NEC Vt650 Projector User Manual

							E–35
Setup
Page1 Page2 Page3 Page4
RGB
Video
S-VideoAuto
Auto
Auto
Signal Select

When this feature is turned on, the “No Input” message will
appear if there is no signal present.

This option turns on or off the volume bar when you adjust
the sound volume using VOL+/-(up and down) button.
On: You can increase or decrease the sound vol-
ume with the volume bar on screen.
NOTE: If no adjustments are performed within 3 seconds,
the Volume bar will disappear.
Off: You can increase or decrease the sound vol-
ume without having to use the volume bar.

This option is available on the optional presentation remote
control (PR51KIT) only. This option turns on or off the key-
stone bar when you adjust the keystone using KEYSTONE
+/- button on the optional presentation remote control.
On: You can increase or decrease the level with
the keystone bar on screen.
Off: You can increase or decrease the level with-
out having to use the keystone bar.

Clean Filter: This option turns on or off the “Please clean
the filters” message each time you turn on the projector if
the projector has been used in excess of 100 hours of use.
On: The message to clean the filters will be dis-
played.
Off: The message will not be displayed.
See page E-39 for cleaning the filters. After cleaning the fil-
ters, reset the filter usage back to zero. To reset the filter
usage, see page E-37.

This option allows you to select how long the projector waits
after the last touch of a button to turn off the menu.
The preset choices are Manual, Auto 5 sec, Auto 15
sec, and Auto 45 sec. The Auto 45 sec is the factory
preset.
Manual: The menu can be turned off manually.
Auto 5 sec: The menu will automatically be turned off
in 5 seconds if no buttons are pressed within
5 seconds.
Auto 15 sec: The menu will automatically be turned off
in 15 seconds if no buttons are pressed
within 15 seconds.
Auto 45 sec: The menu will automatically be turned off
in 45 seconds if no buttons are pressed
within 45 seconds.Signal Select:

Allows you to choose RGB for an RGB source such as a
computer, or Component for a component video source
such as a DVD player. Normally select Auto and the pro-
jector automatically detects a component signal. However
there may be some component signals that the projector is
unable to detect. If this is the case, select Component.
Select “Scart” for the European Scart.

This feature enables you to select composite video standards
manually. Normally select Auto.
When you select the video standard for Video and S-Video,
select the video standard from the pull-down menu.
This must be done for Video and S-Video respectively.
Setup
Page1 Page2 Page3 Page4
Orientation Desktop Front
To p
Cinema PositionLogoBackground
[Page2] (Advanced mode)
Auto
NTSC 3.58
NTSC 4.43
PAL
PAL-M
PAL-N
PAL 60
SECAM
Setup
Enables you to set operating options.
[Page1]

This reorients your image for your type of projection.
The options are: front floor projection, rear ceiling projec-
tion, rear floor projection, and front ceiling projection.

This feature selects the vertical position of the image when
viewing video with Cinema aspect ratio selected.
When Cinema aspect ratio is selected on earlier models, the
image is displayed with black borders on the top and bot-
tom. You can select the vertical position among three op-
tions:
Top: Image position is at the top with a black bor-
der on bottom.
Center: Image position is at the center with black
borders on top and bottom.
Bottom: Image position is at the bottom with a black
border on top.

Use this feature to display a black/ blue screen or logo when
no signal is available. 
						

							E–36
[Page 4] (Advanced mode)
Setup
Page1 Page2 Page3 Page4
Default Source Select
Communication SpeedSelect
19200bps
Control Panel Key LockClear Lamp Hour MeterClear Filter Usage
Default Source RGB
Unlock
[Page 3] (Advanced mode)
Setup
Page1 Page2 Page3 Page4
Auto Adjust
Auto Start
Power Management
Keystone Save
On Off
On Off
On OffPower Off ConfirmationOn OffOn Off

When “Auto Adjust” is set to “On”, the  projector automati-
cally determines the best resolution for the current RGB in-
put signal to project an image using NEC’s Advanced
AccuBlend Intelligent Pixel Blending Technology.
The image can be automatically adjusted for geometry and
stability; “Horizontal Position”, “Vertical Position”, “Clock”
and “Phase”.
On: Automatically adjusts image “Horizontal
Position”, “Vertical Position”, “Clock” and
“Phase”.
Off: User can adjust the image display functions
(“Horizontal Position”, “Vertical Position”,
“Clock” and “Phase”) manually.

Turns the projector on automatically when the power cable
is inserted into an active power outlet. This eliminates the
need to always use the “Power” button on the remote con-
trol or projector cabinet.

When this option is on and there is no RGB input for five
minutes or more, the projector will automatically turn itself
off.
NOTE:This feature does not work with Video or S-Video
sources.

This option determines whether a confirmation dialog for
turning off the projector will appear or not.
NOTE: When the confirmation message is displayed, you
must be in the Projector mode to operate your projector us-
ing the remote control. If not, press the PJ button on the
remote control to change your projector to the Projector
mode. The button lights to indicate that you are in the Pro-
jector mode.

This option enables you to save your current keystone set-
tings. Saving your change once affects all sources. The
changes are saved when the projector is off.
You can set the projector to default to any one of its inputs
each time the projector is turned on.
Last: Sets the projector to default to the previous
or last active input each time the projector
is turned on.
Auto: Searches for an active source in order of
RGB → Video → S-Video and displays the
first found source.
Select: Displays the selected source input every
time the projector is started up. Select an
input from the pull-down menu.

This feature sets the baud rate of the PC Control port (Mini
DIN 8 Pin).
it supports data rates from 4800 to 19200 bps.
The default is 19200 bps. Select the appropriate baud rate
for your equipment to be connected.

This option turns on or off the Control Panel Key Lock func-
tion.
NOTE:
•When the cabinet buttons are not locked, “Control Panel
Key Lock - Unlock” will be displayed. When the cabinet
buttons are locked, “Control Panel Key Lock - Lock”
will be displayed.
•This Control Panel Key Lock does not affect the remote
control and the PC Control functions.
Setup
Page1 Page2 Page3 Page4
Default Source Select
Communication SpeedSelect
19200bps
Control Panel Key LockClear Lamp Hour MeterClear Filter Usage
Default Source RGB
Unlock 
						

							E–37
NOTE:The progress indicator shows the percentage of remain-
ing bulb life.The value informs you of the amount of lamp and
projector usage respectively. To lock the cabinet buttons:
1) Use the Select 
 or  button to select “Control Panel
Key Lock”  and press the ENTER button. The submenu
will be displayed.
2) Use the Select 
 or  button to select “Lock” and press
the ENTER button. The following confirmation screen
will be displayed.
3) Use the Select 
 or  button to select “Ye s” and press
the ENTER button.
The display will be changed to “Control Panel Key Lock -
Lock” and be returned to the previous menu screen.
NOTE: When “No” is selected and the ENTER button is
pressed, the displayed will not be changed and will be re-
turned to the previous menu screen.
To unlock the cabinet buttons:
1) Use the Select 
 or  button on the remote control to
select “Control Panel Key Lock” and press the ENTER
button on the remote control. The submenu will be dis-
played.
2) Use the Select 
 or  button on the remote control to
select “Unlock” and press the ENTER button on the re-
mote control. This change will take effect immediately.
NOTE:
•The confirmation screen will not be displayed.
•When the cabinet buttons are locked, pressing and hold-
ing the CANCEL button for about 10 seconds will change
the setting from Locked to Unlocked.

Resets the lamp clock back to zero. Selecting this option
displays submenu for a confirmation. To reset the lamp us-
age hour meter, use the 
 or  button to select “Ye s”.
NOTE: The projector will turn off and go into standby mode after
2100 hours (up to 3100 hours in Eco mode) of service. If this hap-
pens, press the “Help” button on the remote control for ten sec-
onds to reset the lamp clock back to zero. Do this only after replac-
ing the lamp.

Resets the filter usage back to zero. Selecting this option
displays submenu for a confirmation. To reset the filter us-
age hour, use the 
 or  button to select “Ye s”.
Information
Displays the status of the current signal and lamp usage. This
dialog box has three pages. The information included are as fol-
lows:
 [Page 1]
 Source Index
 Input Terminal
 Horizontal Frequency
 Vertical Frequency
 Sync Polarity
 [Page 2]
 Signal Type
 Video Type
 Sync Type
 Interlace [Page 3]
 Remaining Lamp Time (%)*
 Lamp Hour Meter (H)
 Projector Usage
 Filter Usage
* When the remaining lamp time
reaches 0, the Remaining
Lamp Time bar indicator
changes from 0% to 100 Hours
and starts counting down.
If the remaining lamp time
reaches 0 hours, the projector
will not turn on regardless of
whether the lamp mode is set
to Normal or Eco.
Lock
Are you sure ?
  Yes
  No
Setup
Page1 Page2 Page3 Page4
Default Source Select
Communication SpeedSelect
19200bps
Control Panel Key LockClear Lamp Hour MeterClear Filter Usage
Default Source RGB
UnlockLock
Unlock 
						

							E–38
MENU
ENTERCANCELSELECT
POWER STATUS
ON/OFFSOURCE
AUTO  ADJUST1
5. After you install a new lamp, select [Advanced Menu] →
[Projector Options]→[Setup]→[Page 4]→[Clear Lamp Hour
Meter] to reset the lamp usage hours.
NOTE: When the lamp exceeds 2100 hours (up to 3100 hours in
Eco mode) of service, the projector cannot turn on and the menu
is not displayed. If this happens, press the Help button on the
remote control for a minimum of 10 seconds while in standby
mode. When the lamp time clock is reset to zero, the STATUS
indicator goes out.
4. MAINTENANCE
This section describes the simple maintenance procedures you
should follow to replace the lamp and clean the filters.
Replacing the Lamp
After your lamp has been operating for 2000 hours (up to 3000
hours in Eco mode) or longer, the “Status” light in the cabinet
will go on and the message will appear. Even though the lamp
may still be working, replace it at 2000 (up to 3000 hours in Eco
mode) hours to maintain optimal projector performance.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been
used. It will be extremely hot. Turn the projector off, wait
60 seconds, and then disconnect the power cable. Allow at
least one hour for the lamp to cool before handling.
•DO NOT REMOVE ANY SCREWS except the lamp
cover screw and two lamp case screws. You could re-
ceive an electric shock.
•
The projector will turn off and go into stand by mode after
2100 (up to 3100 hours in Eco mode) hours of service. If
this happens, be sure to replace the lamp. If you continue to
use the lamp after 2000 hours (up to 3000 hours in Eco mode)
of use, the lamp bulb may shatter, and pieces of glass may
be scattered in the lamp case. Do not touch them as the pieces
of glass may cause injury. If this happens, contact your NEC
dealer for lamp replacement.
To replace the lamp:
1. Loosen the lamp cover screw until the screwdriver goes into
a freewheeling condition and remove the lamp cover. The
lamp cover screw is not removable.
2. Loosen the two screws securing the lamp housing until the
screwdriver goes into a freewheeling condition. The two
screws are not removable.
Remove the lamp housing by pulling out the handle.
NOTE: There is an interlock on this case to prevent the risk
of electrical shock. Do not attempt to circumvent this inter-
lock.3. Insert a new lamp housing until the lamp housing is plugged
into the socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp
(VT50LP).
Order this from your NEC dealer.
Secure it in place with the two screws.
Be sure to tighten the screws.
4. Reattach the lamp cover.
Tighten the lamp cover screw.
Be sure to tighten the screw.
MENTERCANCELSELECT
POWER STATUS
ON/OFFSOURC
1
MENTERCANCELSELECT
POWER STATUS
OSOURC
2
MENU
ENTERCANCELSELECT
POWER STATUSSOURCE
AUTO ADJUST
2
MENU
ENTERCANCELSELECT
POWER STATUS
ON/OFFSOURCE
AUTO  ADJUST
1
MENU
ENTERCANCELSELECT
POWER STATUSSOURCE
AUTO ADJUST2
1
MENU
ENTERCANCELSELECT
POWER STATUS
ON/OFFSOURCE
AUTO ADJUST7
ME
ENTERCANCELSELECT
POWER STATUS
ON/OFFSOURCE
3
2
Interlock 
						

							E–39
Cleaning or Replacing the Filters
The air-filter sponge keeps the inside of the VT650 Projector
free from dust or dirt and should be cleaned after every 100 hours
of operation (more often in dusty conditions). If the filter is dirty
or clogged, your projector may overheat.
CAUTION
•Turn off the power and unplug the projector before
replacing the filter.
•Only clean the outside of the filter cover with a
vacuum cleaner.
•Do not attempt to operate the projector without a
filter cover.
•Your projector will not operate unless the filter cover
is installed correctly.
To clean the air-filter:
When “Clean Filter” option is turned on, the “Please clean the
filters” message will be displayed each time the projector is turned
on after it has been used in excess of 100 hours. Should this
message appear, clean the filters.
•The message can be turned on or off using the “Menu” - “Fil-
ter Clean Message” option on the Setup menu. See page E-
35.
•After cleaning the filters and resetting the filter usage time
back to zero, the message will not be displayed.
See page E-37 for resetting the filter usage time.
Vacuum the filter-through the filter cover.
To replace the air-filter:
1. Remove the filter cover by pushing up on the catch of the
cover  until you feel it detach.
2. Reinstall the new filter cover.
NOTE: Do not detach the sponge from the filter cover. Do not
wash the filter cover with soap and water. Soap and water will
damage the filter membrane. Before replacing the filter cover,
remove dust and dirt from the projector cabinet. Keep out dust
and during filter replacement.
NOTE: When you replace the lamp, it is also wise to replace the
filters. The filters come in the same package with your replace-
ment lamp.
AU
T
O
 AD
J
US
T
RGB
INPUT
OUTPUTAUD
IN
OUT
PC-CONTROLS-VIDEOVID
1122
AUTO  ADJUST
RGB
INPUT
OUTPUTAUD
IN
OUT
PC-CONTROL
S-VIDEO
VID
1
22
1
MENUCANCELS
E
L
E
C
TS
O
U
R
C
EA
U
T
O
 A
D
J
U
S
T
RGB
INPUT
OUTPUTAUD
IN
OUT
PC-CONTROL
S-VIDEO
VID 
						

							E–40
5. TROUBLESHOOTING
This section helps you resolve problems you may encounter while setting up or using the projector.
Standby
Cooling down
Lamp in Normal mode
Lamp in Eco mode
One minute after lamp is turned on
Retrying to turn on lamp
Lamp has reached its end of life
(2000 hours or over: Normal mode)
(3000 hours or over: Eco mode)
Lamp life has reached its end of life
(2100 hours or over: Normal mode)
(3100 hours or over: Eco mode)
Lamp or filter cover error (3 locations)
Temperature error
Fan error
Lamp error
Power/ Status Light Messages
Common Problems & Solutions
Condition
Does not turn on
No picture
Image isn’t square to the
screen
Picture is blurred
Image is scrolling vertically,
horizontally or both
Remote control does not
work
Status indicator is lit or
blinking
Cross color in RGB mode•Check that the power cable is plugged in and that the power button on the projector cabinet or the
remote control is on.
•Ensure that the lamp cover is installed correctly. See page E-38.
•Check to see if the projector has overheated or the lamp usage exceeds 2100 hours (3100 hours in
Eco mode). If there is insufficient ventilation around the projector or if the room where you’re present-
ing is particularly warm, move the projector to a cooler location.
•Use the menu to select your source (Video, S-Video or RGB). See page E-31.
•Ensure your cables are connected properly.
•Use menus to adjust the brightness and contrast. See page E-31.
•Remove the lens cap.
•Reset the settings or adjustments to factory preset levels using the Factory Default on the Image
Options Menu. See page E-33.
•Reposition the projector to improve its angle to the screen. See page E-28.
•Use the Keystone on the Image Options Menu to correct the trapezoid distortion. See page E-31.
•Adjust the focus. See page E-27.
•Reposition the projector to improve its angle to the screen. See page E-28.
•Ensure that the distance between the projector and screen is within the adjustment range of the lens.
See page E-17.
•Use menus or Source button on the remote control or the cabinet to select the source you want to
input.
•Install new batteries. See page E-13.
•Make sure there are no obstacles between you and the projector.
•Stand within 22 feet (7 m) of the projector. See page E-13.
•Make sure that you are in the Projector mode or the PJ button lights in red. If not, press the PJ button.
•See the Power/ Status Light messages above.
•If Auto Adjust is off, turn it on. If Auto Adjust is on, turn it off and balance the image with the Position
and Clock Adjust on the Advanced Options Menu. See page E-33.
Problem
Steady orange
Blinking green
Steady green
Steady green
Blinking green
Steady green
Steady green
Steady orange
Steady orange
Steady orange
Steady orange
Steady orange–
–
–
Steady green
Depending Lamp mode
Blinking orange
Steady red
Steady red
Blinking red (1 sec interval)
Blinking red (4 sec interval)
Blinking red (8 sec interval)
Blinking red (12 sec interval)–
Blinks green for 60 seconds
–
–
Do not turn off the projector during this
condition.
The projector retries 3 times at an in-
terval of 15 sec for max. 45 sec)
Message appears on screen during
this condition. The projector reaches
its end of life. Please replace the lamp
as soon as possible
The projector is in standby mode and
cannot be turned on.
The projector is in standby mode and
cannot be turned on.
The projector is in standby mode and
cannot be turned on.
The projector is in standby mode and
cannot be turned on.
The projector is in standby mode and
cannot be turned on.
Power Indicator Status Indicator Note
Check These Items 
						

							E–41
6. SPECIFICATIONS
This section provides technical information about the VT650 Projector ’s performance.
Model Number VT650
Optical
LCD Panel 0.9 ” p-Si TFT active-matrix with Micro Lens Array 1024 
768 dots
Lens Manual zoom, manual focus F1.7 – 2.0    f=33.5  – 40.2 mm
Lamp 160W NSH lamp (130W in Eco mode) The lamp is warranted for 2000 hours of operation time within 6 months.
Image Size 25  – 300 inches (0.64  – 7.62 m) diagonal
Projection Distance 3.5  – 36.6 ft (1.1  – 11.2 m)
Electrical
Inputs Video (NTSC / PAL / PAL-M / PAL-N / PAL60 / SECAM / NTSC4.43)
Horizontal Frequency : 15 –100 kHz (RGB : 24 kHz or over)
Vertical Frequency : 50  –120 Hz
Video Bandwidth RGB: 80 MHz
Color Reproduction Full color, 16.7 million colors simultaneously.
Horizontal Resolution 550 TV lines : NTSC / PAL / NTSC4.43 / YCbCr 350 TV lines : SECAM
RGB : 1024 dots horizontal, 768 dots vertical
Power Requirement 100  – 120 / 200  – 240 VAC, 50 / 60 Hz
Input Current 2.6 A (100  –120 VAC) / 1.3A (200  –240 VAC)
Power Consumption 225 W (190 W in Eco)
Mechanical
Dimensions 9.57" (W) 
4.0" (H) 
11.2" (D) / 243 mm (W) 
103 mm (H) 
284 mm (D) (not including lens
and feet)
Net Weight 8.8 lbs / 3.9 kg
Environmental ConsiderationsOperational Temperatures: 32 ˚ –  95 ˚F (0 ˚ to 35 ˚C), 20  – 80% humidity (non-condensing)
Storage Temperatures: 14 ˚ –  122 ˚F (-10 ˚ to 50 ˚C), 20  – 80% humidity (non-condensing)
Regulations UL Approved (UL 1950, CSA 950) Meets DOC Canada Class B requirements
Meets FCC Class B requirements
Meets AS/NZS3548 Class B
Meets EMC Directive (EN55022, EN55024, EN61000-3-2, EN61000-3-3)
Meets Low Voltage Directive (EN60950, TUV GS Approved)
We provide more information about our projectors through the World Wide Web at http://www.nec-pj.com/
LCD panels are inherently susceptible to bad pixels.The LCD panel may have pixel failures at the rate of 0.01%or less.
The specifications are subject to change without notice. 
						

							E–42
Cabinet Dimensions
Unit = mm (inch)
VT650
RGB
INPUT
OUTPUTAUDIO
IN
IN OUTOUT
PC-CONTROL S-VIDEO VIDEO
MENU
ENTERCANCEL
SELECT
POWER STATUS
ON
/STAND BY
SOURCE AUTO  ADJUST
48.9 (1.93")
14 (0.55")
102.5 (4.03")
283.6 (11.17") 12.88 (0.51")
243.1 (9.57")
33.25
(1.31")
Lens centerLens center 
						

							E–43
51423
10
11 12 13 14 156 978
D-Sub Pin Assignments
Mini D-Sub 15 Pin Connector
Pin No. RGB Signal (Analog) YCbCr Signal
1 Red Cr
2 Green or Sync on Green Y
3 Blue Cb
4 Ground
5 Ground
6 Red Ground Cr Ground
7 Green Ground Y Ground
8 Blue Ground Cb Ground
9 No Connection
10 Sync Signal Ground
11
12 Bi-directional DATA (SDA)
13 Horizontal Sync or Composite Sync
14 Vertical Sync
15 Data Clock
Signal Level
Video signal : 0.7Vp-p (Analog)
Sync signal : TTL level 
						

							E–44
Compatible Input Signal List
Signal Resolution Frequency H. Refresh Rate Dot Clock
( Dots ) ( kHz ) ( Hz ) ( MHz )
NTSC–15.734 60 -
PAL–15.625 50 -
SECAM 768
576 15.625 50 -
VESA 640
480 31.47 59.94 25.175
IBM 640
480 31.47 60 25.175
MAC 640
480 31.47 60 25.175
MAC 640
480 34.97 66.67 31.334
MAC 640
480 35 66.67 30.24
VESA 640
480 37.86 72.81 31.5
VESA 640
480 37.5 75 31.5
IBM 640
480 39.375 75 31.49
VESA 640
480 43.269 85.01 36
IBM 720
350 31.469 70.09 28.322
VESA 720
400 37.927 85.04 35.5
IBM 720
350 39.44 87.85 35.5
IBM 720
400 39.375 87.7 35.5
VESA 800
600 35.16 56.25 36
VESA 800
600 37.879 60.32 40
VESA 800
600 48.077 72.19 50
VESA 800
600 46.88 75 49.5
VESA 800
600 53.674 85.06 56.25
MAC 832
624 49.725 74.55 57.283
VESA 1024
768 35.5 43 Interlaced 44.9
VESA 1024
768 48.363 60 65
VESA 1024
768 57.476 70.07 75
IBM 1024
768 58.131 72.03 79
MAC 1024
768 60.241 74.93 80
VESA 1024
768 60.023 75.03 78.75
VESA 1024
768 68.677 85 94.5
# VESA 1152
864 67.5 75 108
# MAC 1152
870 68.681 75.06 100
# SUN 1152
900 61.796 65.95 92.94
# SGI 1152
900 71.736 76.05 105.6
# VESA 1280
960 60 60 108
# SGI 1280
1024 63.9 60 107.35
# VESA 1280
1024 63.981 60.02 108
# MAC 1280
1024 64.31 60.38 107
# MAC 1280
1024 69.9 65.2 118.5
# HP 1280
1024 78.125 72.01 135
# SUN 1280
1024 81.13 76.11 135
# VESA 1280
1024 79.976 75.03 135
# VESA 1280
1024 91.146 85.02 157.5
#HDTV (1080i)(1125i)1920
1080 33.75 60 Interlace 74.25
#HDTV (720p)(750p)1280
720 45 60 Progressive 74.25
#SDTV (480p)(525p)–31.47 59.94 Progressive 27
#SDTV (480i)(525i)–15.73 59.9 Interlace–
#VESA1600
1200 75.0 60 162
#VESA1600
1200 81.3 65 175.5
#VESA1600
1200 87.5 70 189
#VESA1600
1200 93.75 75 202.5
#: Images in above flagged with # are compressed with Advanced AccuBlend.
NOTE1: Some composite sync signals may not be displayed correctly.
NOTE2: Signals other than those specified in the table above may not be displayed correctly. If this should happen, change the refresh rate or resolution on
your PC.  Refer to Display Properties help section of your PC for procedures.
NOTE3: UXGA can be supported for separate sync signal only.