Re: Vizio M401i-A3 backlight and sound but no picture

Oops, I already forgot this board allows picture attachments, even though I used them

Here's the relevant pictures.

I don't see any visible problem with the edge board, so the panel (and TV) is probably a write off then?...

Re: Vizio M401i-A3 backlight and sound but no picture

Sorry for not replying earlier, the weekend kinda got away from me.



I do.



Disconnecting the right-hand panel cable (seen from rear) results in no change, backlight no picture.
Disconnecting the left-hand panel cable (from rear) results in that side of the panel (right side from front) solid white, and the other works normally....

Re: Vizio M401i-A3 backlight and sound but no picture

F100 (the really flat one with "P") is continuous

I have gotten for free a Vizio M401i-A3 LFTGOZAP that has backlight and sound but no picture, solid black. I gather from skimming a few other threads that I should be looking at the TCON board. I don't have an oscilloscope and haven't had any luck finding a service manual; are there any tests I can do with a multimeter that would be useful?

The power supply capacitors look fine.

I've seen a very large thread on the e701i-A3, but this unit only has one LVDS cable from the motherboard to the TCON, so it's pretty different from the e701i-a3.

TCON is labelled:...

Re: New Members - please post your introductions here

Hi, I used to play with electronics years and would like to get more serious about actually doing things instead of just remembering how it used to be fun.