20 Most Recent NEC VT47 Multimedia Projector Questions & Answers

If it is a lamp error try this:
When the lamp exceeds 2100 hoursof service, the projector cannot turn on and the manu is not displayed. Do the following:
For VT670/VT470 Press the help button on the remote control for a minimum of ten seconds.

For VT570/VT47 Press and hold the power and the exit buttons on the remote control simultaneously for a minimum of ten seconds. When the lamp time clock is reset to zero, the lamp indicator goes out. Hope this helps! :]

NEC VT47... | Answered on Aug 02, 2017

Below is the manual. go to troubleshooting on pg 56 and you can find out what the flashing LED means. Good Luck!


NEC VT47... | Answered on Aug 31, 2011

1. press menu button
2. select setup
3.go to orientation (This sets your image for your type of projection. The options are:
desktop front projection, ceiling rear projection, desktop rear projection, and ceiling front projection.)

NEC VT47... | Answered on Dec 17, 2010

Sorry but there isn't one - that plastic button is (or it should be) in mesh with the plastic focus ring. To take it out you will have to dismantle the projector. If you're lucky this will be it, otherwise you will have to buy new parts directly from the dealer.

NEC VT47... | Answered on Oct 01, 2010

There is a "freeze" function available on the PR52 remote. Please make sure this is turned off / disabled.

NEC VT47... | Answered on Aug 15, 2010

replace the bulb

NEC VT47... | Answered on Jul 16, 2010


first of all , did you reset the lamp counter? did you clean the dust out of the projector? it may be overheating as well. if the lamp looks ok, you may have just blown the ballast.More likely a faulty ballast. Check connections.if otherwise and you are not able to check it yourself
contact skilled personnel to handle to check the ballast..
Hope this helpout....

NEC VT47... | Answered on Jul 15, 2010

could be bad bulb is it setting in right is coler wheel freeley moving

NEC VT47... | Answered on Apr 14, 2010

Select Menu option locate the selection for STATUS on the menu....you should be able to resent the lamp hours from here and signify manually that you have changed the bulb...hope this helps!!

NEC VT47... | Answered on Mar 11, 2010

I eventually fixed it; just a mechanical problem;I had to use strength to make the ring move again; 5586904.jpg
The arrow shows the direction of my movement; I had to use both hands; be very careful but also be aware that I had to put a lot of strength to manage to unlock it; good luck!

NEC VT47... | Answered on Mar 06, 2010

go into the menu under settings and change the image from ceiling to front.

NEC VT47... | Answered on Jan 06, 2010

Go intp settings and orientation then click on the right orientation. If not go to 'restore factory settings'. Worked for me

NEC VT47... | Answered on Jan 06, 2010

This projector uses UHP metal halide lamp. This type of lamp cannot be tested. Often, when the lamp starts failing , its light will get dimmer before failing completely. Projectors usually display a lamp warning when lamp had passed a certain number of hours use.
Regarding the ignitor circuit, there is not part corresponding to this name. If you are talking about the board connected to the lamp, that is not an igniter, but an high voltage board. The board supplies high voltage of over 1Kwatts to the lamp. This board is tested simply reading voltage input and high voltage out. For safety reasons the test must be done by a training technician.
If you instead are referring to projector start switch as igniter, that is tested reading continuity with a multimeter set on Ohms, and checking if the switch is opening and closing circuit.

NEC VT47... | Answered on Oct 27, 2009

go to your menu find the volume settings. i think your volume is 0 or muted.

NEC VT47... | Answered on Oct 08, 2009

may be a input source problem -
lower the resolution of the laptop you are connectring to this with. 1024 x 768 is the max,

or possibly the bulb is at the end of its life

or the unit is overheating. check the vents to see if there is any dirt or dust. if so, you may need to try to clean out the inside.

NEC VT47... | Answered on Sep 23, 2009

Try adjusting the resolution on you computer. I believe this is a native xga projector (1024 x 768)

NEC VT47... | Answered on Sep 19, 2009

the "try again after one minute" is a trial. if the new lamp doesn't work, the problem lies with the ballast.

NEC VT47... | Answered on Sep 03, 2009

Is the light blinking rapidly or solidly lit?

NEC VT47... | Answered on Aug 31, 2009

The unit needs to be opened and have the fan checked. If it is out of warranty and you are capable you should be able to access the fan quite easily. It may be rubbing against something or it may have contaminants inside and needs to be replaced.

NEC VT47... | Answered on Aug 31, 2009

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