NEC Computer Monitor JC 1431VMB User Manual

User Manual  
N E C  
 
The marketing and sales of the equipment was reported to the BZT.  
(Federal Approvals Office for Telecommunications)  
The right to retest this equipment to verify compliance with the regulation  
was given to BZT.  
ES MUSS SICHERGESTELLT WERDEN, DASS DIR VORGESEHENE  
NETZSTECKDOSE NAHE AM GERÄT ANGEBRACHT UND  
LETCHT ZUGÄNGLICH IST.  
Die ergonomischen Anforderungen an Bildschirmgeräte im Bürobereich  
nach ZH1 / 6 1 8 werden in Verbindung mit der  
Videokarte: Prisma Graphic Sys. VGA RT800  
erfüllt. Aus ergonomischen Gründer wird empfohlen, die Grundfarben  
Blau und Rot nicht auf dunklem Untergrund zu verwenden (schlechte  
Lesbarkeit und erhöhte Augenbelastung bei zu geringem Zeichenkontrast  
wären die Folge). Weiterhin muß sichergestellt werden, ddie minimale  
Bildwiederholfrequenz von  
76 Hz bei Positivdarstellung  
64 Hz bei Negativdarstellung  
und  
nicht unterschritten wird (störendes Bildschirmflimmern könnte die Folge  
sein).  
 
Customer’s Record  
The serial number of this product appears on the back of the unit.  
You should note this serial number in the space provided below and retain  
this manual as a permanent record of your purchase to aid in identifica-  
tion in the event of theft or loss.  
JC-1431VMB  
Model number:  
Serial number:  
WARNING: To reduce the risk of fire or electric shock, do not expose  
this Computer Display to rain or moisture.  
Caution  
use only with power cord plug having a parallel  
For 120V Operation,  
blade, grounding type plug, rated 125V 10A.  
use only with power cord having a tandem blade,  
For 240V Operation,  
grounding type plug, rated 250V 5A.  
Bescheinigung des Herstellers/lmporteurs  
Hiermit wird bescheinigt, daß der/die/das  
Monito.r. JC-1431V.M.B .  
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(Gerät, Typ, Bezeichnung)  
In Übereinstimmung mit den Bestimmungen der  
BMPT. . Vfg.. 243/1991  
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(Amtsblattverfugung)  
funk-entstört ist.  
das  
zur  
Dem Bundesamt fur Zulassungen in der Telekommunikation wurde  
angezeigt und die Berechtigung  
inverkehrbringen dieses Gerätes  
Überprüfung der Serie auf Einhaltung der Bestimmungen eingeräumt.  
Declaration of the Manufacturer or Importer  
. . . . . . . . . M. . . .o. .n. .i.t.o. .r. . . . .J. C. . .-. 1. . .4. .3. .1. .V. . M. . . .B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Equipment, Type, Model-No.  
.
We hereby certify that the  
. . . . . . . . . B. . .M. . . .P. .T. . . . .V. . .f.g. ... . . 2. . 4. .3. .1. .1. .9. .9. .1. . . . . . . . . .  
1s in compliance with the requirement of  
RFI Suppressed.  
.
 
Ill  
Contents  
1 NEC SVGA Monitor  
2 Setting Up  
Environment  
Connecting the Monitor  
.........................  
................  
2-l  
2-2  
3 Using the Monitor  
Front Panel Controls  
...................  
.......................  
3-2  
Power Switch  
Horizontal Size Control  
Vertical Size Control  
Brightness Control  
3-2  
3-2  
3-2  
3-2  
3-2  
3-3  
3-3  
3-3  
...............  
.................  
...................  
....................  
....................  
...........  
..............  
Contrast Control  
Rear Panel Controls  
Horizontal Position Control  
Vertical Position Control  
Tilt/Swivel Base  
Problem Solving  
Troubleshooting  
......................  
......................  
......................  
3-4  
3-5  
3-6  
3-6  
. . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Cleaning  
4 Reviewing Technical Data  
Pin Assignments  
Timing Tables  
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4-3  
4-4  
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List of Tables  
Troubleshooting  
SVGA Monitor Specifications  
Pin Assignments  
Preset Timing  
Preset Timing SVGA/EVGA .........  
....................  
..........  
.....................  
3-6  
4-l  
4-3  
4-5  
4-6  
4-7  
VGA  
................  
Preset Timing  
VESA VGA ...........  
 
NEC SVGA Monitor  
Congratulations on your purchase of the NEC  
SVGA color monitor. NEC’s SVGA Monitor offers  
a maximum horizontal resolution of 1024 Pixels by  
a maximum vertical resolution of 768 Pixels.  
Additionally, the SVGA Monitor provides System  
compatibility via the following features:  
n
provides automatic adjustment to vertical and  
horizontal frequencies including VGA, SVGA,  
EVGA, and VESA VGA.  
n
n
displays an infinite number of colors (limited by  
hardware and Software applications).  
horizontal and vertical size and Position controls.  
To properly set up and use your monitor, read the  
sections that follow.  
 
Setting Up  
The SVGA Monitor shipping carton contains the  
monitor, user manual and power cable. If these items  
are missing, contact your NEC dealer.  
Please save the original box and packing materials  
for future transportation 0; shipment of this monitor.  
Use the following guidelines to set up your monitor:  
ENVIRONMENT  
n
n
n
Place the monitor in a dry, clean, dust-free  
location.  
Allow adequate Ventilation around the monitor  
so that heat generated can dissipate properly.  
Place the monitor away from high-capacity  
transformers, electric motors. and other strong  
magnetic fields.  
To minimize eye fatigue:  
do not place the monitor against a bright  
background or where sunlight will shine  
directly on it.  
position the monitorjust below eye level.  
 
2- 2 Setting Up  
Use the following steps to connect the monitor to  
pur Computer.  
CONNECTING  
THE MONITOR  
1. Turn off and unplug the computer’s power Cord.  
Unplugging the  
Computer  
2. The voltage selector is located on the rear of the  
monitor. Determine the appropriate voltage,  
115V or 23OV, and set the switch accordingly.  
Se tting the  
voltage  
Voltage Selector  
 
2-4 Setting Up  
4. Connect one end of the monitor power cable to  
the rear of the monitor. Plug the other end into a  
properly grounded wall outlet.  
Connecting the  
power cable  
WARNING: DO not place the monitor or any other  
object on the power cable. Darnage to a power cable  
can cause fire or electrical shock.  
 
Setting Up 2-5  
5. If you are setting up the Computer for the first  
time, see your user manual. Otherwise, continue  
with the following step.  
6. Plug in the Computer power cable.  
If you have any Problems, please refer to the  
Troubleshooting section of this mannual.  
 
Using the Monitor  
3
This section defines monitor controls and explains  
how to use them to your advantage.  
You may adjust the viewing area of the screen and  
modify specific screen qualities including brightness  
and contrast. Further, the tilt/swivel feature allows  
proper positioning of the monitor.  
The figure below shows the front panel features.  
Loca ting con trols  
Cordrast  
Control  
Brightness  
Control  
 
3-2 Using the Monitor  
FRONT PANEL  
CONTROLS  
Read the descriptions that follow to learn how to  
operate the front panel controls.  
Press this switch to control power to the monitor-.  
The power indicator lights when the monitor power  
is on.  
Power Switch  
This control sets the monitor’s screen to the desired  
horizontal width. Move the control counterclockwise  
to decrease the horizontal width, and clockwise to  
increase the horizontal width. The size of the image  
depends on the signal applied to the monitor.  
Horizontal  
Size Control  
This control sets the monitor’s screen to the desired  
vertical height. To decrease the vertical length of  
the Screen, move the control counterclockwise, to  
increase it move the control clockwise. The size of  
the image depends on the signal applied to the monitor.  
Vertical  
Size Control  
Selects the degree of brightness. Move the control  
counterclockwise to dim the screen and clockwise to  
make the screen brighter. A brighter screen will limit  
the on-screen glare and also affect the image quality.  
Brightness  
Control  
Use the contrast control to select how dark or light  
you would like the monitor’s foreground. Move the  
control counterclockwise to make the screen darker,  
clockwise to make the screen lighter. The position of  
the contrast control does affect the image quality.  
Contrast  
Control  
 
Using the Monitor 3-3  
Read the description that follows for an understand-  
ing of how each control operates. The figure below  
locates the rear panel controls.  
REAR PANEL  
CONTROLS  
Turn the Horizontal Position Control to adjust the  
image’s horizontal Position.  
Horizontal  
Position  
Control  
Turn the Vertical Position Control to adjust the  
image’s vertical Position.  
Vertical  
Position  
Control  
Loca ting con trols  
Vertical Position  
Control  
Horizontal Position  
Control  
 
3-4 Using the Monitor  
TILT/SWIVEL  
BASE  
The tilt/swivel base allows you to tilt the screen up  
or down, and move it from side to side, 45 degrees to  
the right or left.  
You can reposition the monitor up to an angle of  
-5 degrees forward and +15 degrees backwards.  
Positioning the  
monitor  
 
Using the Monitor 3-5  
If you encounter a problem with the SVGA Monitor,  
the problem may be a simple one that you can solve  
yourself. Check the items on the following list when  
you encounter a problem:  
PROBLEM  
SOLVING  
The power switch for the monitor is on.  
The signal cable and power cord are securely  
connected.  
The monitor is connected to a working electrical  
outlet. Test the outlet by plugging in a lamp or  
other electrical device.  
Check that the signal timing and pin assignments  
meet the SVGA Monitor’s specifications  
(see “Pin Assignments” and “Signal Timing” in  
Section 4).  
Use the table on the following page to trouble-  
shoot your monitor.  
 
3-6 Using the Monitor  
Use the troubleshooting table below to isolate any  
problems and respond with the appropriate corrective  
action.  
TROUBLE-  
SHOOTING  
If you still cannot determine the problem, contact  
your NEC dealer.  
Troubleshooting  
CORRECTIVE ACTION  
PROBLEM  
Turn off the power switch. Wait at least  
30 seconds and then turn it on again.  
No picture appears on the  
monitor Screen.  
Adjust the Brightness and Contrast  
controls.  
The monitor is dark, but the  
power indicator is lit.  
Adjust the Vertical Position control or  
Horizontial Position control.  
Image area is not centered.  
Clean the outside of the monitor as needed. Use the  
following precautions as guidelines:  
CLEANING  
n
Unplug the monitor’s power cord from the outlet  
before cleaning.  
n
n
Use only a damp cloth and mild detergent.  
DO not attempt to open the unit.  
 
Reviewing  
Technical Data  
The following tables provide specifications, pin  
assignments and signal timing:  
SVGA Monitor Specifications  
DESCRIPTION  
ITEM  
Physical Dimensions  
Height  
14.4 inches (365 mm)  
14.5 inches (367 mm)  
15.4 inches (390 mm)  
25.3 Ibs. (11.5 kg)  
Width  
Depth  
Weight  
Operating Environment  
Temperature  
-32°F to 95°F (0°C to 35°C)  
10% to 80% (non-condensing)  
-4°F to 140°F (-20°C to 60°C)  
5% to 95%  
Humidity  
Storage Temperatures  
Storage Humidity  
Power  
A C lOO-125V/200-24OV, 50Hz/60Hz  
85 W Maximum  
14 inches, 90° deflection, 0.28 mm dot pitch  
Power Source  
Power Consumption  
Picture Tube  
Resolution  
Horizontal  
Vertical  
1024 pixels (non-interlaced/interlaced)  
768 pixels (non-interlaced/interlaced)  
 
4-2 Reviewing Technical Data  
SVGA Monitor Specifications (cont’d)  
ITEM  
DESCRIPTION  
Synchronization  
Horizontal  
Vertical  
31.5 kHz/35.2 kHz/35.5 kHz/37.9 kHz/48 kHz  
50 Hz to 90 Hz continuous  
Active Display Area  
Horizontal  
9.6 inches (246 mm) depends on signal  
timing used  
Vertical  
7.2 inches (185 mm) depends on signal  
timing used  
Input Signals  
Video  
Analog 0.7 Vp-p/75 ohm positive  
Separate Sync.  
TTL level: Horizontal, Positive/Negative,  
Vertical, Positive/Negative  
Display Colors  
Analog Input  
Infinite colors (may be limited by hardware  
or Software)  
 
Reviewing Technical Data 4-3  
The SVGA monitor uses a l5-pin, mini high-density  
D-SUB male connector for the input Signal. The figure  
below shows the connector pin locations. See the  
table that follows for connector pin assignments.  
PIN  
ASSIGNMENTS  
Connector pin  
Input Signal  
Connector  
loca tions  
Pin Assignments  
SIGNAL  
PIN NUMBER  
Red  
Green  
Blue  
Ground  
Ground  
R-Ground  
G-Ground  
B-Ground  
No Connection  
Ground  
8
9
10  
11  
Ground  
No Connection  
Horizontal Sync.  
Vertical Sync.  
No Connection  
12  
13  
14  
15  
 
4-4 Reviewing Technical Data  
The following diagram and tables show the preset  
timing used in the monitor’s VGA, SVGA, EVGA  
and VESA VGA modes.  
TIMING  
TABLES  
SEPARATE SYNC.  
VIDEO  
HORIZONTAL  
\
d
-
f
-
A
VIDEO  
VERTICAL  
 
Reviewing Technical Data 4-5  
Preset Timing  
VGA  
ITEM  
(kHz)  
640 x 350  
3 1.469  
3 1.778  
3.813  
720 x 400  
3 1.469  
3 1.778  
3.813  
640 x 480  
3 1.469  
3 1.778  
3.813  
A
B
C
(Line time total)  
(Sync. pulse width)  
(Back porch)  
1.589  
1.589  
1.589  
D ps (Active)  
26.058  
0.318  
26.05  
8
26.058  
0.3 18  
E ps (Front Porch)  
0.318  
70.080  
14.268  
0.064  
70.080  
14.268  
0.064  
59.940  
16.683  
0.064  
(Hz)  
P ms (Frame time total)  
Q ms (Sync. pulse width)  
R ms (Back porch)  
S ms (Active)  
1.716  
0.890  
0.793  
11.504  
0.985  
13.156  
0.159  
15.762  
0.064  
T ms (Front porch)  
Separate  
Sync.  
Separate  
Sync.  
Separate  
Sync.  
Horizontal Sync. Polarity  
Vertical Sync. Polarity  
Interlaced  
Positive  
Negative  
No  
Negative  
Positive  
No  
Negative  
Negative  
No  
 
4-6 Reviewing Technical Data  
Preset Timing  
SVGA/EVGA  
ITEM  
(kHz)  
800 x 600  
35.156  
28.44  
1024x768  
35.587  
28.100  
3.910  
A
B
C
D
E
(Line tirne total)  
(Sync. pulse width)  
(Back porch)  
(Active)  
2.000  
3.556  
1.247  
22.222  
0.667  
22.760  
0.178  
(Front Porch)  
56.250  
17.778  
0.057  
86.960  
11.499  
0.112  
(Hz)  
P ms (Frame time total)  
Q ms (Sync. pulse width)  
R ms (Back porch)  
S ms (Active)  
0.626  
0.563  
17.067  
0.028  
10.824  
0.0100  
Separate Sync.  
Positive  
Positive  
Yes  
T ms (Front porch)  
Separate Sync  
Negative  
Negative  
No  
Horizontal Sync. Polarity  
Vertical Sync. Polarity  
Interlaced  
 
Reviewing Technical Data 4-7  
Preset Timing  
VESA Timings  
ITEM  
(kHz)  
640 x 480  
800 x 600  
48.090  
20.794  
2.399  
1024x768  
48.363  
20.677  
2.092  
37.860  
26.4 13  
1.270  
A
B
C
D
E
(Line time total)  
(Sync. pulse width)  
(Back porch)  
(Active)  
1.279  
4.603  
20.3 17  
0.762  
72.809  
13.735  
0.079  
0.740  
12.678  
0.238  
2.462  
15.995  
1.119  
15.754  
0.369  
(Front Porch)  
72.010  
13.887  
0.124  
60.000  
16.667  
0.124  
(Hz)  
P ms (Frame time total)  
Q ms (Sync. pulse width)  
R ms (Back porch)  
S ms (Active)  
0.479  
0.600  
12.510  
0.772  
15.880  
0.062  
T ms (Front porch)  
Separate  
Sync.  
Separate  
Sync.  
Separate  
Sync.  
Positive  
Positive  
No  
Horizontal Sync. Polarity  
Vertical Sync. Polarity  
Interlaced  
Negative  
Negative  
No  
Positive  
Positive  
No  
 

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