Vizio M422i-B1, blown main caps, the plague or something else?

[DXseekerMO]

Today I bought this Vizio M422i-B1 with the complaint of white smoke coming from within the back of the TV. I found the two main caps are blown on top with a trail leading away from them. Even with this jacket the TV still works, turns on and otherwise functions normally.

My first impression when I saw the caps was “not original”. I could be wrong on that…..but they are rated at 220V/120uF.

So my question, is this capacitor plague related or should I be looking for a reason they blew?

[budm]

Re: Vizio M422i-B1, blown main caps, the plague or something else?

The caps are bad for sue but I do not see any liquid coming out on the top based on the pictures, I would say just replace the caps. BTW, the power supply does not have PFC Voltage booster so 220 ~ 250VDC rating caps will be fine.

[DXseekerMO]

Re: Vizio M422i-B1, blown main caps, the plague or something else?

Thanks budm, I will order those caps tonight. One more question, the caps have some kind of white paste/glue that hold them to the board. I need to get me some of that. What is it and I'm sure DigiKey has it?

[budm]

Re: Vizio M422i-B1, blown main caps, the plague or something else?

Silicone RTV will be fine for that purpose, or hot glue.

[DXseekerMO]

Re: Vizio M422i-B1, blown main caps, the plague or something else?

So after selecting economy delivery the caps came in this morning, I installed them and all appears to be well!