Re: Sony KDL-55W828B Hotspot in LCD panel



Thanks a lot dskall!

I got a picture back by the tape method. But there were significant horizontal lines visible so that the picture is not useable anymore.

So I decided to take the panel out to take a look at the backside on the hotspot area and was able to take a picture of it with my microscope (see attached image). Seems that the damage is to heavy to get a usable picture back from the panel.

That was an exciting first TV repair attempt and I learnd a lot. Thanks ...

Re: Sony KDL-55W828B Hotspot in LCD panel



I removed the side covers which hold the lcd panel, but there are no additional tabs on the left or right side of the panel. The only tabs are on the bottom attached to the driver board and and could not find any short there.

But with the whole panel exposed I could precisely locate the hotspot in the edge of the panel (see attached image).
I also found that some of the 75 Ohm resistors on the panel driver board also get very hot (see attached images). I removed them one by one to see if there is any...

Re: Sony KDL-55W828B Hotspot in LCD panel



Thanks a lot for this hint! I never heard about this method.

As far as I understood it from the videos, this is when a voltage is missing directly at the panel tabs. When there is a hotspot in the panel, this looks more like a short for me. Could this short also be in the side tabs?

I will give it a try, maybe I find something during inspecting the tabs ...

Hello everybody,

I need your expertise if my asumption about the failure of this TV is correct.

A Sony KDL-55W828B only shows vertical red stripes that vanish to the top when switched on.
When only the right side of the LCD is plugged into the T-CON board the right side shows a good image, while the left side is white.
When only the left side of the LCD is plugged into the T-CON board the LCD shows a complete white image.

I checked some signals on the T-CON board but was not able to find something strange. Then I checked the the caps...

Re: New Members - please post your introductions here

Hi I´m Ben, I love to fix all kind of electronic devices, especially notebooks, tablets and phones. In my opinion it is more sustainable than just buying new stuff and it also makes fun.
Great that a place like this one exists!