Question about Dwin TransVision 3 Plus Multimedia Projector

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Bulb or power problem?

Our Dwin is about 4 yrs old and suddenly it powers up for about a second or two then turns itself off...lamp never goes on?? is this what happens when we need to replace the bulb or do you think its another problem??

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Re: bulb or power problem?

You have to order it on the website and they are terrible about getting back to you. Worste customer service in the world. Terrible

Posted on Nov 19, 2008

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Replaced bulb yesterday worked fine. Today light will not turn on. projector turns on both lights green for 10 seconds, then power goes red and status blinks green for about 5 seconds, then status light...

green green is power on, normal
then it tries to light the lamp, but it can't so the protection circuit comes activated.
you get red and green blinking

Then it goes to standby, red and off.

so something has happened to the lamp, or lamp ballast power supply.
Take the lamp out and check if all is OK with the 2 terminals in the connector, and the leads to the lamp are intact.

Failing that, I would suspect the ballast lamp power unit

Mar 25, 2011 | Mitsubishi HC1600 Projector

1 Answer

Turns on and calls for replace lamp, I already did it and still calling for replace lamp. Fan turns on and that's it power and lamp lights are on thanks

Projectors keep a lamp life clock to track the age of a bulb. The clock needs to be reset with each bulb that is inserted. Here are the steps with your particular projector:

1)Power on projector
2) Go to "menu"
3) Choose "Options"
4) Choose "Lamp Settings"
5) Choose "Lamp Reset"
6) Select Yes

Certain models require you to hold "Lamp Reset" for a particular amount of time. It could be instantly, 3 seconds, 5 seconds, 10 seconds... Just have to play until it responds.

Once that is reset you should be good.

Mar 08, 2011 | Optoma PRO250X Projector

2 Answers


Bulb timer has expired. Press the left arrow, right arrow and power switch simultaneously for a few seconds. The projector should power up, but this indicates that a new bulb is required and should be fitted as soon as possible, as there is a risk of the old bulb exploding.

Sep 15, 2009 | Multimedia Projectors

1 Answer

Replacment of bulb on dwin transvision 3 plus ceiling mounted

It is fairly simple. Take the unit down as you need to get to the underside. There you will see the retaining screws that hold the cover on. Remove these and open the unit. Inside you will see the bulb and mounting bracket. Off hand I don't remember exactly how it is held in place but there are a number of screws and a lead to disconnect to remove it.

Mar 09, 2009 | Dwin TransVision 3 Plus Multimedia...

2 Answers

Projector turns on but no light or image from lens.

The bulbs do not always look broken when dead. You say it is used often. The life of a bulb is around 1400 hours I believe. This normally equates to a year or two depending on your usage levels. Did you notice your image getting dimmer in the months before it stopped working? This would be a good sign it was in need of replacement. Are the lights flashing very rapidly or blinking slowly? If they are flashing very rapidly this indicated the bulb will not fire and needs replacing.

Jan 16, 2009 | Dwin TransVision 3 Plus Multimedia...

2 Answers


it's time to clean it out. the colorwheel might be going and if it doesn't spin to keep in sync with the dmd chip, the lamp goes out.

Nov 21, 2008 | Dwin TransVision 3 Plus Multimedia...

2 Answers

Blinking status light

Replacing the lamp with an old one was helpful for me. Good news: the projector itself not faulty. Bad news: I have two projectors with the same issue at the same time (the lamps were replaced also at the same time) after only 400 hours of running.

Apr 01, 2008 | NEC VT47 Multimedia Projector

2 Answers

Lamp not lighting

Reset the lamp and try it.

Mar 28, 2008 | NEC VT660 Multimedia Projector

1 Answer

NEC VT47 Blink Sequence but not comming up.

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! :]

Feb 08, 2008 | NEC VT47 Multimedia Projector

1 Answer

Dwin lamp turns off

I design and implement switching power supplies for the commercial lighting industry. I also own a DWiN Transvision and have opened it and worked on it several times. I believe I can answer this question.

The DWIN projectors use a proprietary switching power supply to strike the lamp and keep it burning. The power supply is extremely sophisticated and maintains tight voltage and current tolerances. This is important because the halides in the lamp are damaged by power supply fluctuations. The halides can often be seen in an unfired lamp, they appear as small specks of dirt or tiny beads inside the lamp envelope. When a metal halide lamp is struck, the halides (which are rare earth elements) vaporize and cling to the inner wall of the lamp envelope. The mixture of halide gas in the lamp is what determines the color temperature of the lamp, as well as the accuracy of the lamp across the entire color spectrum.

One of the ways that DWIN is able to deliver such great color is because they use a lamp which delivers this great color across the spectrum, but, as I pointed out earlier, can be damaged by fluctuations.

The power supply contains three switching sections and five references for such things as input and output voltage for each psu section, as well as overcurrent demands from the lamp.

From my experience, your lamp(s) are all exhibiting issues that require replacement.

Sep 25, 2007 | Dwin TransVision 3 Plus Multimedia...

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