Sony SDM-N50PS Service Manual ▷ View online
1-7
16
Resetting the adjustments (RESET)
You can reset the adjustments.
1
Press the MENU button.
The main menu appears on the screen.
2
Press the
M
(+)/
m
(–) buttons to select
0
(RESET)
and press the OK button.
The RESET menu appears on the screen.
You can reset the adjustment data in either of the following
two ways:
You can reset the adjustment data in either of the following
two ways:
Resetting the adjustment data most appropriately
for the current input signal
for the current input signal
Press the
M
(+)/
m
(–) buttons to select SCREEN RESET
and press the OK button.
The automatic picture quality adjustment function of this monitor
automatically adjusts the phase, pitch, and picture position, to the
most appropriate value. If this function is activated, the phase is
automatically adjusted whenever the monitor receives the same
input signal.
The RESET menu is automatically returned to the main menu
after the adjustment data is reset.
automatically adjusts the phase, pitch, and picture position, to the
most appropriate value. If this function is activated, the phase is
automatically adjusted whenever the monitor receives the same
input signal.
The RESET menu is automatically returned to the main menu
after the adjustment data is reset.
Resetting all of the adjustment data for all input
signals
signals
Press the
M
(+)/
m
(–) buttons to select ALL RESET and
press the OK button.
The RESET menu is automatically returned to the main menu
after the adjustment data is reset.
after the adjustment data is reset.
To cancel resetting
Press the
M
(+)/
m
(–) buttons to select
and press the
OK button.
The RESET menu returns to the main menu without resetting the
adjustment data.
adjustment data.
Additional settings (Option)
You can adjust the following options:
• BASS BOOST
• BACKLIGHT
• POWER SAVE
• LANGUAGE
• MENU LOCK
• BASS BOOST
• BACKLIGHT
• POWER SAVE
• LANGUAGE
• MENU LOCK
1
Press the MENU button.
The main menu appears on the screen.
2
Press the
M
(+)/
m
(–) buttons to select
m
.
The option menu appears on the screen.
3
Press the
M
(+)/
m
(–) buttons to select the desired
option item and press the OK button.
Adjust the selected option item according to the following
instructions.
instructions.
Boosting the bass (bass boost function)
This option increases the bass output.
First press the
M
(+)/
m
(–) buttons to select
(BASS
BOOST) and press the OK button. Then press the
M
(+)/
m
(–) buttons to select either ON or OFF.
Adjusting the backlight
If the screen is too bright, adjust the backlight.
First press the
M
(+)/
m
(–) buttons to select
(BACKLIGHT) and press the OK button. Then press
the
M
(+)/
m
(–) buttons to adjust the desired light level.
Setting up the power saving mode
This monitor has a function which enables it to enter the power
save mode automatically according to the power saving settings
of the computer. You can prevent the monitor from entering the
power saving mode by setting the following option to OFF.
save mode automatically according to the power saving settings
of the computer. You can prevent the monitor from entering the
power saving mode by setting the following option to OFF.
First press the
M
(+)/
m
(–) buttons to select
(POWER
SAVE) and press the OK button. Then press the
M
(+)/
m
(–) buttons to select either ON or OFF.
Selecting the on-screen menu language
See “Selecting the on-screen menu language (LANGUAGE)” on
page 11.
page 11.
Locking the menus and controls (the menu lock
function)
function)
You can protect adjustment data by locking the menus and
controls.
controls.
First press the
M
(+)/
m
(–) buttons to select
(MENU
LOCK) and press the OK button. Then press the
M
(+)/
m
(–) buttons and select ON.
Only the power switch, and
(MENU LOCK) of the option
menu will operate. If any other items are selected, the
mark
appears on the screen.
To cancel the menu lock function
Repeat the procedure above and set and
(MENU LOCK) to OFF.
ZZ...
17
GB
Technical Features
Power saving function
This monitor meets the power-saving guidelines set by VESA, NUTEK, and
E
NERGY
S
TAR. If the monitor is connected to a computer
or graphics board that is DPMS (Display Power Management Signaling) compliant, the monitor will automatically enter the power saving
mode.
mode.
DPMS defines three power saving states according to the state of
the sync signals supplied from the computer. This monitor’s
power consumption is input at approximately 3 W in all of these
states if the power saving function is set to ON.
When your computer enters in the power saving mode, the input
signal is cut and NO INPUT SIGNAL appears on the screen.
After a few seconds, the monitor enters power saving mode.
the sync signals supplied from the computer. This monitor’s
power consumption is input at approximately 3 W in all of these
states if the power saving function is set to ON.
When your computer enters in the power saving mode, the input
signal is cut and NO INPUT SIGNAL appears on the screen.
After a few seconds, the monitor enters power saving mode.
* “Sleep” and “deep sleep” are power saving modes defined by the
Environmental Protection Agency.
Note
The power saving function may not work normally if sync signals other
than those listed above are supplied. In such a case, set the power saving
function to OFF.
than those listed above are supplied. In such a case, set the power saving
function to OFF.
Automatic picture quality adjustment function
When the monitor receives an input signal, it automatically
matches the signal to one of the factory preset modes stored in the
monitor’s memory to provide a high quality picture at the center
of the screen. (See Appendix for a list of the factory preset
modes.)
For input signals that do not match one of the factory preset
modes, the automatic picture quality adjustment function of this
monitor automatically adjusts the phase, pitch, and picture
position, and ensures that a clear picture appears on the screen for
any timing within the monitor’s frequency range (horizontal: 30 –
61 kHz, vertical: 48 – 85 Hz).
Consequently, the first time the monitor receives input signals
that do not match one of the factory preset modes, the monitor
may take a longer time than normal for displaying the picture on
the screen. This adjustment data is automatically stored in
memory so that next time, the monitor will function in the same
way as when the monitor receives the signals that match one of
the factory preset modes.
In all modes, if the picture is adjusted, the adjustment data is
stored as a user mode and automatically recalled whenever the
same input signal is received.
matches the signal to one of the factory preset modes stored in the
monitor’s memory to provide a high quality picture at the center
of the screen. (See Appendix for a list of the factory preset
modes.)
For input signals that do not match one of the factory preset
modes, the automatic picture quality adjustment function of this
monitor automatically adjusts the phase, pitch, and picture
position, and ensures that a clear picture appears on the screen for
any timing within the monitor’s frequency range (horizontal: 30 –
61 kHz, vertical: 48 – 85 Hz).
Consequently, the first time the monitor receives input signals
that do not match one of the factory preset modes, the monitor
may take a longer time than normal for displaying the picture on
the screen. This adjustment data is automatically stored in
memory so that next time, the monitor will function in the same
way as when the monitor receives the signals that match one of
the factory preset modes.
In all modes, if the picture is adjusted, the adjustment data is
stored as a user mode and automatically recalled whenever the
same input signal is received.
Note on the adjusting the phase
If the automatic picture quality adjustment function is activated, the
picture moves slightly whenever the monitor receives the input signal,
regardless of the stored adjustment.
picture moves slightly whenever the monitor receives the input signal,
regardless of the stored adjustment.
Note
While the automatic picture quality adjustment function is activated, only
the power switch, and INPUT button will operate.
the power switch, and INPUT button will operate.
Power consumption state
Power consumption
AC power indicator
1
(power) indicator
normal operation
28
W
green
green
power saving mode
≤ 3
W
orange
orange
1
(power): off
≤ 3
W
red
off
AC power: off
0 W
off
off
Power saving
state
state
Sync signal state
suspend (sleep)*
horizontal: on / vertical: off
standby (sleep)*
horizontal: off / vertical: on
active off (deep sleep)*
horizontal: off / vertical: off
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18
Troubleshooting
Before contacting technical support, refer to this section.
On-screen messages
If there is something wrong with the input signal, one of the
following messages appears on the screen. To solve the problem,
see “Trouble symptoms and remedies” on page 19.
following messages appears on the screen. To solve the problem,
see “Trouble symptoms and remedies” on page 19.
If OUT OF SCAN RANGE appears on the screen
This indicates that the input signal is not supported by the
monitor’s specifications. Check the following items.
monitor’s specifications. Check the following items.
If “xx.x kHz/xx Hz” is displayed
This indicates that either the horizontal or vertical frequency
is not supported by the monitor’s specifications.
The figures indicate the horizontal and vertical frequencies of
the current input signal. The horizontal frequencies above
100 kHz and the vertical frequencies above 100 Hz are
represented by 99.9 kHz and 99 Hz, respectively.
is not supported by the monitor’s specifications.
The figures indicate the horizontal and vertical frequencies of
the current input signal. The horizontal frequencies above
100 kHz and the vertical frequencies above 100 Hz are
represented by 99.9 kHz and 99 Hz, respectively.
If “RESOLUTION > XGA” is displayed
This indicates that the resolution is not supported by the
monitor’s specifications.
monitor’s specifications.
If NO INPUT SIGNAL appears on the screen
This indicates that no signal is input, or that no signal is input
from the currently selected connector.
from the currently selected connector.
INPUT:
This indicates the currently selected connector (INPUT: 1 or
INPUT: 2).
INPUT: 2).
GO TO POWER SAVE
The monitor will enter the power saving mode after about 4
seconds from the message is displayed.
seconds from the message is displayed.
If CABLE DISCONNECTED appears on the screen
This indicates that the video signal cable has been disconnected
from the currently selected connector.
from the currently selected connector.
INPUT:
This indicates the currently selected connector (INPUT: 1 or
INPUT: 2).
INPUT: 2).
GO TO POWER SAVE
The monitor will enter the power saving mode after about 4
seconds from the message is displayed.
seconds from the message is displayed.
OUT OF SCAN RANGE
x x . x k H z /
x x H z
I NFORMA T I ON
NO
I NPUT S I GNA L
I NPUT : 1
GO TO POWER SAVE
I NFORMA T I ON
CAB L E D I SCONNECT ED
I NPUT : 1
GO TO POWER SAVE
I NFORMA T I ON
19
GB
Trouble symptoms and remedies
If a problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction manual.
Use the self-diagnosis function (page 21) if the following recommendations do not resolve the problem.
Use the self-diagnosis function (page 21) if the following recommendations do not resolve the problem.
Symptom
Check these items
No picture
If the media engine’s AC power
indicator is not lit
indicator is not lit
• Check that the power cord is properly connected.
If the media engine’s AC power
indicator is red
indicator is red
• Check that the display’s
1
(power) switch is in the “on” position.
The media engine’s AC power
indicator is flashing red
indicator is flashing red
• Check that the system connecting cable is properly connected and all plugs are firmly
seated in their sockets (page 8).
• Press the media engine’s AC power switch twice to turn the monitor off and then on.
If the display’s
1
(power) indicator
is not lit, or if the
1
(power)
indicator will not light up when the
1
(power) switch is pressed
• Check that the display’s
1
(power) switch is in the “on” position.
• Check that the media engine’s AC power switch is in the “on” position.
• Check that the system connecting cable is properly connected and all plugs are firmly
• Check that the system connecting cable is properly connected and all plugs are firmly
seated in their sockets (page 8).
If the display’s
1
(power) indicator
is green or flashing orange
• Use the self-diagnostics function (page 21).
If CABLE DISCONNECTED
appears on the screen
appears on the screen
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets (page 8).
• Check that the input select setting is correct (page 11).
• Check that the video input connector’s pins are not bent or pushed in.
• A non-supplied video signal cable is connected. If you connect a non-supplied video
• Check that the video input connector’s pins are not bent or pushed in.
• A non-supplied video signal cable is connected. If you connect a non-supplied video
signal cable, CABLE DISCONNECTED appears on the screen before entering the power
saving mode. This is not a malfunction.
saving mode. This is not a malfunction.
If NO INPUT SIGNAL appears on
the screen, or the display’s
the screen, or the display’s
1
(power) indicator is orange
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets (page 8).
• Check that the input select setting is correct (page 11).
• Check that the video input connector’s pins are not bent or pushed in.
• Check that the video input connector’s pins are not bent or pushed in.
x
Problems caused by the connected computer or other equipment
• The computer is in the power saving mode. Try pressing any key on the keyboard or
moving the mouse.
• Check that the computer’s power is “on.”
If OUT OF SCAN RANGE appears
on the screen
on the screen
x
Problems caused by the connected computer or other equipment
• Check that the video frequency range is within that specified for the monitor. If you
replaced an old monitor with this monitor, reconnect the old monitor and adjust the
frequency range to the following:
Horizontal: 30 – 61 kHz
Vertical frequency: 48 – 85 Hz (only XGA mode at 75 Hz)
frequency range to the following:
Horizontal: 30 – 61 kHz
Vertical frequency: 48 – 85 Hz (only XGA mode at 75 Hz)
If using Windows 95/98
• If you replaced an old monitor with this monitor, reconnect the old monitor and do the
following. Install the Windows Monitor Information Disk (page 9) and select this monitor
(“SDM-N50PS”) from among the Sony monitors in the Windows 95/98 monitor selection
screen.
(“SDM-N50PS”) from among the Sony monitors in the Windows 95/98 monitor selection
screen.
If using a Macintosh system
• Check and refer to the supplied “Notes for Macintosh users.”
(continued)
1-9
20
Displaying this monitor’s name, serial number,
and date of manufacture.
and date of manufacture.
While the monitor is receiving a video signal, press and hold the
MENU button for more than 5 seconds to display this monitor’s
information box.
MENU button for more than 5 seconds to display this monitor’s
information box.
If any problem persists, call your authorized Sony dealer and give
the following information:
• Model name: SDM-N50PS
• Serial number
• Name and specifications of your computer and graphics board.
the following information:
• Model name: SDM-N50PS
• Serial number
• Name and specifications of your computer and graphics board.
The picture does not switch to the
vertical view
vertical view
x
Problems caused by the connected computer or other equipment
• Install the supplied WinPortrait (for Windows 95/98 and NT4.0) or MacPortrait (for
Macintosh) (page 10). For more information, see the supplied software’s instruction
manual. If the software does not work properly, contact the software’s customer service.
manual. If the software does not work properly, contact the software’s customer service.
Picture flickers, bounces,
oscillates, or is scrambled
oscillates, or is scrambled
• Adjust the pitch and phase (page 14).
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
monitors, laser printers, fluorescent lighting, televisions, or electric fans.
• Move the monitor away from power lines or place a magnetic shield near the monitor.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
x
Problems caused by the connected computer or other equipment
• Check your graphics board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, Macintosh 19" Color, etc.) and the frequency of
• Confirm that the graphics mode (VESA, Macintosh 19" Color, etc.) and the frequency of
the input signal are supported by this monitor (Appendix). Even if the frequency is within
the proper range, some graphics boards may have a sync pulse that is too narrow for the
monitor to sync correctly.
the proper range, some graphics boards may have a sync pulse that is too narrow for the
monitor to sync correctly.
• Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible picture.
Picture is fuzzy
• Adjust the brightness and contrast (page 13).
• Adjust the pitch and phase (page 14).
• Adjust the pitch and phase (page 14).
Picture is ghosting
• Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are firmly seated in their sockets.
• Check that all plugs are firmly seated in their sockets.
Picture is not centered or sized
properly
properly
• Adjust the pitch and phase (page 14).
• Adjust the picture position (page 14). Note that for some input signals or graphics boards,
• Adjust the picture position (page 14). Note that for some input signals or graphics boards,
the picture may not fill the screen to the edges.
The picture is too small
• Set the zoom setting to ON (page 15).
x
Problems caused by the connected computer or other equipment
• Set the computer’s resolution to the screen’s resolution.
Wavy or elliptical pattern (moire)
is visible
is visible
• Adjust the pitch and phase (page 14).
Color is not uniform
• Adjust the pitch and phase (page 14).
White does not look white
• Adjust the color temperature (page 15).
Monitor buttons do not operate
(
(
appears on the screen)
• If the menu lock is set to ON, set it to OFF (page 16).
The monitor turns off after a while
• Set the power saving function to OFF (page 16).
x
Problems caused by the connected computer or other equipment
• Set the computer’s power saving setting to off.
Symptom
Check these items
INFORMATION
MODEL : SDM-N50PS
SER NO : 1234567
MANUFACTURED : 2000-15
SER NO : 1234567
MANUFACTURED : 2000-15
MENU
Example
Model name
Serial number
Week and year
of manufacture
of manufacture
21
GB
Self-diagnosis function
This monitor is equipped with a self-diagnosis function. If there is
a problem with your monitor or computer(s), the screen will go
blank and the display’s
a problem with your monitor or computer(s), the screen will go
blank and the display’s
1
(power) indicator will either light up
green or flash orange. If the
1
(power) indicator is lit in orange,
the computer is in power saving mode. Try pressing any key on
the keyboard or moving the mouse.
the keyboard or moving the mouse.
If the display’s
1
(power) indicator is green
1
Turn off the media engine’s AC power switch and
disconnect the video signal cables from the INPUT1
and INPUT2 connectors of the media engine.
disconnect the video signal cables from the INPUT1
and INPUT2 connectors of the media engine.
2
Press the media engine’s AC power switch to turn
the monitor on.
the monitor on.
If all four color bars appear (white, red, green, blue), the monitor
is working properly. Reconnect the video input cables and check
the condition of your computer(s).
is working properly. Reconnect the video input cables and check
the condition of your computer(s).
If the color bars do not appear, there is a potential monitor failure.
Inform your authorized Sony dealer of the monitor’s condition.
Inform your authorized Sony dealer of the monitor’s condition.
If the display’s
1
(power) indicator is flashing
orange
Press the
1
(power) switch twice to turn the monitor off
and then on.
If the
1
(power) indicator lights up green, the monitor is working
properly.
If the
1
(power) indicator is still flashing, there is a potential
monitor failure. Count the number of seconds between orange
flashes of the
flashes of the
1
(power) indicator and inform your authorized
Sony dealer of the monitor’s condition. Be sure to note the model
name and serial number of your monitor. Also note the make and
model of your computer and graphic board.
name and serial number of your monitor. Also note the make and
model of your computer and graphic board.
Specifications
LCD panel
Panel type: a-Si TFT Active Matrix
Picture size: 15 inch (38 cm)
Picture size: 15 inch (38 cm)
Input signal format
RGB operating frequency*
Horizontal: 30 – 61 kHz
Vertical: 48 – 85 Hz (only XGA mode
at 75 Hz)
Horizontal: 30 – 61 kHz
Vertical: 48 – 85 Hz (only XGA mode
at 75 Hz)
Resolution
Horizontal: Max.1024 dots
Vertical: Max.768 lines
Vertical: Max.768 lines
Input signal levels
RGB video signal
0.700 Vp-p, 75
Ω
, positive
SYNC signal
TTL level, 2 k
Ω
,
positive or negative
(Separate horizontal and vertical,
or composite sync)
0.3 Vp-p, 75
(Separate horizontal and vertical,
or composite sync)
0.3 Vp-p, 75
Ω
, negative
(Sync on green)
Headphones jack
Stereo minijack
Accepts impedance of more than 16
Accepts impedance of more than 16
Ω
AUDIO IN jack
Stereo minijack
Accepts impedance of 47 k
Accepts impedance of 47 k
Ω
Accepts level 0.5 Vrms
Power requirements
100 – 240 V, 50 – 60 Hz,
0.45 – 0.25 A
0.45 – 0.25 A
Power consumption
Max. 28 W
Operating temperature
5 – 35
˚
C
Dimensions (width/height/depth)
Display (without stand):
Approx. 356
×
280
×
26 mm
(14
1
/
16
×
11
1
/
6
×
1
1
/
16
inches)
Display (with stand, at maximum
angle: 40
angle: 40
˚
):
Approx. 356
×
225
×
203 mm
(14
1
/
16
×
8
7
/
8
×
8 inches)
Media engine (without stand):
Approx. 45
×
180
×
180 mm
(1
3
/
4
×
7
1
/
8
×
7
1
/
8
inches)
Media engine (with stand):
Approx. 94
×
185
×
180 mm
(3
11
/
16
×
7
1
/
4
×
7
1
/
8
inches)
Mass
Display (with stand):
Approx. 1.75 kg (3 lb 140 oz)
Media engine (with stand):
Approx. 0.85 kg (1 lb 14 oz)
Plug & Play
DDC1/DDC2B/DDC2Bi
Accessories
See page 8.
* Recommended horizontal and vertical timing condition
• Horizontal sync width duty should be more than 4.8% of total
horizontal time or 0.8 µs, whichever is larger.
• Horizontal blanking width should be more than 2.5 µsec.
• Vertical blanking width should be more than 450 µsec.
• Vertical blanking width should be more than 450 µsec.
Design and specifications are subject to change without notice.
1
(power)
indicator
SDM-N50PS
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
2-1
2-2. JACK COVER REMOVAL
1
Two screws
(Tapping screw 3x8)
2
Remove the rear cover after
move it in the direction of
allow
allow
A
and also remove
concavities.
LCD module (TFT)
Cushion
Four concavities
A
Four claws
1
Screw (+P3x5 TYPE2 SLIT)
2
Remove the jack cover after
move it in the direction of
allow
allow
A
and also remove
concavities.
LCD module (TFT)
Cushion
Two claws
Two concavities
A
Click on the first or last page to see other SDM-N50PS service manuals if exist.