TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

Lg model 55lb5550-uy 55inch tv screen is black and

Customer Question
flickering the picture on and...
lg model 55lb5550-uy 55inch tv screen is black and flickering the picture on and off even on the menu.I replaced the the back lights as recommended, and yes there were 3 LED"d burn, but the flickering continued, than i replaced the power board and still flickering, any suggestions ?Thank you.
Submitted: 7 months ago.Category: TV
Show More
Show Less
Ask Your Own TV Question
Answered in 2 days by:
12/17/2017
TV Technician: Harry, Customer Service replied 7 months ago
Harry
Harry, Customer Service
Category: TV
Satisfied Customers: 2,647
Experience: IT at Justanswer
Verified

Hello:

Welcome to JustAnswer! My name is ***** ***** I am happy to be assisting you today. My sincerest apologies that it look so long for someone to reply, we're a bit behind with the holidays coming upon us. Before we begin, can you please let me know if you still need help with your question? Just use the reply box to let me know.

Ask Your Own TV Question
Customer reply replied 7 months ago
I do.
Can we set up time for tomorrow if posible.
Thank you for your reply.
JA
TV Technician: Harry, Customer Service replied 7 months ago

Yes, reply here when you are free.

Ask Your Own TV Question
Customer reply replied 7 months ago
At 3:00pm MT if you can or at 6:30pm
TV Technician: Harry, Customer Service replied 7 months ago

Reply back when you are free and if I am not available, another expert will be.

Ask Your Own TV Question
Customer reply replied 7 months ago
Harry,
Are you available now?
TV Technician: Harry, Customer Service replied 7 months ago

Unfortunately, I am not available but you can send a phone call request if you wish and another expert can help if they are

Ask Your Own TV Question
Customer reply replied 7 months ago
Can we try tomorrow then?
TV Technician: Harry, Customer Service replied 7 months ago

Sure

Ask Your Own TV Question
Customer reply replied 7 months ago
A live phone call will cost me another $26 on top of the first fee?
TV Technician: Harry, Customer Service replied 7 months ago

Yes

Ask Your Own TV Question
Customer reply replied 7 months ago
Can you help me now please
TV Technician: Harry, Customer Service replied 7 months ago

When are you available tomorrow?

Ask Your Own TV Question
Customer reply replied 7 months ago
Any time between 3:00pm and 5:00pm
TV Technician: Harry, Customer Service replied 7 months ago

OK

Ask Your Own TV Question
Customer reply replied 7 months ago
Harry are you available now?
Customer reply replied 7 months ago
Could you please let me know when can you help me?
Customer reply replied 7 months ago
Harry are you available now?
TV Technician: Harry, Customer Service replied 7 months ago

I will be available on Dec 26th

Ask Your Own TV Question
Customer reply replied 6 months ago
Harry are you available now?
TV Technician: Harry, Customer Service replied 6 months ago

Not until the 29th unfortunately.

Ask Your Own TV Question
Customer reply replied 6 months ago
what time?
TV Technician: Harry, Customer Service replied 6 months ago

I will be available from 3-6pm EST but it can change. I apologize for the difficult time of us getting together on this.

It might be easiest to have someone come out locally to take a look at the TV as well

Ask Your Own TV Question
Customer reply replied 6 months ago
I have requested other technician to help me, not heard any response. Please can you respond.
Customer reply replied 6 months ago
lg model 55lb5550-uy 55inch tv screen is black and flickering the picture on and off even on the menu.I replaced the the back lights as recommended, and yes there were 3 LED"d burn, but the flickering continued, than i replaced the power board and still flickering, any suggestions ?
Customer reply replied 6 months ago
I have already made the payment.
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 6 months ago
Dan
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 7,481
Experience: USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.
Verified

Different expert here. I'm Dan, and I'm just checking to see if you still need help with this.

Dan

Ask Your Own TV Question
Customer reply replied 6 months ago
Thank you Dan, when can you help me?
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 6 months ago

I work from home when I can, so you and I might not be on the same "schedule" however I can still help.

I see you have a 55lb5550 that is flickering on all inputs, as well as the menu. I need the part number of the items you've already replaced, please.

Dan

Ask Your Own TV Question
Customer reply replied 6 months ago
LG 6916L-2232A/6916L-2233A Replacement LED Backlight Strips (10) 55LF6000-UB
LG EAY63072101 Power Supply / LED Board
From shopjimmy.com
Customer reply replied 6 months ago
Dan,
I will be home all next week.
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 6 months ago

OK, I've gone over all the service data on this unit and my own personal notes. Since you've already replaced the power supply and LED strips, there are only 3 other possible issues:

1-The display panel could be defective (highly unlikely). Probably not worth discussing because it's very rare and would be cost prohibitive to replace.

2-The main board could be defective (possible). You could do a repair & return >>here<< or you can wait for >>these guys<< to get more in stock. I can't find them available from another reputable seller. You could check eBay if you're comfortable with that.

3-The EEPROM on that main board could also be bad (most probable). Replacing the EEPROM would preclude having to do the whole board. You can get the IC >>here<< for $15.

If this was my TV, I would replace the EEPROM. If that didn't work, move on to the main board.

Let me know if you need anything else. Oh, and please take a second to rate the service I provided (there should be a 5-star scale on your page somewhere). Don't worry, that won't close your question and you can still respond back at any time.

Ask Your Own TV Question
Customer reply replied 6 months ago
Dan, I order the EEPROM will work this week end.
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 6 months ago

OK sounds good!

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 Dan Your Own Question
Dan
Dan
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 7,481
7,481 Satisfied Customers
Experience: USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.

Dan 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
I purchased a LG TV a while back. A few days ago the screen
I purchased a LG TV a while back. A few days ago the screen went black but the sound was still ok, but I managed to get it working again by turning it off for a few minutes. It has gone black with the… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
There is no picture. Cable guys came to check and said it's
There is no picture. Cable guys came to check and said it's my tv … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
My LG tv just started flashing and it won't stop everything
My LG tv just started flashing and it won't stop everything else is working functionally I unplugged the tv for a couple hours and still is flashing on and off … read more
Nathan
Nathan
Bachelors of Science
14 satisfied customers
I have an lg tv 49lb5550 that is blinking. On Sunday evening
I have an lg tv 49lb5550 that is blinking. On Sunday evening it was working perfectly. On Monday morning I could not get a picture other than the flicker, which is horizontally across the upper portio… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
Home power blinked several times before I could unplug. Now,
Home power blinked several times before I could unplug. Now, the audio is fine, but the picture flips to black, maybe 1 second pic, 5 seconds daek...audio is constant. … read more
Jack
Jack
technician
factory trained engineer
2,164 satisfied customers
I have a LG tv 55lb5550 every single led lights are
I have a LG tv 55lb5550 every single led lights are flashing, I have picture and sound, how to fix that problem. … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
My Samsung LED TV has sound but no picture. The backlights
My Samsung LED TV has sound but no picture. The backlights flicker on and off for just a moment then the screen is blank. I tried replacing the main board with the LED inverter it did not solve the pr… read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,507 satisfied customers
I have a LG model 55LB5550-uy it will power up has sound put
I have a LG model 55LB5550-uy it will power up has sound put the pic comes on then fades out and come back and it keeps fading in and out HELP!!! Thank you John Nickerson … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
344 satisfied customers
The picture just went out. Everything else is fine. Good
The picture just went out. Everything else is fine. Good sound. Now the picture is flickering but mostly black. … read more
Nathan
Nathan
Bachelors of Science
14 satisfied customers
Power is good. Video blinks. I wasn't there when it started.
It's like the picture is on strobe mode.. Sound is continuous and clear. Power is great. Tried rebooting, unplugged and reconnected, nothing works… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
Sony bravia TV... 2011 model... started flickering a month
sony bravia TV... 2011 model... started flickering a month ago... got the 8 blinks of death. performed factory cal and the blinking persists. Everything checks out on the power supply board. … read more
Nathan
Nathan
Bachelors of Science
14 satisfied customers
Lg model 55lb5550-uy 55inch tv screen is black and
lg model 55lb5550-uy 55inch tv screen is black and flickering the picture on and off even on the menu … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
344 satisfied customers
Hi Dan, I have a 73" Mitsubishi that will inadvertently shut itself off. Then after
Hi Dan, I have a 73" Mitsubishi that will inadvertently shut itself off. Then after the front panel light stops blinking it will turn back on, sometimes will remain on for several hours, then power-of… read more
Mike G.
Mike G.
Television Repair Technician
Vocational, Technical or Trade Scho
1,674 satisfied customers
I have a XVT553sv vizo tv. I just replaced the LED driver
I have a XVT553sv vizo tv. I just replaced the LED driver with a refurbished one I bought on ebay. Before I replaced it, the problem was that I would get these darker looking boxes on my screen and so… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
I have a Panasonic TH 42 PX 25 set. When you power it up, it
I have a Panasonic TH 42 PX 25 set. When you power it up, it clicks 3 times, the cooling fans all (4) start, but no picture and no flashing red light code… read more
Dan
Dan
Master Tech and Repair Facility Trainer
Associate Degree
7,481 satisfied customers
Hi Aric, I also have a VizioXVT 553SV that just started to
Hi Aric, I also have a VizioXVT 553SV that just started to flicker. The screen is not shutting off (yet!) but flickering is pretty constantly. At first it seemed to be localized to the upper left corn… read more
Electra-Tech
Electra-Tech
107 satisfied customers
LG 42lg5400 42" Purchased 04/10 After approx. 20/30 min
LG 42lg5400 42" Purchased 04/10 After approx. 20/30 min of use the picture will freeze, sound will continue, then snap crackle sound with horizontal markings, then blank screen. Was able to prevent or… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
I found your resposne to the problem below: PANASONIC 46PZ85U
I found your resposne to the problem below: PANASONIC 46PZ85U SHOWS BLINKING RED POWER LIGHT WHEN ATTEMPT TO TURN ON. NO PICTURE, NOTHING DISPLAYS, NO SOUND, NOTHING.......HOME WAS VACANT FOR 3 WEEKS,… read more
TV Tech1
TV Tech1
Associate Degree
4,544 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