Sharp LC-42X20E: What is "control board"?

[asi6]

Hello all. My Sharp Aquos 42x20E stop working. The led blink code is 2x porwer led and 4x OPC led. I found in this forum this is a possible failure of the main board and power board (I found no leaked or burned capacitor).

Anyway, past week I take it to the official Sharp tech service in my city, fist they said that should be main board, today I went to talk with them about money and said the problem is the power board and the "control board". In the beginning I was about to change the main board by myself but now I'm not sure what to buy because I'm not sure what is the "control board". Any idea?
They ask 200€ for a reparation. Worth it?

Thank you!

[newtothis]

Re: Sharp LC-42X20E: What is "control board"?

They are talking about the T-con board.

I am dubious about their diagnosis TBH

Either way it is cheaper to swap out boards yourself if that is what they are going to do. Component level repair is cheaper still.

Either way I would get the set back and come here, We will guide you through finding out what boards are at fault and maybe even offer enough information for you to repair the boards themselves.

You will of course at least need a multimeter

[asi6]

Re: Sharp LC-42X20E: What is "control board"?

Thank You, I am going to do it by myself. I think I will swap boards

[newtothis]

Re: Sharp LC-42X20E: What is "control board"?

Ok when you get it open take good clear pictures of each board, one of overall layout so we can see the boards connected together and close up good quality shots of any connectors so we can see the labels printed on the board.