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White Dots on Mitsubishi WD-73734 screen

post #1 of 17
8/22/11 at 10:50pm
Thread Starter 
I recently changed the bulb on my WD-73734. After doing so, I started to see a white dot; later it became two white dots and now its about 5 white dots. Does anyone know what is causing this problem and how I might get it resolved? Did anyone have the same or similar problem? How did you resolve it? Thanks.
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post #2 of 17
8/23/11 at 6:26am
The light engine is going bad and will need to be replaced. I had that problem on mine. It can be done by yourself if you're comfortable replacing a part ( just some screws and ribbon cables), I found an entire new light engine for my 65737 on Amazon for $220.
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post #3 of 17
8/23/11 at 11:17am
Thread Starter 
Quote:
Originally Posted by BrownThunder View Post

The light engine is going bad and will need to be replaced. I had that problem on mine. It can be done by yourself if you're comfortable replacing a part ( just some screws and ribbon cables), I found an entire new light engine for my 65737 on Amazon for $220.

Thanks for the input. Someone else said that it was the DLP chip that was causing the spots. Is that the same as the light engine?
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post #4 of 17
8/23/11 at 4:17pm
The DLP chip is the part that fails in the Light engine.

If a set is covered under a Mitsu warranty, you have to replace the engine. If out of warranty, just the chip can be replaced.

Jim
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post #5 of 17
8/24/11 at 3:44pm
Thread Starter 
Quote:
Originally Posted by 74f100 View Post

The DLP chip is the part that fails in the Light engine.

If a set is covered under a Mitsu warranty, you have to replace the engine. If out of warranty, just the chip can be replaced.

Jim

Thanks for info, Jim. I contacted a local authorized service provider and they asked me to contact Mits about the light engine. Apparently, even though I am out of warranty, Mits will consider providing the light engine for free if I pay for the installation labor. Am waiting to hear from Mits Consumer Relations to see what their decision is. If they don't authorized the light engine replacement, then I will just replace the chip.
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post #6 of 17
8/25/11 at 2:16pm
They will probably require that a service center submit an estimate. There is usually a charge for this.

Good luck,
Jim
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post #7 of 17
8/25/11 at 2:36pm
Thread Starter 
Okay, the situation is now resolved. Mits has agreed to provide a new optical engine at no cost. I have to pay for the service call and installation, about $350. I am satisfied with that solution. The entire optical engine was quoted to me as costing about $1100.
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post #8 of 17
2/14/12 at 7:58am
ok i have been reading on here about the problem with white dots and black ones and it looks like whenever people change out there lamp this happens. because i just had my lamp replaced as well by a tv repair company and suddenly 3 weeks later i saw 1 white dot! not 4 weeks later i have 34 white dots and i can't even tell you how many black ones and more coming everyday!! why does this happen after the lamp was done??? did the repair company screw something up? i did contact mitsubishi and if i paid the 200 labor they would take care of parts but then there wasn't an authorized repair nearby so they said they now need to escolate it futher and they will get back to me in a few days grrr so now i wait in the mean time 2-3 more new dots everyday!!
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post #9 of 17
3/25/12 at 3:47pm
My unit had the issue. I fixed it myself and wrote an article about it
l337tech dot com tips-and-tricks/fix-dlp-dots-replace-dlp-chip-yourself
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post #10 of 17
12/5/12 at 7:04pm
I know this is an old post but I did a search. I have the same TV and have 3 dots and growing. Do I just replace the light engine and the new chip comes with the light engine? Or just replace the DLP chip? Thank you
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post #11 of 17
12/6/12 at 8:35am
Call Mitsubishi at 1-800-322-2119. They have an program to assist people with the problem.
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post #12 of 17
12/7/12 at 8:00am
Quote:
Originally Posted by GEP View Post

Call Mitsubishi at 1-800-322-2119. They have an program to assist people with the problem.
Number is disconnected.
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post #13 of 17
12/7/12 at 10:40am
No it is not, try #1 after you listen to the menu.
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post #14 of 17
12/7/12 at 2:30pm
Quote:
Originally Posted by GEP View Post

No it is not, try #1 after you listen to the menu.

Tones "the toll free number has been disconnected no further information is available for this number 0217". The operator. You sure u have the correct toll free number?
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post #15 of 17
12/9/12 at 6:07pm
Did some research GEP, the actual number is 1-800-332-2119 but I will call them tmw and they should have all my questions answered...
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post #16 of 17
3/3/13 at 8:32am
20 White Dots on Mitsubishi WD-73734 scrn so what can i do?can you halp me
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post #17 of 17
3/3/13 at 8:39am
Quote:
Originally Posted by IrishLord82 View Post

I recently changed the bulb on my WD-73734. After doing so, I started to see a white dot; later it became two white dots and now its about 5 white dots. Does anyone know what is causing this problem and how I might get it resolved? Did anyone have the same or similar problem? How did you resolve it? Thanks.
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