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My thorn 55 inch has horizontal lines going though it can someone help please

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If you wish to get some details; visit the site linked here. Pull up older posts.
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Posted on May 08, 2017


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Posted on Jan 02, 2017


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How do i watch a 3d movie on my 55"thorn tv?

the tv automaticly determines if it should go to 3D mode as long as the DVD player or say like PS3 or PS4 is connected to HDMI (yes those two game consoles will support HD Blueray 3D and DVD 3D movies) if the TV isnt displaying 3D look into the video settings of your TV to enable that ability also your TV will come with 3D glasses if the TV supports 3D

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Of course it can be repaired. Do U wanna spend the money?

The circuit board that is responsible for vertical deflection has an intermittent condition responsible for the anomaly. If you locate the board you might want to check for the signs of a faulty capacitor.

If all looks dynamite, checking for a bad cap can be an ordeal and maybe the best way to go is simply replace the board in question.

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My thorn 55 inch smart TV won't work when I go to the smart TV it just says no signal northing will work can you help me

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Horizontal line LED tv

what kind of tv?

If its small , id probably replace it. Sounds like tcon board is going bad. If you google tv troubleshooting videos they will give you examples to compare to and steps to troubleshoot.

If it's the tcon should be around 100 to fix. New 55 inch tvs are around 300, so wise investment is probably replace not repair especially if you are not handy or confident with electronics.

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My 50' 2005 fujitsu plasma starts with a few flickering lines and within a few minutes the whole screen is covered is horizontal lines - any ideas?


It sounds to me as though you have a faulty Digital board which can be repaired by Fujitsu.

Please call 0208 731 3432 for further help if needed.


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1 Answer

55 inch tv shut off will not turn on any more

velvel535, since you do get the other led's to light up it could be that you have an operable power supply and the problem is more than likely in the horizontal deflection circuit' a shorted h.o.transistor or components related to it.If the tv does have a good power supply you will hear some kind of noise when you push the power key though this is not a sure indicator of a good power supply. some repair costs for a horiz out problem can run up to 290 dolls depending on the problem.Please leave positive feedback if i answered your question.thanks!

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Purple and green rolling lines after lightning storm

I have exact same problem...other posts have cited improper grounding from the Cable...which makes sense as the problem does not occrr with the DVD...I have not figured out how to fix it though...

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Mitsubishi projection 55 inch

A couple of things come to mind I've seen a leaky capacitor on the regulated 9 volt line cause this and also leaky capacitors on the PIP module but I think the latter was on an older model than yours. If you don't know what these things are you should probably let a pro do it but it should be a fairly reasonable repair. Good Luck.

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1 Answer

Horizontal (dashed) line across screen

On the KDFE55A20 this sounds like a bad Q-Box. I would get an estimate from a Sony authorized servicer as this part may be quite expensive. On the 55A10 model this may be the B-Block and is also quite expensive. Getting an on-sit estimate would be the first step I suggest. Again go with an authorized Sony servicer. Call Sony or go to for customer service. Good Luck

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