NEC Vt670k Projector User Manual
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3. Loosen the two screws securing the lamp housing until the phillips screwdriver goes into a freewheelingcondition. The two screws are not removable.
Remove the lamp housing by holding it.
6. Maintenance
NOTE: There is an interlock on this case to prevent the risk of electrical shock. \
Do not attempt to circumvent this interlock.
4. 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 VT75LP (VT670/VT470) or...](http://img.usermanuals.tech/thumb/54/92456/w300_nec-vt670k-manual_d-60.png "Page 61
54
3. Loosen the two screws securing the lamp housing until the phillips screwdriver goes into a freewheelingcondition. The two screws are not removable.
Remove the lamp housing by holding it.
6. Maintenance
NOTE: There is an interlock on this case to prevent the risk of electrical shock. \
Do not attempt to circumvent this interlock.
4. 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 VT75LP (VT670/VT470) or...")
54 3. Loosen the two screws securing the lamp housing until the phillips screwdriver goes into a freewheelingcondition. The two screws are not removable. Remove the lamp housing by holding it. 6. Maintenance NOTE: There is an interlock on this case to prevent the risk of electrical shock. \ Do not attempt to circumvent this interlock. 4. 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 VT75LP (VT670/VT470) or...
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6. Maintenance
6. Finally, select the menu → [Default] → [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 menuis not displayed. If this happens, do the following while in standby con\
dition to clear values for the Remaining Lamp Time and the
Lamp Hour Meter: For VT670/VT470 press the HELP button on the remote control for a minimu\
m of 10 seconds.
For VT570/VT47 press and...](http://img.usermanuals.tech/thumb/54/92456/w300_nec-vt670k-manual_d-61.png "Page 62
55
6. Maintenance
6. Finally, select the menu → [Default] → [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 menuis not displayed. If this happens, do the following while in standby con\
dition to clear values for the Remaining Lamp Time and the
Lamp Hour Meter: For VT670/VT470 press the HELP button on the remote control for a minimu\
m of 10 seconds.
For VT570/VT47 press and...")
55 6. Maintenance 6. Finally, select the menu → [Default] → [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 menuis not displayed. If this happens, do the following while in standby con\ dition to clear values for the Remaining Lamp Time and the Lamp Hour Meter: For VT670/VT470 press the HELP button on the remote control for a minimu\ m of 10 seconds. For VT570/VT47 press and...
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56 7. Appendix Troubleshooting This section helps you resolve problems you may encounter while setting up or using the projector. Indicator Messages Power Indicator Indicator Condition Projector Condition Note Off Blinking light Steady light Green Orange Green Orange 0.5 sec On, 0.5 sec Off 2.5 sec On, 0.5 sec Off 0.5 sec On, 0.5 sec Off The main power is off The projector is getting ready to turn on. Off Timer is enabled. The projector is cooling down. The projector is turned on. The projector is in...
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7. Appendix
Common Problems & Solutions (See also Power/Status/Lamp Indicator on page 56 .)
Does not turn on
Will turn off
No picture
Picture suddenly
becomes dark
Color tone or hue is
unusual
Image isn’t square to
the screen
Picture is blurred
Image is scrolling
vertically, horizontally
or both
Remote control does
not work
Indicator is lit or
blinking
Cross color in RGB
mode •
Check that the power cable is plugged in and that the power button on th\
e projector cabinet or the remote
control is on....](http://img.usermanuals.tech/thumb/54/92456/w300_nec-vt670k-manual_d-63.png "Page 64
57
7. Appendix
Common Problems & Solutions (See also Power/Status/Lamp Indicator on page 56 .)
Does not turn on
Will turn off
No picture
Picture suddenly
becomes dark
Color tone or hue is
unusual
Image isn’t square to
the screen
Picture is blurred
Image is scrolling
vertically, horizontally
or both
Remote control does
not work
Indicator is lit or
blinking
Cross color in RGB
mode •
Check that the power cable is plugged in and that the power button on th\
e projector cabinet or the remote
control is on....")
57 7. Appendix Common Problems & Solutions (See also Power/Status/Lamp Indicator on page 56 .) Does not turn on Will turn off No picture Picture suddenly becomes dark Color tone or hue is unusual Image isn’t square to the screen Picture is blurred Image is scrolling vertically, horizontally or both Remote control does not work Indicator is lit or blinking Cross color in RGB mode • Check that the power cable is plugged in and that the power button on th\ e projector cabinet or the remote control is on....
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7. Appendix
If there is no picture, or the picture is not displayed correctly.
• Power on process for the projector and the PC.
Be sure to connect the RGB cable between the projector and the computer before turning on the computer.
There are some notebook PCs, which do not output signal unless there is a projector or monitor conn\
ected first.
NOTE: You can check the horizontal frequency of the current signal in the projector’s menu under Information. If it reads
“0kHz”, this means there is no...](http://img.usermanuals.tech/thumb/54/92456/w300_nec-vt670k-manual_d-64.png "Page 65
58
7. Appendix
If there is no picture, or the picture is not displayed correctly.
• Power on process for the projector and the PC.
Be sure to connect the RGB cable between the projector and the computer before turning on the computer.
There are some notebook PCs, which do not output signal unless there is a projector or monitor conn\
ected first.
NOTE: You can check the horizontal frequency of the current signal in the projector’s menu under Information. If it reads
“0kHz”, this means there is no...")
58 7. Appendix If there is no picture, or the picture is not displayed correctly. • Power on process for the projector and the PC. Be sure to connect the RGB cable between the projector and the computer before turning on the computer. There are some notebook PCs, which do not output signal unless there is a projector or monitor conn\ ected first. NOTE: You can check the horizontal frequency of the current signal in the projector’s menu under Information. If it reads “0kHz”, this means there is no...
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59 7. Appendix Specifications This section provides technical information about the VT670/VT570/VT470/VT47 Projectors performance. Model Number VT670/VT570/VT470/VT47 Optical LCD Panel 0.7 p-Si TFT active-matrix (with Micro Lens Array on VT670 only) Resolution VT670/VT570: 1024 768 pixels* native, up to UXGA with Advanced AccuBlend VT470: 800 600 pixels* native, up to UXGA with Advanced AccuBlend VT47: 800 600 pixels* native, up to SXGA with Advanced AccuBlend Lens VT670/VT570/VT470: Manual...
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60 7. Appendix Po wer Requirement 100 - 240V AC, 50 / 60 Hz Input Current VT670/VT470: 2.7 - 1.4A (100 - 240V AC) VT570/VT47: 2.1 - 1.2A (100 - 240V AC) Po wer Consumption VT670/VT470: 8W in Standby mode / 250W in Lamp Normal mode / 200W in Lamp Eco mode VT570/VT47: 8W in Standby mode / 190W in Lamp Normal mode / 155W in Lamp Eco mode Mechanical Installation Orientation Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear Dimensions 11.6 (W) 3.7 (H) 10.2 (D) 294mm (W) 93mm (H) 260mm (D) (not...
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61 7. Appendix Cabinet Dimensions LAMP STATUS POWER VIDEO AUTO ADJ. S-VIDEO COMPUTER-1 COMPUTER-2 ON/STAND BY ZOOM FOCUS SELECT AC IN AUDIO OUT AUDIO S-VIDEO IN COMPUTER 2 IN VIDEO IN COMPUTER 1 IN MONITOR OUT PC CONTROLL/MONOR AUDIOL/MONOR AUDIO 112.5 (4.4) 260 (10.2) 20.3 (0.8) 64.6 (2.5) 294 (11.6) 71.5 (2.8) Lens center Lens center Unit: mm (inch) VT670/VT570/VT470
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62 LAMP STATUS POWER VIDEO S-VIDEO COMPUTER ON/STAND BY ZOOM FOCUS SELECT AC IN 112.5 (4.4) 260 (10.2) 20.3 (0.8) 64.6 (2.5) 294 (11.6) 71.5 (2.8) ZOOM AUDIO S-VIDEO INVIDEO IN COMPUTER IN MONITOR OUT PC CONTROLL/MONOR AUTO ADJ. AUDIO Lens center Lens center Unit: mm (inch) VT47 7. Appendix
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63 Mini D-Sub 15 Pin Connector Pin Assignments of D-Sub COMPUTER Input Connector Signal Level Video signal : 0.7Vp-p (Analog) Sync signal : TTL level 51 423 10 11 12 13 14 15 6 97 8 7. Appendix * Only COMPUTER 1 input connector supported on VT670/VT570/VT470. Pin No. RGB Signal (Analog) YCbCr Signal 1 Red Cr 2Green or Sync on Green Y 3Blue Cb 4Ground 5Ground 6Red Ground Cr Ground 7Green Ground Y Ground 8Blue Ground Cb Ground 9No Connection 10 Sync Signal Ground 11 SCART Sync 12 Bi-directional DATA...