Same I was shredding on guitar then my behringer ultra bass bx1200 died while playing The Call Of Ktulu I was so easy on the strings then I heard a loud noise it happened today.

you got lucky steve... my crate GLX212 combo is messed up & after 10 min. or so, the sound just fades away, like somebody was slowly turning down the volume knob. i turn off the amp fir about 15 min. and it comes on & plays normally , for about 15 min. ive look & watched every vid on you tube & i only find reviews & closely similar amps.

you have to work for amp

Hope it works out for you! Let me know if I can help.

Check your connections for the reverb and clean out the switches and pots. Hopefully, the reverb tank isn’t shot. Check out my channel and look through the service videos. I did videos for a Peavey amp, for a Crate amp, and for a Univox amp. I think those will show how I service solid state amps. Good luck!

Hi Tim. Good question. Three reasons: First, the fan wasn’t coming on and I was under the incorrect assumption that it was supposed to start spinning upon initial power up. I was looking for the cause of that too. Second, the video wasn’t just about showing how to find out what was wrong with this particular amp, it was about showing steps you can take to narrow down the possible issues. There were a couple of steps I performed in this video that I would have skipped if I hadn’t been making the video. But simply unplugging a speaker, testing continuity, then changing a cable doesn’t make for an interesting video. Third, all the stuff I work on in my videos is mine and part of the process for me is cleaning up the amp. So although I didn’t show it (I do on other videos) the amp was torn down as part of the cleaning I did. Thanks.

avega2792 yes, crackle when you turn a pot is an indication that it needs to be cleaned.

Yes they do yes they do indeed laugh out loud

🤷‍♂️😅

I can’t say for sure without having it in my bench, but I would say it sounds like the main electrolytic capacitors on the power rail need to be replaced. Sometimes you can tell if they’ve gone bad by checking them for bulging and/or leaking on the board.

@@davetriestofixstuff4744 okay!! Thanks I’ll definitely check that out!

That's a pretty broad question without knowing anymore about it. If it's the distortion built in on your amp, try cleaning all the buttons, pots, jacks, etc... using deoxit or something similar. Good luck!

Start with the simplest first. 1. Is the fuse blown? 2. Is the switch getting power? 3. Is the transformer getting power? 4. Is the transformer putting out power? See if all of those things are doing what they’re supposed to. Zero power would normally mean that it’s one of those. Good luck!

Oh, and check to make sure you have a good power cable.

@@davetriestofixstuff4744 the power cable is fixed does not detach My amp is the one that has fdd No tubes inside But I did read there may be a fuse inside Sounds like a stupid design

@@davetriestofixstuff4744 I replaced the power switch and fuse nothing and when I pulled out board carefully the main volume pot snapped the transformer must be bad had to piss off amp keep it for parts I bought a Marshall code 25 cheap $152.00 Marshall is worthless for parts support and not even a schematic is available anywhere

Cricket the fuse didn’t blow. It was a bad plug end on the speaker cable. My bass player has actually been using this amp at rehearsals for over a year without any issues since. Not the greatest bass tone in the world, but I’ve been impressed with its ability to keep up during a rehearsal with a full band.

Dave Tries To Fix Stuff Yeah I use it in a home studio. I find it a great little amp. Went through a fuse blowing stage. Changed the type of fuse and no problems since. Great tutorial! I will use it for future reference. 👍🏻 Thanks.

I don’t think you understood the purpose of the video. That said, I’m sure you’ve made a much better video on your channel showing how to troubleshoot an amp. Feel free to post a link to it here.