Dwin TransVision 3 Plus Multimedia Projector Logo

Related Topics:

pistol pete Posted on Mar 25, 2012

I have a transvision 3 that starts up and runs fine. at some undetermined point the picture will flash back and forth from snow to the clear picture????

1 Answer

Anonymous

Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

  • Contributor 1 Answer
  • Posted on Nov 20, 2012
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

Joined: Nov 20, 2012
Answers
1
Questions
0
Helped
98
Points
1

Prestopete here...no kidding..I have the same problem...Can't find any cables. I do have a source for bulbs if you need.

1 Related Answer

icansolve

Kevin Worrell

  • 45 Answers
  • Posted on Nov 27, 2008

SOURCE: 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.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
2answers

My keep right furnace not working getting 3 green flashes

you have a bad pressure switch.
Soft lockout, furnace control error, 1 hour delay before unit will self try. If code repeats immediately following power reset, then replace switch.
3 Flashes Pressure switch open when should be closed on single stage models. Low pressure switch open when should be closed on 2 stage
power reset is turning the power off to the unit for a minute then back on.
Hope this helps you and isn't as clear as mud :)
0helpful
1answer

Start and runs for 3 min then stop

Try running it with a loose fuel cap. If it now runs fine find and clear the vent hole in the cap.

0helpful
1answer

I have a Dwin TransVision 4 that is not working. It started out with us being able to watch a movie for about an hour and the bulb shutting down. I finally ordered a bulb from Dwin (at 458.00!!) and...

honestly it sounds as if a capasitor is overheating and once it overheats the machine is shutting off.... I myself would be able to look at it and see if this was correct or not. i am not sure how familliar you are with these types of things, probably best to take it in and tell them exactly what is wrong...
0helpful
1answer

On my 36in sony the picture goes in and out..from picture to black back and forth constiantly..im just clue less

a picture that blinks in & out every few seconds then it could be a bad tube.
I know the older models the picture would flash in and out with snow etc. that was a tuner problem.
haven't worked on very many sony wega's, maybe another tech here has a better ans.




6helpful
2answers

The picture went from clear to snow, but the sound remained clea

Flyback is going out in this unit and would cost $120 for a new flyback if I were to repair it for you. So you have two choices have it repaired on recycle it! The repair these days on TUBE tv's are not very cheap because of having to find parts for them. Rulds2008

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

0helpful
1answer

Horizontal lines/"snow"

it sounds as iff it the arial connections ?? are the problem check the connections you may need new cable? use 75 ohms cable
0helpful
1answer

Picture becomes unstable after turning it on (lack of color,

The problem is with overheating!. after a few years the fans accumulate dust and "stuff" and don't work as well. Get a can of compressed air and blow out all the ports and fans. I take the cover off and with everything cool, I blow out all the internal fans also. The 3 big fans on the back are easy to remove and clean and get spinning again. Usually this fixes the issue for several months but eventually, professional cleaning may be needed at DWIN.
5helpful
1answer

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.
0helpful
1answer

Video then Black

the colorwheel is going bad and needs replacing.
2helpful
1answer

Degrading picture with my Dwin projector

the colorwheel is going bad and needs replacing. the colorwheel needs to spin fast enough to sync up with the dmd chip. if it cannot, the pic goes bad then off. the flashing is the colorwheel trying to catch up.
Not finding what you are looking for?

108 views

Ask a Question

Usually answered in minutes!

Top Dwin Office Equipment & Supplies Experts

k24674

Level 3 Expert

8093 Answers

Brad Brown

Level 3 Expert

19187 Answers

ADMIN Andrew
ADMIN Andrew

Level 3 Expert

66931 Answers

Are you a Dwin Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...