philips 55pfl5527t/12 Problem

[Janne87]

Hi!

I have a Philips 55 inch led tv. The model mentioned in the topic.
The TV was previously used daily for extensive periods of time to show school schedule ie. static image.

Then the tv got broken and I salvaged it from being thrown to electronic waste.

Symptoms:
First horizontal lines appeared on the screen. By time the problem got eventually so bad that the image was completely unclear. The screen also has darker are in the middle which gets smaller after a moment of having it on.
Also when I tested the tv I was unable to get sound from the tv loudspeakers (might be that I was just not able to adjust the volume..)

What is your guess? What might be the faulty component? Could it have something to do with the T-con board? Im afraid it might be a bad panel but would want to investigate.

Here is an image that the tv shows. the lines kind of vanish after few minutes of operation but no image whatsoever.
The screen does not produce any image on the sides of the screen.

I already now thank all of you that can help with this.

Janne from Finland

[tvtimmy]

Re: philips 55pfl5527t/12 Problem

Unrepairable lcd panal faiure.

[Davi.p]

Re: philips 55pfl5527t/12 Problem

I don't think is bad panel... if you can i would test some points on the tcon. Let we read some other's opinion or just to make it short upload a sunlight photo of the card, hi res...

[Andrew F. Ali]

Re: philips 55pfl5527t/12 Problem

Panel looks OK. Clean and re-seat cables from Main Bd to T-CON Bd and cables from T-CON Bd. to the Panel. Possible Backlight issue, too.

[budm]

Re: philips 55pfl5527t/12 Problem

Bad panel.

[Janne87]

Re: philips 55pfl5527t/12 Problem

Thank you so far for the replies!
Yes, some have strong opinion that it's a bad panel. That might be true.
In any case I already ordered a replacement T-con just to rule out that option. I will try that. That costed about 10 euros so no big investment.

I will also clean the connections as adviced.
What would be a good method for that so that I don't ruin something with too harsh methods?

I attach a picture of the current T-con board.

Janne

[Davi.p]

Re: philips 55pfl5527t/12 Problem

I don't know the utility of tcon picture if you have ordered one other...
cleaning ribbons is easy, normal alcool on a piece of cloth.. it is not that it passes there the pigs..

[attainteddragon]

Re: philips 55pfl5527t/12 Problem

disconnect one ribbon cable that goes from the t-con to the panel and see if you get half of a picture, then reseat it and do the same for the other half. if you can get half a clean pic with one half but messed up with the other half, then you will have a panel fault most likely.

good luck.

[Janne87]

Re: philips 55pfl5527t/12 Problem

Hi!

Now the new T-con board arrived but unfortunately it has some component that is placed in a position named "45 inch" and the old one has the component in "55 inch" position. The tv is 55 inch.

I concluded the test with cable ribbons removed on either side and then with the new T-con board.
1. ribbon removed: full screen is black and no lines visible.(pict no end:2456)
2. ribbon removed: other side is black and other side has lines and grey (pict no end:2925)
3. new component: some parts are black and majority of the screen is showing grey with lines. (pict no end:3539)

Pictures in attachments.

I also cleaned the cables coming to and from the T-con board.

What do you think?

Thank you for your help!

[Andrew F. Ali]

Re: philips 55pfl5527t/12 Problem

Panel fault, sorry.

[budm]

Re: philips 55pfl5527t/12 Problem

Post 5.

[attainteddragon]

Re: philips 55pfl5527t/12 Problem

+1 for panel failure.