Vizio VX552XVT Inverter problem?

[agent11927]

I Have a Vizio VX552XVT and most of the bottom half of the screen is darker than the top half. It fades to a darker shade but still displays a picture. The backlight inverter board has a red light on it that flashes on and off continuously. The screen will flicker sometimes as well and the red light will go on and off with the screen flicker and make a clicking sound when it does it. Could this be a bad inverter board?

[agent11927]

Re: Vizio VX552XVT Inverter problem?

Here are some pics if anyone can help. The Clicking sound is coming from the board in the middle of the tv. I assume it is the panel that supplies the power.
Please help if you can. This is my first time taking apart a tv. I am also including a picture of what the screen looks like with the darkening effect. All of the capacitors look fine also.

[ben7]

Re: Vizio VX552XVT Inverter problem?

This is an LED backlit TV, correct?

If so, appears that there is an issue with the bottom LED strip. (shorted LED(s))

[ben7]

Re: Vizio VX552XVT Inverter problem?

This is an LED backlit TV, correct?

If so, appears that there is an issue with the bottom LED strip. (shorted LED(s))

[agent11927]

Re: Vizio VX552XVT Inverter problem?

This is an LED backlit TV, correct?

If so, appears that there is an issue with the bottom LED strip. (shorted LED(s))

Yes it is a LED backlit TV. Here is a better picture of the screen problem. As you can see there is half a shaded area on the top right half as well. If it is a LED Strip issue, is that easy to replace?

[ben7]

Re: Vizio VX552XVT Inverter problem?

Ah, That is strange. Actually it doesn't look like a backlight problem, but I don't know what could be wrong. There are some other members on here that will know more ...

[agent11927]

Re: Vizio VX552XVT Inverter problem?

Is it normal for the red light on the inverter backlight board to flash red?

[CAIIIA]

Re: Vizio VX552XVT Inverter problem?

Это именно та проблема, подсветки. Светодиоды часто перегретый в результате максимальной яркости. Эта работа является не столько сложно, как требуют в отношении точности. Обязательно используйте низкотемпературного припоя для пайки светодиодов. Но не имея опыта такой работы лучше не делать.

[CAIIIA]

Re: Vizio VX552XVT Inverter problem?

This is exactly the problem the backlight. LEDs are often overheated as a result of maximum brightness. This work is not so much difficult as demanding as to the accuracy. Be sure to use low-temperature solder for soldering the LEDs. But having no experience of such work is better not to make.

[agent11927]

Re: Vizio VX552XVT Inverter problem?

This is exactly the problem the backlight. LEDs are often overheated as a result of maximum brightness. This work is not so much difficult as demanding as to the accuracy. Be sure to use low-temperature solder for soldering the LEDs. But having no experience of such work is better not to make.

Can you point me in the direction of how to replace the LED's? Also is that clicking noise normal? Is does it constantly sometimes, but still displays a picture.