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Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 15009
Experience:  20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS
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50 in vizio smart led tv... had an air connditioner plugged

Customer Question

50 in vizio smart led tv... had an air connditioner plugged into same circuit ant a breaker blew. Now whe. The tv powers on the screen dimly flashes on and off. So dim that you can only see it with lights in house off. You can see th no signal or the menu when it flickers on. I have already put good power and main boards in... whats next?
JA: Can you guesstimate how old your Vizio is? And just to clarify, what's the exact model?
Customer: E500i-A0. Guessing 5 yrs old
JA: Does the TV menu work? Do you have the same problem on all sources/inputs?
Customer: Yes. You can see the menu but it flashes off so quickly its impossible to use
JA: How long has this been an issue? What happened right before this popped up?
Customer: Nothing it was working fine until the breaker popped
JA: Anything else you want the Expert to know before I connect you?
Customer: Not that i know of
Submitted: 1 month ago.
Category: TV
Expert:  Anthony_Infotech replied 1 month ago.

Hello
Welcome
I am sorry you are having trouble here,I am presently reviewing your question be with you very soon.

Anthony

Expert:  Anthony_Infotech replied 1 month ago.

It could be back-lights or t-con board, do you see a period of just a dim feint light?

Customer: replied 1 month ago.
Just for a split second. I dont see a t-con board on this tv
Expert:  Anthony_Infotech replied 1 month ago.

It may be hidden under a shield usually at the top of the set,trace the LVDS lead from the mainboard usually a ribbon lead that is wide to it

Expert:  Anthony_Infotech replied 1 month ago.

Or it could be bad backlights these can flicker and go off and on

Customer: replied 1 month ago.
The ribbons go from the powerboard and disappear into he panelnothing else here
Expert:  Anthony_Infotech replied 1 month ago.

No the mainboard?the one with all the INPUTS on like hdmi there is one lead you cant miss it

Expert:  Anthony_Infotech replied 1 month ago.

Usually a thick lead or a wide ribbon lead goes right to t-con

Customer: replied 1 month ago.
Yeah i know what the mainboard is. You said it may be t con board... here is none on this set
Customer: replied 1 month ago.
My tv is an a0. Not an a1
Expert:  Anthony_Infotech replied 1 month ago.

You see the ribbon leads going behind the metal its behind there at the top so trace those two longribbon leads right to it sometimes they can be a pig to get out because they put it behind the metal

Customer: replied 1 month ago.
What the heck...
Where did they hide the thing?
Expert:  Anthony_Infotech replied 1 month ago.

read above

Expert:  Anthony_Infotech replied 1 month ago.

And do not order that board you have to order from the partnumber found on the original board

Customer: replied 1 month ago.
Here? This is the bottom. They look to be plugged into the panel
Expert:  Anthony_Infotech replied 1 month ago.

No you can replace it but you have to get the metal off,

Expert:  Anthony_Infotech replied 1 month ago.

Please keep an eye on my replies above we have probs with that

Customer: replied 1 month ago.
Maybe im an idiot here... but what metal do i need to take off? The metal that the boards are mounted too? Which would mean the panel needs to come off not?
Expert:  Anthony_Infotech replied 1 month ago.

I don't know without being there, that board is replaceable or it would not be available as a spare

Customer: replied 1 month ago.
Right. Did u get the pictures i sent?
Expert:  Anthony_Infotech replied 1 month ago.

take some more I will try and work it out but usually this is not poss, they just do it that way to be awkward or they make it easy its not poss to remember every way they do it which is whyi cant give you a commentary onwhat to do to get it out

Customer: replied 1 month ago.
I will just dig into it. Its no good as is. Thx
Expert:  Anthony_Infotech replied 1 month ago.

Well hopefully it is that as I say it could also be bad back-lights its difficult to say

Expert:  Anthony_Infotech replied 1 month ago.

Hopefully my input is worth a positive rating, rating bar of stars is top of the page thank you, ***** ***** will then release some funds to me thanks