I have a Vizio soundbar Model VSB200B which is overheating. This is evidently a common problem. The symptom is, during normal operation, the sound cuts out and its leds flash an error which indicate the soundbar has detected an overheat condition. After a short while, the unit goes back to normal operation, but having the audio cut in and out makes it unusable. I tried adding a fan to one of the ventilation slots which helped for a while, but now the problem has returned.
I opened the unit up and couldn't see any obvious area on the control board which might be the source of the overheat condition. The significant IC on the board seems to be an Avnera AV8112A, but I can't locate a datasheet for this component. Avnera was acquired by Skyworks in 2018.
My assumption is that one of the chips has an on chip thermal detection circuit and my next try is to glue some heatsinks on a few of the candidate chips.
Does anyone have a fix for this problem or experience in repairing this soundbar?
I opened the unit up and couldn't see any obvious area on the control board which might be the source of the overheat condition. The significant IC on the board seems to be an Avnera AV8112A, but I can't locate a datasheet for this component. Avnera was acquired by Skyworks in 2018.
My assumption is that one of the chips has an on chip thermal detection circuit and my next try is to glue some heatsinks on a few of the candidate chips.
Does anyone have a fix for this problem or experience in repairing this soundbar?
Comment