e421vo orange light only

[Salvamex]

Re: e421vo orange light only

When I checked the micro fuses I got 0.0. ohms reading, the same as touching the probes together.

[Salvamex]

Re: e421vo orange light only

I get 0.0 ohms.

[selldoor]

Re: e421vo orange light only

Good - we really need better pictures.

[Salvamex]

Re: e421vo orange light only

When I checked the micro fuses I got 0.0. ohms reading, the same as touching the probes together.

Hope these are better pictures

[selldoor]

Re: e421vo orange light only

Main board is excellent can you do similar for the power board

[Salvamex]

Re: e421vo orange light only

Okay, here they are.

[selldoor]

Re: e421vo orange light only

Just been looking at the previous pics in pic 4 what has happened at SW1.
You will need to clean it up (very carefully) so we can see if any of the traces have been destroyed

[Salvamex]

Re: e421vo orange light only

I have not mess with that at all, it came like that from the mfg.
how do I clean it, or what do I use to clean it?

[selldoor]

Re: e421vo orange light only

Isopropyl alcohol seems to shift a lot of debris. The bit that concerns me is the apparent blob of solder between the traces you will ahve to be very gentle - soft toothbrush or similar.


Is this a Brand new board ? Where did you get it - perhaps it should go back?

Also id still like to see the old boards so we can compare and make sure you have the correct replacements

[Salvamex]

Re: e421vo orange light only

I dont have the old boards and this is a tv that was returned to the store brand new and it was given to me because it did not work.

[selldoor]

Re: e421vo orange light only

You are not making it easy to help you. It took ages to get to
"I already changed the power supply with no results, changed the main board twice with no results."
and then you say "it came like that from the mfg."
Now you say "this is a tv that was returned to the store brand new and it was given to me because it did not work."

So I am trying to establish if the boards we are now looking at are brand new or could have been reworked/repaired . If as you say you replaced them where did you get them from and before you work on them could they be returned?

[Salvamex]

Re: e421vo orange light only

Okay here we go:
the tv was given to me free, the tv was a returned from a customer that bought it brand new.
The tv would not turn on, it only showed the orange logo light so I bought a ps board, but the tv would not turn on either so I returned the ps board and bought the main board.
When I installed that board the orange logo light did not turn on and neither the tv.
So I returned that main board thinking that it was a bad board and got another main board, with this board the orange light did come on but again the tv would not turn on.
So I returned the board and now I only have the original boards that came with tv.
Sorry for all the confusion.

[selldoor]

Re: e421vo orange light only

OK - got it now so had any luck cleaning up the boards near switch 1. What does it say that switch does?

[Salvamex]

Re: e421vo orange light only

I took out the stain but everything looks normal.

[Salvamex]

Re: e421vo orange light only

It's the power on switch

[tom66]

Re: e421vo orange light only

Likely factory rework... not really going to be a problem. Could be the EEPROM issue a lot of Vizios have. Maybe the other main boards had it too.

[selldoor]

Re: e421vo orange light only

I have spotted another fuse - at least I dont think its been mentioned. In the last lot of pics on the main board front top right corner F3.
Otherwise I think you may have to try the eeprom which I think you thought in the first place?

[kevinm34232]

Re: e421vo orange light only

I am thinking it is the main board and you may have ordered the wrong board, you had 1 that wouldn't do anything and another that just showed orange logo. There are so many Vizio threads going on now Im confused but are you sure you ordered the correct main board, and from where??

[selldoor]

Re: e421vo orange light only

Kevin please read post at 12.59 today.- no replacement boards

[Salvamex]

Re: e421vo orange light only

I ordered it from shopjimmy.com and the other one from ebay.
How do I check f3 fuse?