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I was watching TV and when the screen went black I noticed some liquid type marks. What are these? How can I fix them? Is it covered by warranty?

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If your wide screen panel went out completely and wont turn on it should be covered by the waranty that is what you have to pay extra for, call the store or source you bought it from and let them know asap.
seems you have a shut down circut or a defective screen issue. you have liquid type marks on the screen itself then theres a chance it is defective, so dont wait to long to get your exchange or a waranty repair..


good luck

Posted on Dec 12, 2008

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I have av RCA RLDED5078A-D 50In LED I was watching it and the screen went black but I can still hear the sound!!


Probably the power supply board went out or the backlighting.
Unlikely it's the control board as the sound is still working.

Don't open up the TV to fix it yourself if you don't know what you're doing. There are HAZARDOUS voltages inside EVEN WITH THE TV UNPLUGGED!!!.

Find a couple of shops, get quotes, try to find reviews of the shops too. If it's still under warranty, by all means contact the company to get it fixed.

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WHY DOES MY SAMSUNG TV HAVE AUDIO AND NO VIDEO, SCREEN IS BLACK?


Ted, You have to push the issue with Samsung, contact them and ask for a resolution specialist. If it was indeed still under warranty when you contacted them make them fix it, as it could get expensive. Check the attached links, Samsung support instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Contact Us Samsung CA

Television Support SAMSUNG Canada

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TV Video TVs Samsung Support

Apr 12, 2016 | Samsung Flat Panel Televisions

1 Answer

Samsung Curved Tv screen went black, how much will it cost to fix?


If set is less than a year old it is covered by warranty. Otherwise it is gonna cost more than what you want to pay for a relatively new set!

Feb 04, 2016 | Samsung UN55HU8700 - 55-inch Curved 4K...

1 Answer

Sony liquid crystal tv, was watching show then heard loud pop and tv went black but looks on. No pic or sound. has power but cant control tv at all. Complete silence and black screen.


Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

May 14, 2015 | Sony new bravia s-series 40-inch 1080p lcd...

1 Answer

Panasonic viera screen


Sounds like a panel fault. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Screen-shots to defective LCD TV panel is given. You can compare it to that of your TV's, and can make sure.

Apr 11, 2014 | Flat Panel Televisions

1 Answer

2/3 Inch Faint Horizontal Bar through center of screen


A little WARNING!! .. don't open the TV because if you do that the warranty is gone.

Whenever you see a black horizontal bar on the flat panel screen TV, it usually means that the buffers in one of the Horizontal COF chips is dead, not soldered properly or got damaged mechanically during transport or something like that. COF chips are microchips made on the flat cable that are connected from the board to the LCD panel screen, and they lit up certain sectors of the screen. Every X buffer lits up pixels from specific locations in combination with Y buffers, depending on type of panel used in a device. and when one of the Y buffers die ... then the pixels receive only X buffers information and not Y and then the black bar appears with some weird noise dots on the edges or something like that. It is repairable, what you need is an SMD repair (rework) soldering station and an identical Buffer COF chip. Unfortunately this is not a quick fix if you don't have the appropriate equipment, so I would suggest using that extended warranty and get your TV serviced properly by the LCD repair man :)

http://www.epartshub.com/upload/cmpy/00000166/Img/00000166-COF.jpg

...this is the COF chip.

http://www.hotsolder.com/uploaded_images/iron-726250.jpg

... this is the hot air SMD soldering station

depending on the COF chip type, some of the chips are soldered and some are just connected through the flat connectors without soldering.

A little WARNING!! again .. don't open the TV because if you do that the warranty is gone.

May 09, 2010 | Vizio VW42LF 42 in. LCD HDTV

1 Answer

Sound stays on, but no picture- goes black and stays that way.


This unit should still be under warranty and should be taken in for warranty service. Any attempt to access the interior will void the warranty. It is important that a complete description of the problem like you entered here be taken along when you bring the set in for service. This will insure that the servicer be able to reproduce the problem and resolve it.

From your description (and as a servicer), I would be looking for a component that is heat sensitive. These types of problems are fairly easy to locate and resolve.

Please take this in for warranty service and update this when you find out the details.

Thanks,
Dan

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1 Answer

My 37" tv


This is a dead pixel. This pixel represents one liquid crystal which is failing for some reason.

There is no way to repair liquid crystals.

If you purchased the TV new today, return it and get a new one. If it is still under warranty, then do a warranty return.

Aug 19, 2009 | Flat Panel Televisions

2 Answers

8 1/2 month old TV went out.


Take it back to where you bought it if it's still under warranty, they are obliged to fix it!

Jun 17, 2009 | Sanyo DP42848 LCD TV

1 Answer

Screen went black on Philips LCD TV


nope..I'd say that you lost your power supply inside..

first you'll need to find a source of supply for the boards,

then, a good tool kit

then, you will see it's not that big of deal

just make certain that when/if you place this on it's face for removing the rear panel, you pad that table or countertop with three layers of soft material.

Feb 24, 2008 | Philips 23PF5320 23 in. HD-Ready LCD...

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