Hello,
I have been working on a vizio tv for a few weeks now, original problem was bad caps on psu. After changing the caps the tv would not turn on, found bad voltage regulator u33 and replaced. TV ran fine for 2 hours and then went dark.
Once again found u33 had gone bad. Replaced and tv ran fine for 3 hours then went dark. Ordered a new mainboard and installed tv worked for 6 hours then made fizzing sound and went dark.
Replaced mainboard again, tv ran for about 5 minutes before making a fizzing sound and going dark, any thoughts on why this tv keeps destroying mainboards?
I have been working on a vizio tv for a few weeks now, original problem was bad caps on psu. After changing the caps the tv would not turn on, found bad voltage regulator u33 and replaced. TV ran fine for 2 hours and then went dark.
Once again found u33 had gone bad. Replaced and tv ran fine for 3 hours then went dark. Ordered a new mainboard and installed tv worked for 6 hours then made fizzing sound and went dark.
Replaced mainboard again, tv ran for about 5 minutes before making a fizzing sound and going dark, any thoughts on why this tv keeps destroying mainboards?
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