Repaired vizio m320sl

[TJVJR]

I just wanted to pass this along in case it could help someone else. I was given this tv and it would do nothing . I found the fuse to be blown and upon further inspection a burnt component . It is circled in the picture but I do not (embarrassingly) know what it is but I had a good one from another ps board I had saved for parts . I soldered it in and it stopped blowing fuses and worked as it should . If some one can identify this component it would help and satisfy my curiosity as well .

[budm]

Re: Repaired vizio m320sl

That is a MOV (Varistor, as you can see, the designator is 'VAR??') for surge and over Voltage protection. The TV proably hit by surge or over Voltage condition.
For 120VAC line they usually use 150V rating MOV, it is hooked up between the Line and Neutral AFTER the fuse.
What did you put in?

[TJVJR]

Re: Repaired vizio m320sl

Everything was burnt off the bad one and the one I put in had no writing on it at all but they were identical in physical size .

[budm]

Re: Repaired vizio m320sl

Same size is does not mean the same Voltage rating, the TV will function without it because it is for protection only, so if it has higher Voltage rating then it may not protect to circuit from being badly damaged, there has to be some printing on the body if you remove the shrink tubing from it.

[TJVJR]

Re: Repaired vizio m320sl

That makes sense , I can check it. I am glad to know what it is. Should have occurred to me before. So as long as a good Mov is in the ps the tv will work but may not be protected from future surges . Thank you for the info , I could have mislead someone there with my post .