20 Most Recent NEC MultiSync MT830 Multimedia Projector Questions & Answers

Hello I am an electronics technician from Washington,DC. Try projectorzone.com they are located in Portland,Oregon I have used them several times. Nate was very helpful. You can find a lamp there for sure.

NEC MultiSync... • Answered on Nov 19, 2010


Can you tell us a little about the problem(s) you may be having?

Thank you

NEC MultiSync... • Answered on Aug 12, 2009

change the lamp even if the old lamp

use original nec remote contro

l6. After you install a new lamp, select the lamp Usage icon and press and hold
the "Power On" button on the remote control for ten seconds to reset the
lamp time clock to zero.
NOTE: If resetting the lamp clock back to zero after 2100 hours of service,
press the "Power Off" (not "Power On") button on the remote control for ten

NEC MultiSync... • Answered on Apr 12, 2009

The ghosting problem is a combination of both the lcds and driver boards in which case neither need to be truely replaced.. They use a specific voltage to transmit data to the lcds.. Each lcd is different and the driver board is programmed by the factory for the EE v.com setting. Unfortunatly with nec, they do not offer a service mode to go in and adjust the ee settings to correct the electrical convergance. So the only way to fix the problem is to replace the lcd with a newer one who wasnt worn out from long term heat.

NEC MultiSync... • Answered on Feb 24, 2009

Their are adjustments on the main video board of the projector for alignment of the three LCD screens, But these should only be made by a qualified professional as they can make it worse if done wrong.

NEC MultiSync... • Answered on Jan 08, 2009

Check to see if the fan is running on the bottom of the unit. If it senses no rpm from the fan, if will shut down to protect the unit.

NEC MultiSync... • Answered on Sep 28, 2008

take a look here: http://www.extremetech.com/article2/0,1697,1049289,00.asp "... The others, however, have lost portions or all of their blue channels. TI's theory is that the shorter wavelength and higher energy of the blue light apparently causes the organic polarizing material in the LCD to get lightburn much faster. TI showed us a damaged LCD panel that controlled blue light transmission, and there was a large spot in the center that was apparently burned out..."

NEC MultiSync... • Answered on Aug 01, 2008

yes i have the MT 800 projector my self you can use Composit connection using the yellow, white, and red RCA wires, or you can use the S-video connector and the white and red audio connections. Or if your skybox has a dvi output you can use a DVI to VGA cable to connect that as well. which ever you use you need to select the same source in the menu of the projector that you are using. S-video, Composit, or RGB (for VGA)

NEC MultiSync... • Answered on Jul 23, 2008

they have a fuse on the power board inside the projector itself, But normally the fuse does not go bad unless their is a dead short in the unit.

NEC MultiSync... • Answered on May 01, 2008

Hi there

This is definatelly a interference from a power cable. If any of your signal cables in the ceiling is closer that 5cm to one of those , you will get interference.

The Company that did the installation should know this and I would suggest you call them and tell them that they should sort it out. They should either move the cables or insulate them by means of conduit.

NEC MultiSync... • Answered on Apr 16, 2008

First I would suggest cleaning the filter on the bottom of the unit where the fan inlet is. Over heating can cause many issues with the video controller in the projector, also shortens the life span of the bulb, always let the unit cool down when turning it off (let the fan run when you turn the power of by top button, never unplug and use the power switch on back. until the fan shuts off.)

NEC MultiSync... • Answered on Mar 16, 2008

go to menu- go to setting -go to colour move slider to right hand direction befor you change the lamp -take care that some vga cabel(((cabel between pc and projector make this fault).then you have to change this cabel and try.

NEC MultiSync... • Answered on Mar 09, 2008

Your statement indicates'there is a fan issue'. It may just require cleaning but may need replacing. Nothing to do with the lamp, unless it has overheated and also needs replacing.

NEC Office... • Answered on Feb 19, 2021

In some such equipment, there could be a problem of overheating of some component or assembly and due to overheating, there might be some sensor which is as a safety measure keeping the equipment off. I had seen some such equipment which stopped working when overheated but worked again when the temperature was normal. My experience belongs to the time when there was nothing like shutdown and we had to manually off the overhead projectors. Anyway, one can check for excessive heating at places and then doubt a particular part of the projector which may require replacement.

NEC Office... • Answered on Dec 08, 2020

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