Troubleshooting Philips 55 LED TV(horizontal lines and discolouring)

[keweik]

The TV is a Philips 55pfl5527t/12 where i issue is horisontal lines with weird colours. I've tries to factory reset, hard reset and software update. Did also clean the ribbons connected to the TCON unit. Should i just change the hole TCON?

[nomoresonys]

Re: Troubleshooting Philips 55 LED TV(horizontal lines and discolouring)

Looks like panel failure.

[SLK001]

Re: Troubleshooting Philips 55 LED TV(horizontal lines and discolouring)

I would say that it does look like a panel failure EXCEPT that the horizontal lines do not run entirely across the screen. This MAY be just a TCON failure and I would say that you might be able to save this unit with a new TCON. There is also the possibility of problems with the panel PCBs that the TCON connects to (shorted component, bad cap, etc). To access the panel PCBs, you have to remove the panel bezel.

[nomoresonys]

Re: Troubleshooting Philips 55 LED TV(horizontal lines and discolouring)

I would say that it does look like a panel failure EXCEPT that the horizontal lines do not run entirely across the screen. This MAY be just a TCON failure and I would say that you might be able to save this unit with a new TCON. There is also the possibility of problems with the panel PCBs that the TCON connects to (shorted component, bad cap, etc). To access the panel PCBs, you have to remove the panel bezel.

Agree good plan of action, it may be a candidate for a tab bond shim if it's a tab bond problem, i.e. if tcon isn't at fault.

[Davi.p]

Re: Troubleshooting Philips 55 LED TV(horizontal lines and discolouring)

No way, it's a bad gate driver's problem, so bad panel.

[CapLeaker]

Re: Troubleshooting Philips 55 LED TV(horizontal lines and discolouring)

Looks like panel failure.

I think so too.