M (+)/ m (–) buttons to select the desired
position.
There are three positions each for the top of the screen and the
bottom of the screen, and one for the screen center.
15
GB