Hi! I picked up a TM60 over the weekend from someone a few hours away. I didn't have good chance to check it out thoroughly. Dude send me a video showing that the amp worked as he twisted some knobs and pushed some buttons and I heard sound, so i thought it was good enough to buy without further checking. Turns out there's basically no volume on channel 1. if i hit the channel switch to ch2, the amp works fine. but when i switch back to Ch1, no sound. well, basically no sound. if i turn all 3 knobs up to 10, i hear a faint sound. So i did my research, and figured I needed to Deoxy it from head to toe, especially the loop jacks. I took out the chassis, sprayed everything down, and did all the jacks directly and plugged it in/out many times. I put the chassis back in, and VOILA, Ch1 works perfectly! Sounded great and I couldn't be happier. Then i turned the amp on again today, and the same situation. ugh. pulled the chassis again, sprayed everything down again, and Ch1 came back! but then I took the cord out of the amp, plugged it into another amp to compare tone, and when i plugged it back in, Ch1 didn't have any sound. Yes, i can pull the chassis again, or just try spraying the loop jacks again, but this doesn't sound like the typical issue. I even left the loop jacks connected by a 6" cord, but still no sound on Ch1. Any ideas or suggestions? I don't think i'm going to be able to return it, so i want to see what y'all think the issue could be and hopefully something i can fix. thx!