TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

Screen starts bacl. Takes 20 minutes for the pixels to

Customer Question
Screen starts bacl. Takes...

Screen starts bacl. Takes 20 minutes for the pixels to appear.

Technician's Assistant: What's the brand and model number of your TV? How old is it?

Pioneer Plasma PDP=S26-LR About 12-15 yrs I guess.

Technician's Assistant: Does the TV menu work? Do you have the same problem on all sources/inputs?

It works fine when it warms up. takes 20 mins for screen to appear.

Technician's Assistant: How long has this been an issue with your Pioneer? What happened right before this?

I guess it has gradually got worse. bit by bit.

Technician's Assistant: Anything else you want the TV Expert to know before I connect you?

Is it repearable - something like sower supply or something simple ?

Submitted: 3 months ago.Category: TV
Show More
Show Less
Ask Your Own TV Question
Answered in 2 hours by:
1/5/2018
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 3 months ago
Dan
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 7,478
Experience: USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.
Verified

Welcome to the site! I'm Dan, and I'd be happy to help. It looks like you've gone over some basic information with our automated system, so I just have a couple questions to make sure I know what's going on.

When the set takes a while before showing a picture, does the power light on the front of the TV blink, or are there any clicking sounds coming from within the set? Additionally, before the picture comes on do you have sound?

Ask Your Own TV Question
Customer reply replied 3 months ago
power light comes on right away. Sound is on from start. No blinking - just black screen . After about 15 mins pixels start to appear around edges with centre of screen black. After 20 mins or so screen is working properly.
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 3 months ago

OK, thanks for the extra info.

There are a few different things that could cause this. Are you looking to dig into the TV and make repairs yourself, or just trying to get an idea of the repair cost? It's probably reparable, but the cost will depend on whether or not you can do the work yourself.

Dan

Ask Your Own TV Question
Customer reply replied 3 months ago
trying to understand likely reason & order of magnitude cost. If the plasmas screen is stuffed, it will be time for new TV but if it power supply , or transformer or something relatively minor perhaps it is repairable?. If it going to cost more than say $300-400 might be time for a new TV.
TV Technician: Dan, Master Tech and Repair Facility Trainer replied 3 months ago

I understand.

This issue is moderately common, and is rarely caused by the plasma panel (the screen). That's good news.

Likely reason: In most similar cases, we find defective capacitors on the power supply board that need to be replaced, and sometimes on other boards inside the TV. Over time, the electrolyte inside these capacitors dries up, and the capacitor itself begins to swell or "dome" up on the top. The electrolyte might even leak out of the top, but not always.

Diagnosis: Here's how to identify the bad ones.

1. The first thing I would do is disconnect the power cord from the wall, and let the TV sit for 5 minutes.

2. Then I would lay the TV face down on a flat surface that has been lined with a blanket.

3. Then, I would remove the TV's pedestal stand, and also the rear panel (lots of screws... be careful where you put them).

4. Now I would find the power supply board. It'll be the first large board I would find while tracing the AC power receptacle into the TV.

5. I would have a good close look at the board, paying particularly close attention to the capacitors. I would look to see if any of them are even slightly puffy on top, like the ones in >>this picture<<. A good capacitor will be completely flat on top... almost concave. Any puffiness/convexity at all, and it should be replaced.

Cost: Minimal. Maybe $1/ea capacitor that needs to be replaced. If you find that all of the bad cap are on 1 particular board, you can save a ton of labor and just replace the whole board. That would increase cost, of course, but it would make the process easier.

Also possible: Sometimes we see this caused by defective or aging circuit boards inside the TV, unrelated to the capacitors I just talked about. Over time, the voltage levels inside the TV can change which can sometimes cause the issue you're seeing, but it's definitely not the most probable cause. Just wanted you to be aware that there are always other possibilities.

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
Was this answer helpful?
Ask Dan Your Own Question
Dan
Dan
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 7,478
7,478 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

2,950 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

1,429 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 have a Samsung plasma TV model number PS51E531A6M that
Hi I have a Samsung plasma TV model number PS51E531A6M that won't turn on. The standby light illuminates when power is applied initially, it also then flashes a few times before extinguishing. I canno… read more
Sam Dennis Bradley
Sam Dennis Bradley
owner
Vocational, Technical or Trade School
59 satisfied customers
It's o plas,a. Its a plasma tv 55lw6500. yesterday unit shut
its a plasma tv 55lw6500. yesterday unit shut down on its own turned it back on heard the unit click on, the screen blank ans … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
341 satisfied customers
I have a 10 year old 50" plasma TV that works super. The
I have a 10 year old 50" plasma TV that works super. The newer comcast cable box does not have a code to enter to allow the sound to work. Any suggestions? … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
I have an eleven yer old Panasonic Plasma TV. For the last
I have an eleven yer old Panasonic Plasma TV. For the last week when I start it the picture is fine and then it starts to mess up the colors and horizontal lines start messing the picture from the cen… read more
technicalcat
technicalcat
Computer Science
840 satisfied customers
My Pioneer Plasma TV does not work. It is stuck in ,standby
My Pioneer Plasma TV does not work. It is stuck in ,standby mode, nothing comes on the screen. What can I do? … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,663 satisfied customers
I have a plasma PN51F5500AFXZC. Somehow, the picture got
Hi; I have a plasma PN51F5500AFXZC. Somehow, the picture got turned off. Menu/picture shows picture off, and instructions say press a key to turn picture on. Nothing happens pressing keys on the samsu… read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,505 satisfied customers
My Panasonic. Progressive plasma television. Model
My Panasonic. Progressive plasma television. Model TH-37PA20. Runs for about 40 mins and then shuts off. I unplug it and let it cool off and then plug it in to start all over. Then it will turn off wi… read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
341 satisfied customers
My Panasonic. Progressive plasma television. Model
My Panasonic. Progressive plasma television. Model TH-37PA20. Runs for about 40 mins and then shuts off. I unplug it and let it cool off and then plug it in to start all over. Then it will turn off wi… read more
Electrotech2017
Electrotech2017
Audio and Video Technician
Vocational, Technical or Trade School
155 satisfied customers
Samsung Plasma 51D7000FFXZA works fine then starts cycling
Samsung Plasma 51D7000FFXZA works fine then starts cycling off and on … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,663 satisfied customers
Have a pioneer pdpro3u media reciever and plasma screen -
Have a pioneer pdpro3u media reciever and plasma screen - when I turn it on the plama comes on and goes back off and flasshes red … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,663 satisfied customers
I was experiencing periodic horizontal bars on my plasma
Hi, I was experiencing periodic horizontal bars on my plasma Pansonic TC-p50GT30. I tried disconnecting and reseating the ribbon corresponding to the band but all that did was make the bar permanent I… read more
Electrotech2017
Electrotech2017
Audio and Video Technician
Vocational, Technical or Trade School
155 satisfied customers
Have a Panasonic plasma that starts but dies after a a few
Have a Panasonic plasma that starts but dies after a a few seconds. Opened the back hoping to see something obvious.., but.. … read more
Harry
Harry
1,401 satisfied customers
How many HDMI outlets are on the Plasma Tv? Panasonic. It is
Panasonic . It is hanging on TV bracket. I cannot see the model number. We bought it around 2001 … read more
Dan
Dan
IT/Broadcast Engineer
Bachelor\u0027s Degree
508 satisfied customers
42 inch plasma will not turn on with tv remote or cable
42 inch plasma will not turn on with tv remote or cable remote. We have shut off all power for two to there minuets four times and the cable rebutes but the tv still does not turn on … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,663 satisfied customers
Panasonic plasma, 2011, turns on and off repeatedly by
panasonic plasma, 2011, turns on and off repeatedly by itself … read more
Eldon
Eldon
BS
210 satisfied customers
My Panasonic Viera Plasma tv is not producing sound. It
My Panasonic Viera Plasma tv is not producing sound. It started after a brief power outage. Picture quality is fine but no sound with Netflix, or Sling TV via Amazon Firestick … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,505 satisfied customers
It's a 2006 vizio plasma. The plasma has been replaced once
It's a 2006 vizio plasma. The plasma has been replaced once in 2011. When i turned it on the screen was black and had a light colored rectangle in the middle of the screen. I unplugged it for about an… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,663 satisfied customers
My panasonic plasma TH-50PX80. M plasma TH-50PX80 will not
M plasma TH-50PX80 will not power on.. the red power light just blanks … read more
p0llinate
p0llinate
Bachelors of Science
14 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