TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

My LED Tv started "pulsing"recently. And, about half of the…

Customer Question
My LED Tv started "pulsing"recently...
My LED Tv started "pulsing"recently. And, about half of the horizontal lines look very pronounced and unclear.
I ordered a new "main" board and power board, and installed each of them independently. Neither of them corrected the issue. It happens no matter what channel, tuner, or HDMI input or cable I use. I made a video of the problem, but I'm not sure what else to replace.
Samsung LED UN46D6000
Submitted: 2 years ago.Category: TV
Show More
Show Less
Ask Your Own TV Question
Answered in 23 minutes by:
2/17/2016
TV Technician: Nathan, Installer replied 2 years ago
Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 31,389
Experience: Custom home theater installer, authorized dealer top brands.
Verified

Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.

Sorry to hear you’re having trouble.

Am I understanding correctly that you're getting horizontal lines? Are they all the way across the screen? Do they ever move or change?

Ask Your Own TV Question
Customer reply replied 2 years ago
I have a video of the issue b/c it's hard to explain. It's like the lines are blurry or pixelated while pulsating. Do you have an email I can forward the video to?
TV Technician: Nathan, Installer replied 2 years ago

You can upload the video here or send a link to it.

Ask Your Own TV Question
Customer reply replied 2 years ago
See if this link works.https://www.dropbox.com/s/8ejisei3hpdlo56/IMG_0404.MOV?dl=0
TV Technician: Nathan, Installer replied 2 years ago

Thanks for confirming.

There are a few possible causes of that, we'd suspect the main board first, then the tcon, and lastly the panel.

Since you've already replaced the main, the tcon is the most likely issue here. The panel is possible, but since the lines are intermittent I don't expect that is the case, which is good news for you as that is something that cannot be fixed.

You can get a used board here: http://amzn.to/1PEf8wp

Or send yours in for repair here: http://bit.ly/1SwPWf6

Ask Your Own TV Question
Customer reply replied 2 years ago
When I looked to purchase a new t-con board on shop jimmy, it gives this disclaimer: "IMPORTANT: Horizontal lines on the screen are virtually NEVER caused by a bad T-con board. Horizontal lines indicate a defective LCD panel (screen)."Do you still feel like it is the t-con board?
TV Technician: Nathan, Installer replied 2 years ago

Yes, it does give that disclaimer, which I mentioned as a possibility also. Their info is not very detailed though, because your lines are not solid and fixed (they change shape, move, etc) that is not likely to be the panel (but still possible). Replacing the tcon would be the prudent step at this point. If that still didn't work, then it would indicate the panel however.

Ask Your Own TV Question
TV Technician: Nathan, Installer replied 2 years ago

Did you still need help with this?

Ask Your Own TV Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a tv technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Nathan Your Own Question
Nathan
Nathan
Nathan, Installer
Category: TV
Satisfied Customers: 31,389
31,389 Satisfied Customers
Experience: Custom home theater installer, authorized dealer top brands.

Nathan is online now

A new question is answered every 9 seconds

How JustAnswer works:

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

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.

VMUnited 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.

WindyUSA

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!!!!

AlexLos 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.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, 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.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Louie

Louie

Technician

3,022 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Rod

Rod

TV & Communications Sys Repair

2,355 satisfied customers

FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.

Steven

Steven

Technician

1,457 satisfied customers

Ma. Master Technician Lic. Authorized Warranty Support.

euro-pro llc

euro-pro llc

Technician

1,128 satisfied customers

20 years in TV repair,certified by all major brands- Sony,Samsung, LG,Toshiba, Panasonic, RCA,

Daniel

Daniel

Electrical Engineer

1,072 satisfied customers

BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert

Conrad

Conrad

Technician

946 satisfied customers

Training on many types of consumer electronics, training on Sony Samsung and JVC

Neil

Neil

Technician

803 satisfied customers

More than 10 years experience repairing TV's and electronics equipment.

< Previous | Next >

Related TV Questions
Had one or two horizontal lines running thru my tv the
Had one or two horizontal lines running thru my tv the across half the tv, then picture disappears with only the tiniest little color other than blue in the extreme right of screen about half way up. … read more
Harry
Harry
2,172 satisfied customers
There just doing a favor for a friend of mine. the model is
hey there just doing a favor for a friend of mine. the model is samsung un46d6003sf. powers on for a moment the samsung logo appears briefly then the screen goes black with power led blinking then pow… read more
Harry
Harry
2,172 satisfied customers
My plasma TV has a failure after 5 years now. It's a
Hello. My plasma TV has a failure after 5 years now. It's a Samsung S42AX-YD01. What I see is some kind of red sparkling in the center of the right half of the display. This pattern appears every seco… read more
Dan T.
Dan T.
Calibration and Repair Center Supervisor
Associate Degree
5,680 satisfied customers
. My Panasonic TH-50PX50U suddenly developed problem.
Hello. My Panasonic TH-50PX50U suddenly developed problem. Has sound, but no picture. Screen is flashing intermittently between fuzzy and grey, and sometime colorful horizontal lines. Red LED remains … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,668 satisfied customers
I have a 50" Samsung Plasma TV that has Horizontal lines and
I have a 50" Samsung Plasma TV that has Horizontal lines and snow across entire picture. I have reseated all cables and none of the caps seem to be damaged. The picture is quite distorted, sound works… read more
Dan T.
Dan T.
Calibration and Repair Center Supervisor
Associate Degree
5,680 satisfied customers
Hello! I have a 42 inch Samusung plasma set with working audio
Hello! I have a 42 inch Samusung plasma set with working audio (on all inputs) but no picture. All that shows on the screen are horizontal sparkling multi colored lines and dots and there is a clear d… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
I have a Samsung TV which I purchased in 2007 in Dubai. I brought
I have a Samsung TV which I purchased in 2007 in Dubai. I brought it to Australia with me in 2011 and it has been working fine up until the last Month. At this time it started losing audio and making … read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
TV is a Samsung UN46D6000. It flickers (many horizontal lines,
TV is a Samsung UN46D6000. It flickers (many horizontal lines, size problems, negative colors flashing) when any HDMI input provides 1080p (60Hz). Tried with 3 different HDMI cables in 2 different HDM… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,668 satisfied customers
I have an Sony KDL-32M4000 that was not turning on. It has
I have an Sony KDL-32M4000 that was not turning on. It has no power or standby lights. i tested the voltages and was not getting anything on the standby voltages. So naturally i replaced the the power… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
There are terrible multi coloured lines running up and down
There are terrible multi coloured lines running up and down the image being displayed, on any channel or any function. A technician told me I would need to replace something in the TV costing thousand… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
We own a Samsung PN50B450 and Samsung LN32a550 Last week
We own a Samsung PN50B450 and Samsung LN32a550 Last week our cable company lost an amplifier (it literally burned) on a pole and the picture disappeared as I was watching a station. The cable company … read more
Rick williams
Rick williams
Electronic technician
Vocational, Technical or Trade Scho
7,246 satisfied customers
Hello,My Samsung hl-67a750 LED DLP has quit working after
Hello, My Samsung hl-67a750 LED DLP has quit working after only a few years of use. Below is the history and what has been changed so far. The problem started with the picture going out but still havi… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
Sony KDL 46Z4100 - 46" LCD television recently started displaying
Sony KDL 46Z4100 - 46" LCD television recently started displaying pink dots around lighter areas of the picture. Problem persists across all inputs (dvd, cable box, Nintendo Wii, etc). The pink dots a… read more
ProTV and Audio
ProTV and Audio
Principal. Engineering Technician
Bachelor\u0027s Degree
939 satisfied customers
I have a 42 Samsung plasma. There is a black and white pixel
I have a 42" Samsung plasma. There is a black and white pixel band, approximately 2-3 inches wide running horizontally through the middle of the screen. What's up with that… read more
euro-pro llc
euro-pro llc
Technician
Associate Degree
1,128 satisfied customers
If I have a DLP Engine Assy (with the ballast, DMD board, LED
If I have a DLP Engine Assy (with the ballast, DMD board, LED assy, etc.), can I plug a DVI or HDMI into the unit and wire a power supply to the ballast to get a projected image? I know the a complete… read more
Steve
Steve
Chief Engineer
9 satisfied customers
Hitachi 50 Projection TV Model# 50ux53k Problem Black horizontal
Hitachi 50" Projection TV Model# XXXXX Problem: Black horizontal lines when set is turned on. Goes away with slight tap to side of cabinet. I have taken the main board out and did a blanket solder per… read more
Joe
Joe
Associate Degree
484 satisfied customers
i have a samsung tv model TC3836TB made in 1992. the channels
i have a samsung tv model TC3836TB made in 1992. the channels stop at 65 although our cable has channels well into the 90s. channel 66 and higher will not work on the tv even when i enter the channel … read more
Dan - Master Tech
Dan - Master Tech
Small Business owner
Technical School
279 satisfied customers
I have a 42 Plazma HP R4272 and intermitently the lower half
I have a 42" Plazma HP R4272 and intermitently the lower half of the screen goes black. I've had the cable company out twice thinking it was their service. Their signal seems fine. My question is: hav… read more
Flatpanel Guru
Flatpanel Guru
Lead HD Tech
Vocational, Technical or Trade Scho
721 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x