ZTX749 it is, got it off the board. Going to pick up a replacement tonight hopefully!

Sounds like I found the right place! Thanks!

So I recently bought an m100. As soon as I got it, I powered it up on my bench and found that it would come on even without anything connected to the remote input. I promptly opened her up to see if there was something crossed internally, but saw nothing obviously wrong. So I figured what the hell, ...