So I just wanted to post this up for anyone googling the issue (Because none of my results fixed my problem), My F76 shutdown issue on my panasonic q was the fan not spinning. I'm going to try to find a replacement but for now when it does this shutdown I just move the fan ever so slightly at the beginning and it runs fine. Most of the results just said it was a power supply issue, which is fair because if I remember right the fan plugs into the power supply directly.