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Philips TV turns on with sound no backlight

Hi guys,

I got this problem with my tv, when I power the tv on the logo appears for 2-3 seconds and then it's all black. The sound is still there, the ambilight reacts normal, but no image.

What could this be? I know a part of the LED strip is broken and I already bought a new strip, but I don't know if this would fix it because my other Samsung TV had a defective LED strip to but still had a picture. I also couldn't find any bulged capacitor or anything.

The only difference with these tv's are the Samsung is direct-LED and the Philips edgelit.

Model is: 42PFL6678k/12

EDIT: Picture and video

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Update (11/07/2017)

I got the tv working again, but the light doesn't cover the whole screen?!?

Now i'm stuck with what to do, because I already replaced the tcon board and led strip.

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Beantwoord! Bekijk het antwoord Dit probleem heb ik ook

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Ja Nee
Score 5
2 opmerkingen

@jellealgra Philips is a bit funny with their schematics. What is your TV's chassis number? does QFU1.2E LA look about right?

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42fp5532s/05 TV has been stored over 6 months plugged in and the red light is flashing light comes on for about 5 seconds and then afterwards too flashes what does this mean

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@jellealgra you already have it solved:-) "I know a part of the LED strip is broken " this will most like prevent the rest of them to come on. This is a Philips not a Samsung. Everybody does it a bit difference. You cannot rule out a bad backlight until you have replaced that. You said you checked the boards. Did you have a chance to check all the fuses as well as the T-con board. Post some images of all of your boards with your question. That would allow us to see what you see. Use this guide Voeg afbeeldingen toe aan een bestaande vraag for that."Not much you can do to these tvs today" is wrong. You can change each and every single board on these which you could have never done on a CRT. This is fixable, so repair what you know is already broken and then re-evaluate and let us know. Keep repairing, not replacing!

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Ja Nee
Score 2

8 opmerkingen:

I'm not home at this moment so this is all I got, a picture of the Power supply and a video of what the TV does. I forgot to mention that I bought a new T-con board because I thought that was the broken part. I'm waiting for the parts to get them finally in, but i'm not sure if it would fix it. That's why i made this topic.

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There is never a 100% for sure unless one has the schematics and did all the measuring. I think it was a good idea of you to order a T-con board. If nothing else it will provide you with a known-good board in case you have to do more troubleshooting.

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Okay, i'll wait until I replaced those parts and see if the problem still exists. If it does what would you consider to replace first, the power supply or the mainboard?

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Personally I'd go with the power board first.

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Thanks, if the other parts doesn't fix it In will replace the power board!

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I had the same probl with a phillips43" Lcd. I bought it at walmart. I called customer service with asurion. They had me cycle the tv a few times . They had me send the set in for repair. Not much you can do to these tvs today. They either work, oe they need to be replaced. If your set is under a month old and purchased at walmart. Go online and insure it with asurion. The refunded the price of the set plus tax. I then added a few more bucks bit upgreaded frpm a 43"to 55" with a new ploicy. Now when this tv goes, I will upgrade to a 65".

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Ja Nee
Score 0

1 Opmerking:

The TV is 2+ years old, if I would sent it to customer service for repair it would cost me a lot of money. I can replace everything at my own fortunately, but to keep the cost down I need to know where the problem is.

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Jelle Algra zal eeuwig dankbaar zijn.
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