MadAsAHatter
Well-known member
Not sure what is going on with my Randall RM100. Played fine the last time I used it a few days ago. Today nothing.
From what I can tell it appears there's no power going to the power tubes. They're not glowing or getting hot at all. Everything else is coming on even the fan. I checked all the fuses; both for the tubes and the internal ones and also the main fuse. None are blown and all have continuity. I swapped tubes for new one and still the same thing. I ran a line from the fx loop send to my powerstation and I got sound. Preamp tubes were on, I was able to switch modules, etc. Everything on the preamp side seems to be working fine which at least narrows it down to the power amp side. That's about as far as my trouble shooting knowledge can go. I suspect it'll end up at the shop for repair. Before I bring it in is there anything else that's simple enough to check myself?
From what I can tell it appears there's no power going to the power tubes. They're not glowing or getting hot at all. Everything else is coming on even the fan. I checked all the fuses; both for the tubes and the internal ones and also the main fuse. None are blown and all have continuity. I swapped tubes for new one and still the same thing. I ran a line from the fx loop send to my powerstation and I got sound. Preamp tubes were on, I was able to switch modules, etc. Everything on the preamp side seems to be working fine which at least narrows it down to the power amp side. That's about as far as my trouble shooting knowledge can go. I suspect it'll end up at the shop for repair. Before I bring it in is there anything else that's simple enough to check myself?