20 Most Recent Mitsubishi WD-73827 73" HDTV DLP TV - Page 9 Questions & Answers

I have the same problem with a WD 73732. After about an hour fleshtones go blue / purple, and picture flashes. I gutted the set, and ran it on the bench, and found that a sensor on the color wheel (a small external board), acts up when it gets hot. Cooling the board fixed the picture. I'm going to try to find a replacement part, and then make vents in the color wheel cover so it doesn't get so hot in there.

try this site!

http://www.discount-merchant.com/SearchResults.asp?Search=colo%20wheel

have you tried the soft reset this model should have?


WD73827?

SD TECH

if you already check your cables.. and it's still the same.. the problem is probably the VIDEO BOARD

here is a picture of what is a video board..

yes i agree the TV lamp it's done.

a lamp last like arrownd 4000 ans 7000 hours depends on the lamp brand..

i will give you a link that u can used and a video so you can change it it's so easy

good luck!



http://www.discount-merchant.com/SearchResults.asp?Search=Mitsubishi%20WD-73827%2073

CK on your Power Supply board for Bad or Leaky capacitors 1000uf 16v, Look for any that are puffed up on top or vented on top and if there is none bad or leaky- DMD Board Call Encompass Parts 1-800-638-3328

That's exactly what is happening.
There is a "light pipe/tunnel" that is a is basically a mirrored glass conduit between the color wheel and the first lens. It is assembled with a high temp adhesive that holds the four glass sides together.
The adhesive has failed and part of the light tunnel is collapsing blocking a portion of the light energy.
This usually presents as a dark or shaded area along the top, bottom or one or both sides.
solution: the light pipe/tunnel needs to be replaced.
if you take it in for service they will probably replace the entire "DLP engine" (very expensive) If you're not electro mechanically challenged you could do some research and find the part and replace it yourself.
Another possibility is you could re-glue the bad one but this can be rather difficult to do.

If you don't get any messages on the screen and you have never changed the lamp that would be a good place to start.

could be a bad light engine.

Without pulling out my manual, I'm pretty sure that means that your lamp is getting too hot and it's shutting itself off as a safety measure. The most common cause of this is a lack of ventilation AND dust build up on the filter. Get behind there and take a look and if necessary clean it out.

Someone feel free to correct me if i'm wrong on this,

Have you ever replaced the lamp, that is where I would start.

i also had the same problem but mine kept making a weird sound like a squeky mice or something...so i hit the back of my tv and it just appeared back to normal...try hitting it at the back but not extremely hard. Best of luck!

Find your reciept then call mitsubishi . if you purchased it less than 3 years ago mitsubishi will pay to have the expensive light engine replaced.

Purchase a can of comet cleaner, you have to polish your screen to a high luster. Remember the karate kid, wax, wax off.

if it's a digital t.v. your signal strength is too low and the "signal-packets" can't be read or downloaded by the t.v. receiver to produce a picture,digital is very fussy on signal quality and strength of signal since the change-over from analog to digital,also any obstructions will deminish signal quality

Please read the solution on this thread; I keep repeating myself :-(
Bad power supply

Hello!! It might be either that the tv is overheating because of the lack of air, or it may also be your ballast.
First of all I recommend you clean the fans, so the air flow won't be blocked, don't use something that mioght damage some of the boards that are inside, you can buy one of those air cans to clean computers, if that does not work, I recommend you listen closely and notice if there's a clicking sound, if so it might be the ballast.

optical block assembly going bad. repair is pretty costly. try vacuming out the fans. DO NOT USE CANNED AIR!!!! you will blow all the crud into the optical block.