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 Dan Your Own Question

Dan
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 6985
Experience:  USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.
42300671
Type Your TV Question Here...
Dan is online now
A new question is answered every 9 seconds

I have a red shadow on my tv screen. I have tried auto convergence

Resolved Question:

I have a red shadow on my tv screen. I have tried auto convergence twice. How can i fix this??
Submitted: 3 years ago.
Category: TV
Expert:  Dan replied 3 years ago.
Thanks for the question. My name is Dan.

What's the model number? Look on the back panel for this.

Kindest regards,
Dan T.
Customer: replied 3 years ago.

ok, will do this

 

Expert:  Dan replied 3 years ago.
Great. Let me know at your earliest convenience.
Customer: replied 3 years ago.

RT 39NZ43RB, its a big LG tv, with big base, flat looking screen & bulky back.

Hope that helps.

Expert:  Dan replied 3 years ago.

Okay... LG 39NZ43RB. Yes, that helps... thanks.


Your TV's convergence circuit has definitely failed. This is probably the most common issue with TVs of this type and age.


You see, your TV has 3 guns that project their colors (red, green, and blue) onto a mirror… which reflects the image onto the display. The convergence circuit pushes and pulls the colors into alignment so they “converge” at the same point. If the circuit fails, the colors separate… and the picture sometimes warps or bows at the edges.


The circuit is made up of a couple integrated circuits called “convergence amplifiers” (pictured below) as well as some resistors and pico fuses. All of these components are replaceable, if you’re good with a soldering iron. A DIY (do-it-yourself) project will run you $30-$60… a technician, $250-$350.


If you want to DIY, I’d check with these guys first. They have repair "kits" available so you won't have to piece together the individual components. Plus, their kits come with picture-based directions and free phone support. For $30-$60 (depending on your model)… that's a good deal. I suggest calling them... a lot of their kits aren't posted on the site.


Convergence amplifier:


Please click ACCEPT (even if you're a trial or subscription member) if you are 100% satisfied with my answer and plan on leaving me positive feedback (your acceptance is the only way I get paid for my work). A bonus would also be appreciated!


I'm sorry if my answer wasn't what you wanted to hear, but it reflects the most honest and accurate information available. I hope you take that into account when deciding whether or not to accept and leave positive feedback.


That said, if you aren't fully satisfied please do not accept my answer. Instead, let me know what else I can do for you!


Finally, please know that accepting my answer does not mean our dialog is over... you can still post follow-up questions or comments afterward.


Kindest regards,
Dan T.












Customer: replied 3 years ago.

WHAT?!?

 

NO NO NO!!! Has to be a another solution!!! PLEASE!!!!!

 

Its my ex's TV & he wants it back!! In working order!!

 

On another help site it said bout using the manual convergence manually changing it until it lines up the red. i cant find this to do this, only the auto.

Expert:  Dan replied 3 years ago.
There is a manual adjustment, but that's not often used and is usually only performed after replacing the convergence chips I mentioned above. Before you do the manual adjust, you should run the horizontal & vertical raster, beam magnet, & focus adjustments. These are not easy. Maybe you should have a technician take a look?

Your ex should know that this isn't your fault. You didn't do anything to cause this, and there's nothing you could've done to prevent it. This is a very common problem with these projection TVs, especially the LG ones.

I'm sorry this wasn't the answer you were looking for... but I hope it helps you understand the issue. Please click "Accept" if you are satisfied with me and my answer (eventhough it might not have been what you wanted to hear).

Dan

Edited by Dan T. on 1/15/2011 at 3:07 PM EST
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 6985
Experience: USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.
Dan and 3 other TV Specialists are ready to help you

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)
 
 
 
Chat Now With A TV Technician
Dan
Dan
TV Technician
6985 Satisfied Customers
USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.