How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Chuck Williams Your Own Question

Chuck Williams
Chuck Williams, Technician
Category: TV
Satisfied Customers: 3810
Experience:  Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.
13758627
Type Your TV Question Here...
Chuck Williams is online now
A new question is answered every 9 seconds

I have a 73 Mitsubishi DLP unit that is starting to get white pixels 20+ and now bla

Resolved Question:

I have a 73" Mitsubishi DLP unit that is starting to get white pixels 20+ and now black pixels 30+. Is there a servicing for this or does the main DLP unit have to be replaced? I've been through that before 2 times when the unit was new.

Thanks,

Ted Hayduk (XXXXX@XXXXXX.XXX)
Submitted: 3 years ago.
Category: TV
Expert:  Chuck Williams replied 3 years ago.

Chuck Williams :

Hi!

Chuck Williams :

If you are having white or black "pixels,", then I'm guessing these spots are absolutely stationary, correct? They do not move around at all?

Customer:

Yes started out a 2, then 4 then 6-8 white pixels. The black pixels are new. I was hoping is was a "cleaning" issue. I was told that here was an annual preventative maintenance that should be performed every 2-3 years. It's just past 3 years since the main DLP unit was replaced.

Chuck Williams, Technician
Category: TV
Satisfied Customers: 3810
Experience: Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.
Chuck Williams and 5 other TV Specialists are ready to help you
Customer: replied 3 years ago.
No bad pixels are moving, but the black pixels have a different shape than the white ones. I can take a picture and send it to your email if that would help?
Expert:  Chuck Williams replied 3 years ago.

OK, then if the problem moves around, it's definitely not pixels of even dust in the optics, it's more serious. And the usual suspects are the capas scattered throughout this TV that always go bad. In your case, probably on the formatter board. This is one of many known problems on this TV.

 

But if I may, I'm going to give you some frank advice.

 

If you are at all inclined to junk this TV, in my opinion now's the time. This set was a dog from the get go.

 

Another problem just waiting to crop up is a defective DM module. The way that will happen is that one day, the front green LED will just rapidly flash, like it does when you plug the set into the power outlet, only it won't stop.

 

Mits has a program where they will rebuild the chassis of this TV for about $300, but you'd also have to get a Mits tech involved, and his time to pull the chassis and send it off, then reinstall it would be in the $200 range at the very minimum.

 

There are a couple of other bad design flaws in this TV, but the above is certainly enough in my book. Mits used to make great TV's, but ever since their entry into the DLP design (and again, this is my opinion), they haven't made a decent TV. Their current line is a step back in the right direction.

 

Sorry for the bad news, let me know if you have any other questions, thanks for the accept, and thanks for using JustAnswer!

 

Chuck

Customer: replied 3 years ago.
My bad, the pixels are NOT moving, but getting more frequent. I bought the 72" with the extended warranty. main DLP module went out in 8 months. Replaced, then 4 months later that one failed. After a LOT of bitching they replaced the set with a new 73" model. Been fine until now.

If it's a cleaning issue and could be fixe3d with a service call, fine. If I have to screw with a new DLP unit - out it goes... :-(

Ted
Customer: replied 3 years ago.
Do bad Pixels NOT moving change your assessment?

Ted
Expert:  Chuck Williams replied 3 years ago.

Sorry for the delay in getting back to you, I'm ion the Caribbean and my Internet is a little spotty.

 

If your pixel issue is absolutely stationary, then that almost always means you either have dust or debris on the DLP surface, especially if they aren't really defined by "pixels" per sey.

 

If you look very closely at the screen, you will see what individual pixels look like. If your problem of what you see on screen is bigger that actual pixels or overlaps a few pixels, then dust is a definite possibility.

 

But if you truly have exact pixel size defects, that to me would indicate a problem on the DLP chip, and you're back to spending big money to fix it.

 

Get back to me if you have any other questions, and thanks for the Accept!

 

Chuck

Customer: replied 3 years ago.
Thanks Chuck. I'll get a cleaning and see what happens. If that doesn't get it cleared up, Flat LED is the next step.

Safe Travels,

Ted
Expert:  Chuck Williams replied 3 years ago.
Best of luck to you, Ted!

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
< Last | Next >
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
  • I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all. Windy USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • TV Tech1

    Technician

    Satisfied Customers:

    4800
    30 Years experience. Authorized Warranty servicer.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TV/TVTech1/2013-3-25_625_TECH1Nobanner.64x64.jpg TV Tech1's Avatar

    TV Tech1

    Technician

    Satisfied Customers:

    4800
    30 Years experience. Authorized Warranty servicer.
  • http://ww2.justanswer.com/uploads/OR/OriginalSeadog/2011-7-22_191917_ProfilePicture.64x64.jpg Rod's Avatar

    Rod

    TV & Communications Sys Repair

    Satisfied Customers:

    2354
    FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.
  • http://ww2.justanswer.com/uploads/benimur/2009-03-29_003401_id_2.jpg Louie's Avatar

    Louie

    Technician

    Satisfied Customers:

    2208
    25+ yrs. experience in the field and 3+ yrs. online, down to component level.
  • http://ww2.justanswer.com/uploads/P0/p0llinate/2011-4-27_174649_tucker.64x64.JPG Nathan's Avatar

    Nathan

    Installer

    Satisfied Customers:

    1683
    Custom home theater installer, authorized dealer top brands.
  • http://ww2.justanswer.com/uploads/ST/steven.benoit/2011-4-1_194735_untitled1.64x64.jpg Steven's Avatar

    Steven

    Technician

    Satisfied Customers:

    1366
    Ma. Master Technician Lic. Authorized Warranty Support.
  • http://ww2.justanswer.com/uploads/IT/ITPeter/2011-5-3_23187_Pete.64x64.JPG Pete's Avatar

    Pete

    Electronic Engineer

    Satisfied Customers:

    1260
    12+ years experience installing and repairing electronics.
  • http://ww2.justanswer.com/uploads/3G/3guk/2011-1-15_132320_D1SC01363.64x64.jpg James's Avatar

    James

    Technician

    Satisfied Customers:

    1154
    AV Service Engineer (4 Years)