NEC V 423 User Manual

							
English-9
English
Terminal Panel
From 
Option 
control 
unit
 AC IN connector
Connects with the supplied power cord.
 Main Power Switch
On/Off switch to turn main power ON/OFF.
 DISPLAYPORT connector
To input DisplayPort signals.
 HDMI connector
To input digital HDMI signals.
 DVI connector (DVI-D)
IN connector:  To input digital RGB signals from a computer 
or HDTV device having a digital RGB output.
* This connector does not support analog input.
OUT connector:  To output the DVI signal from either DVI IN 
or HDMI connection.
 VGA IN (mini D-Sub 15 pin)
To input analog RGB signals from a personal computer or 
from other RGB equipment. This input can be used with an 
RGB, COMPONENT, SCART, VIDEO or S-VIDEO source. 
Please select signal type in TERMINAL SETTING. 
See page 25.
NOTE:  When you use this connector for COMPONENT, 
SCART, VIDEO or S-VIDEO, please use a suitable signal 
cable. If you have any questions, please ask your dealer.
\b VIDEO1 IN connector (BNC)
To input a composite video signal.
\f LAN port (RJ-45)
LAN connection. See page 32.

 RS-232C (D-Sub 9 pin)
IN connector:  Connect RS-232C input from external 
equipment such as a PC in order to control RS-232C functions.
OUT connector:  Connect RS-232C output. To connect 
multiple MultiSync monitors via RS-232C daisy Chain.
 REMOTE IN (Black)
Use the optional wired remote control by connecting it to your 
monitor.
NOTE:  Do not use this connector unless specifi ed.

 AUDIO OUT (Blue)
To output the audio signal from the AUDIO IN 1, DPORT and 
HDMI to an external device (stereo receiver, amplifi er, etc.).
 AUDIO IN 1 (Blue)
To input audio signal from external equipment such as a 
computer, VCR or DVD player.
 EXTERNAL SPEAKER TERMINAL
To output the audio signal from AUDIO 1, DPORT and HDMI. 
Red terminal is plus (+). 
Black terminal is minus (-).
Note:  This speaker terminal is for 15 W + 15 W (8 ohm) 
speaker.
 Internal/External speaker switch
Switch to turn internal speaker/external speaker.
: Internal speaker   : External speaker.
NOTE:  Please power off the monitor when you use the 
Internal/External speaker switch.
 Kensington Lock
For security and theft prevention.
 Option board slot
Slot 2 type accessories are available. Please contact your 
supplier for detailed information.
NOTE:  Please contact your supplier for available option board.
 Internal speaker 
						

							
English-10
Wireless Remote Control
 POWER button
Switches the power on/standby.
 INPUT button
Selects input signal.
 DVI: DVI
 DISPLAYPORT: DPORT
 VGA: VGA
 HDMI: HDMI
  DVD/HD: DVD/HD, SCART
  VIDEO: VIDEO1, VIDEO2
 S-VIDEO: S-VIDEO
  OPTION: Depends on your connection
 PICTURE MODE button
Selects picture mode, [HIGHBRIGHT], [STANDARD], 
[sRGB], [CINEMA], [AMBIENT1], [AMBIENT2]. See page 18.
  HIGHBRIGHT: for moving images such as DVD.
  STANDARD: for images.
  sRGB: for text based images.
  CINEMA: for movies.
  AMBIENT1 and AMBIENT2: activate auto dimming
  function. See page 18. 
 ASPECT button
Selects picture aspect, [FULL], [WIDE], [DYNAMIC], [1:1], 
[ZOOM] and [NORMAL]. See page 17.
 SOUND button
Artifi cial surround sound for internal/external speakers.
Audio out is disabled when surround is set to ON.
 KEYPAD
Press buttons to set and change passwords, change channel 
and set REMOTE ID.
\b ENT button*2
	 DISPLAY button
Turns on/off the information OSD. See page 18.

 MENU button
Turns on/off the menu mode.
 AUTO SETUP button
Enters auto setup menu. See page 20

 EXIT button
Returns to previous menu within OSD menu.
 UP/DOWN button
Acts as 
  button to move the highlighted area up or down 
to select adjustment items within OSD menu.
Small screen which adjusted “PIP” mode moves up or down.
 MINUS/PLUS (-/+) button
Increases or decreases the adjustment level within OSD 
menu settings.
Small screen which adjusted “PIP” mode moves left or right.
 SET button
Makes selection.
 VOLUME UP/DOWN button
Increases or decreases audio output level.
 CH UP/DOWN button*2
 GUIDE button*2
 MUTE button
Turns on/off mute function.
 STILL button
ON/OFF button:  Activates/deactivates still picture mode.
STILL CAPTURE button:  Captures still picture. 
						

							
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English
Operating Range for the Remote 
Control
Point the top of the remote control toward the LCD monitor’s 
remote sensor during button operation.
Use the remote control within a distance of about 7 m (23 ft.) 
from remote control sensor or at a horizontal and vertical 
angle of within 30° within a distance of about 3.5 m (10 ft.).
 PIP (Picture In Picture) button
ON/OFF button:  Toggle switches between PIP, POP, 
PICTURE BY PICTURE-ASPECT and PICTURE BY 
PICTURE-FULL. See page 22.
INPUT button:  Selects the “picture in picture” input signal.
CHANGE button:  Replaces to the main picture and sub 
picture.
Sub pictureD VIDVID PO RTDPORTVG AVGAHDM IHDMIDVD /H DDVD/HDSC AR TSCARTVID EO 1VIDEO1VID EO 2VIDEO2S-V ID EOS-VIDEO
Main picture
D VIDVIN oNoYesYe sY esYe sN oNoYesYe sY esYe sY esYe sY esYe sY esYe sD PO RTDPORTYesYe sN oNoYesYe sY esYe sY esYe sY esYe sY esYe sY esYe sY esYe sV G AVGAYesYe sY esYe sN oNoYesYe sN oNoNoNoYesYe sN oNoNoNoHDM IHDMINoNoYesYe sY esYe sN oNoYesYe sY esYe sY esYe sY esYe sY esYe sD VD /H DDVD/HDYesYe sY esYe sN oNoYesYe sN oNoNoNoYesYe sN oNoNoNoSC AR TSCARTYesYe sY esYe sN oNoYesYe sN oNoNoNoNoNoNoNoNoNoVID EO 1VIDEO1YesYe sY esYe sY esYe sY esYe sY esYe sN oNoNoNoNoNoNoNoVID EO 2VIDEO2YesYe sY esYe sN oNoYesYe sN oNoNoNoNoNoNoNoNoNoS-V ID EOS-VIDEOYesYe sY esYe sN oNoYesYe sN oNoNoNoNoNoNoNoNoNo
 REMOTE ID button
Activates REMOTE ID function.
 MTS button*2
 AUDIO INPUT button
Selects audio input source [IN1], [DPORT], [HDMI], 
[OPTION]*
1.
  button
Activates closed captioning.
Note: VIDEO1, VIDEO2, S-VIDEO inputs only.
*1: The product you purchased may not have this feature.
*2: This button’s action depends on which option board you use.
  Refer to the option board’s manual for further information.
Caution:   Important, the remote control 
system may not function 
when direct sunlight or strong 
illumination strikes the remote 
control sensor or when there is 
an object in the path.
Handling the remote control
•  Do not subject to strong shock.
•  Do not allow water or other liquid to splash  the remote control. If the remote control gets 
wet, wipe it dry immediately.
•  Avoid exposure to heat and steam.
•  Other than to install the batteries, do not open the remote  control. 
						

							
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1. Determine the installation location
CAUTION: Installing your LCD monitor must be done by a 
qualifi ed technician. Contact your dealer for more 
information.
CAUTION: 
MOVING OR INSTALLING THE LCD MONITOR 
MUST BE DONE BY TWO OR MORE PEOPLE. 
Failure to follow this caution may result in injury if 
the LCD monitor falls.
CAUTION:  Do not mount or operate the monitor upside 
down, face up or face down. 
CAUTION:  This LCD has a temperature sensor and cooling 
fans, including a fan for the option board.
If the LCD becomes too hot, the cooling fans will 
turn on automatically. 
The fan of option board is active although the 
temperature is lower than normal operating 
temperature for cooling the option board. If the 
LCD becomes overheated while the cooling fan 
is running, a “Caution” warning will appear. If the 
“Caution” warning appears, discontinue use and 
allow the unit to cool. Using the cooling fan will 
reduce the likelihood of early circuit failure and 
may help reduce image degradation and “Image 
Persistance”.
If the LCD is used in an enclosed area or if the 
LCD panel is covered with a protective screen, 
please check the inside temperature of the 
monitor by using the “HEAT STATUS” control 
in the OSD (see page 24). If the temperature is 
higher than the normal operating temperature, 
please turn the cooling fan to ON within the FAN 
CONTROL menu within the OSD (see page 24).
IMPORTANT:  Lay the protective sheet, which was wrapped 
around the LCD monitor when it was 
packaged, beneath the LCD monitor so as not 
to scratch the panel.
2. Install the remote control batteries
The remote control is powered by two 1.5V AA batteries. 
To install or replace batteries:
A.  Press and slide to open the cover.
B.  Align the batteries according to the (+) and (–) indications  inside the case.
C.  Replace the cover.
CAUTION:   Incorrect usage of batteries can result in leaks or 
bursting.  NEC recommends the following battery use:
•  Place “AA” size batteries matching the (+) and (-) signs 
on each battery to the (+) and (-) signs of the battery 
compartment.
•  Do not mix battery brands.
•  Do not combine new and old batteries. This can shorten  battery life or cause liquid leakage of batteries.
•  Remove dead batteries immediately to prevent battery  acid from leaking into the battery compartment.
•  Do not touch exposed battery acid, it may injure skin.
NOTE:  If you do not intend to use the Remote Control for 
a long period of time, remove the batteries.
3. Connect external equipment 
  (See pages 14 and 15)
•  To protect the external equipment; turn off the main power 
before making connections.
•  Refer to your equipment user manual for further  information.
NOTE:  Do not connect/disconnect cables when turning 
on the monitor or other external equipment as this 
may result in a loss of the monitor image.
4. Connect the supplied power cord
•  The equipment should be installed close to an easily 
accessible power outlet.
•  Please fasten power cord to the LCD monitor by attaching  the screw and clamp.
•  Fully insert the prongs into the power outlet socket.  A loose connection may cause image degradation.
NOTE:  Please refer to the “Safety Precautions and 
Maintenance” section of this manual for proper 
selection of AC power cord.
Screw
Clamp
Setup 
						

							
English-13
English
5. Switch on the power of all the attached external equipment
When connected with a computer, switch on the power of the 
computer fi rst.
6. Operate the attached external equipment
Display the signal from the desired input source.
7. Adjust the sound
Make volume adjustments when required.
8. Adjust the screen (See pages 20 and 21)
Make adjustments of the screen display position when 
necessary.
9. Adjust the image (See page 20)
Make adjustments such as backlight or contrast when 
required.
10. Recommended Adjustments
To reduce the risk of the “Image Persistence”, please adjust 
the following items based on the application being used: 
“SCREEN SAVER”, “SIDE BORDER COLOR” (See page 24) 
“DATE & TIME”, “SCHEDULE SETTINGS” (See page 21). 
It is recommended that the “FAN CONTROL” setting 
(See page 24) be turned to ON also. 
						

							
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Connections
NOTE: Do not connect/disconnect cables when turning on the monitor or other ex\
ternal equipment as this may result in a 
loss of the monitor image.
NOTE:  Use an audio cable without a built-in resistor. Using an audio cable with a built-in resistor turns down the sound.
Before making connections:
*  First turn off the power of all the attached equipment and make connections.
*  Refer to the user manual included with each separate piece of equipment.\
Wiring Diagram
Solid lines = video signal 
Dotted lines = audio signal
DVD player
with HDMI out DVD player
VCR or 
DVD Player Stereo Amplifi er
Second monitor*
Computer (Analog) Computer (Digital) DVD player with 
SCART OUT
*: Multiple monitors that are daisy-chained have a limit to the connecta\
ble monitors.
Connected equipment Connecting
terminal Setting in Terminal Mode Input signal name Connecting 
Audio terminal Input button 
in remote control
AV DVI (DVI-D) DVI MODE: DVI-HD DVI AUDIO IN1 DVI
HDMI RAW/EXPAND*
1HDMI HDMI HDMI
VGA (D-Sub) +VIDEO1 D-SUB MODE: SCART SCART AUDIO IN1 DVD/HD VIDEO1 (BNC) - VIDEO1 AUDIO IN1 VIDEOVGA (D-Sub) D-SUB MODE: S-VIDEO S-VIDEO AUDIO IN1 S-VIDEO
VGA (D-Sub) D-SUB MODE: VIDEO VIDEO2 AUDIO IN1 VIDEO
VGA (D-Sub) D-SUB MODE: COMPONENT DVD/HD2 AUDIO IN1 DVD/HD
PC VGA (D-Sub) - VGA AUDIO IN1 VGA
DVI (DVI-D) DVI MODE: DVI-PC DVI AUDIO IN1 DVIDisplayPort - DPORT DPORT DISPLAYPORT HDMI RAW/EXPAND*
1HDMI HDMI HDMI
*1: depend on signal type. 
						

							
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English
Connecting a Personal Computer
Connecting your computer to your LCD monitor will enable you to display \
your computer’s screen image.
Some video cards with a pixel clock over 162MHz may not display an image\
 correctly.
Your LCD monitor displays proper image by adjusting the factory preset ti\
ming signal automatically.

ResolutionScanning frequency Remarks
Horizontal Vertical
640 x 480 31.5 kHz 60 Hz
800 x 600 37.9 kHz 60 Hz
1024 x 768 48.4 kHz 60 Hz
1280 x 768 48 kHz 60 Hz
1360 x 768 48 kHz 60 Hz
1280 x 1024 64 kHz 60 Hz
1600 x 1200 75 kHz 60 Hz Compressed image
1920 x 1080 67.5 kHz 60 Hz Recommended resolution
•   If you use with a Macintosh PowerBook, set “Mirroring” to Off on your PowerBook.
  Refer to your Macintosh’s owner’s manual for more information about your computer’s video output requirements and any  special identifi cation or confi guration your monitor’s image and monitor may require.
•  Input TMDS signals conforming to DVI standards.
•  To maintain display quality, use a cable that conforms to DVI standards.
Connecting a DVD Player or Computer with HDMI out
•   Please use an HDMI cable with HDMI logo.
•   It may take a moment for the signal to appear.
•   Some video cards or drivers may not display an image correctly.
Connecting a Computer with DisplayPort
•   Please use DisplayPort cable with DisplayPort compliance logo.
•   It may take a moment for the signal to appear.
•   Please note that DisplayPort connector does not supply power to the conn\
ected component.
•   Please note that when connecting a DisplayPort cable to a component with\
 a signal conversion adapter, an image may not  appear.
•   Select DisplayPort cables feature a locking function. When removing this\
 cable, hold down the top button to release the lock . 
						

							
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Basic Operation
Power ON and OFF Modes
The LCD monitor power indicator will turn green while powered on and wil\
l turn red or amber while powered off. 
NOTE:  The Main Power Switch must be in the ON position in order to power up th\
e monitor using the remote control or the 
Power Button on the front of the LCD.
Main Power Switch
OFFON
Power Button
Using the remote control
POWER ON Button 
						

							
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English
Picture Aspect
DVI, VGA, DPORT
FULL  1:1  ZOOM  NORMAL
    
HDMI, DVD/HD, SCART, VIDEO1, VIDEO2, S-VIDEO
FULL  WIDE  DYNAMIC  1:1  ZOOM  NORMAL
   
Aspect ratio
of image Unchanged view*3Recommended selection
for picture aspect*3
4:3
NORMAL 
DYNAMIC
Squeeze
FULL
Letterbox
WIDE
*3 Grey areas indicate unused portions of the screen.
NORMAL:  Displays the aspect ratio the same as it is sent 
from the source.
FULL:  Fills entire screen.
WIDE:  Expands a 16:9 letter box signal to fi ll entire screen.
DYNAMIC:  Expands a 4:3 pictures to fi ll the entire screen 
with non-linearity. Some of the outside image area will be cut 
off due to expansion.
1:1:  Displays the image in a 1 by 1 pixel format.
ZOOM
The image can be expanded beyond the active display area. 
The image which is outside of active display area is not 
shown.
ZOOM
ZOOM
Power Indicator
Mode Status Indicator Light
Power ON Green*1
Power OFF
Power consumption under 0.5 W Red
Power Save 
Power consumption under 1 W*
2Amber
Power Standby when “SCHEDULE 
SETTINGS” enabled Green and Amber blink alternately
Diagnosis (Detecting failure) Red Blinking (See Troubleshooting  page 37)
*1  If “OFF” is selected in POWER INDICATOR (page 23), the LED will not light when the  
  LCD monitor is in active mode.
*2  Without any option, with factory settings, VGA input only.
Using Power Management
The LCD monitor follows the VESA approved DPM Display 
Power Management function.
The power management function is an energy saving 
function that automatically reduces the power consumption 
of the display when the keyboard or the mouse has not been 
used for a fi xed period.
The power management feature on your new display has 
been set to the “ON” mode. This allows your display to 
enter a Power Saving Mode when no signal is applied. This 
could potentially increase the life and decrease the power 
consumption of the display.
NOTE:  Depending on the PC and video card used, this 
function may not operate.
NOTE:   It takes about 10 minutes for the monitor to go into 
power management mode when using DVD/HD, 
SCART, VIDEO1, VIDEO2 and S-VIDEO.
Selecting a video source
To view a video source:
Use the input button to set [VIDEO1], [VIDEO2], [S-VIDEO].
Use the COLOR SYSTEM menu to set [AUTO], [NTSC], 
[PAL], [SECAM], [PAL60], [4.43NTSC], according to your 
video format. 
						

							
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Information OSD
The Information OSD provides information such as: Monitor ID, Input Sour\
ce, Picture Size, etc. 
Press the DISPLAY button on the remote to bring up the Information OSD.
 ID number assigned to current monitor*1
 ID number assigned monitor to be controlled via RS-232C*2
 Input Name
 Audio input mode
 Picture aspect
 Input Signal Information
 Sub picture information
*1: “IR CONTROL” should be set “Primary” or “Secondary”\
.
*2: “IR CONTROL” should be set “Primary”.
Picture Mode
DVI, VGA, DPORT 
STANDARD
  sRGB  AMBIENT1  AMBIENT2  HIGHBRIGHT
        
HDMI, DVD/HD, SCART, VIDEO1, VIDEO2, S-VIDEO
STANDARD
  CINEMA  AMBIENT1  AMBIENT2  HIGHBRIGHT
        
AMBIENT Mode
The backlight of the LCD screen can be set to increase or decrease depen\
ding on the amount of ambient light within the room. 
If the room is bright, the monitor becomes correspondingly bright. If th\
e room is dim, then the monitor will dim accordingly. T he 
purpose of this function is to make the viewing experience more comforta\
ble to the eye in a variety of lighting conditions.
NOTE:   When picture mode is set to AMBIENT1 or AMBIENT2, BACKLIGHT, AUTO BRIGHTNESS and BACKLIGHT in 
SCREEN SAVER function are disabled.
Do not cover Ambient light sensor when you use AMBIENT1 or AMBIENT2 in PICTURE MODE.
AMBIENT parameter setting
PICTURE MODE in OSD, select AMBIENT1 or AMBIENT2 and set IN BRIGHT and IN DARK in each mode.
IN BRIGHT: This is the backlight level that the monitor will go up to when the ambi\
ent light level is highest.
IN DARK: This is the level of backlight that the monitor will go down to when the\
 ambient light level is low.
When the AMBIENT function is enabled the Backlight level of the screen changes automatic\
ally according to the lighting 
conditions of the room ( Figure 1).
BACKLIGHT level set
for the monitor to use
when ambient lighting 
level is low.
BACKLIGHT level set for the 
monitor to use when ambient 
lighting level is high.
BACKLIGHT range
Figure 1
dark bright room bright condition
Screen Backlight value by AMBIENT2 mode
IN DARK IN BRIGHT
Screen Backlight value by AMBIENT1 mode
Factory Setting
IN DARK:  BACKLIGHT level set for the monitor to use when ambient lighting level is low.
IN BRIGHT:  BACKLIGHT level set for the monitor to use when ambient lighting level is high.