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Sounds like you blew a fuse. You should locate the fuse and replace it. It might just be the fuse, but fuses usually when something's very wrong.
Try replacing the fuse.You might be lucky.
Hi J Wade. I'm Dave P. I'm not a guitar amp expert or technician but I've been using amps and effects for 35 years and there are a couple things I can suggest.
That kind of periodic noise/switch noise can be a symptom of having the polarity of the amp reversed. If your amp has a 3-position OFF/ground switch, try reversing the ground. If it doesn't, take the plug and turn it around. Just don't get near a microphone unless you're sure your amp is grounded the same as the P.A. It could fry your lips off.
Dirty switches to that too. You said the noise is in time with the delay's tap time which is set by a foot switch. If tapping that switch the first time generates a pop, the delay may have catch it and is repeating it. Turn off the amp, remove the delay foot switch and turn it back on. Still noisy? If not, give the foot switch a good cleaning.
When you turn the EFFECTS knob up, is it scratchy? Might need the potentiometer cleaned. What happens when you specifically turn the DELAY level down all the way while using the other effects? Noise still there?
That's all I've got. Hopefully, it was helpful. Don't wrack your brain over this too much. There could very well be an internal problem with your amp that will require a trip to the shop. You don't want to open it up yourself. Rock on but be safe.
There could be several reasons for your Kurzweil PC2x keyboard resetting to factory presets and purging all user data. It is possible that there is an issue with the keyboard's internal memory, or there may be a problem with the battery or power supply. Another possibility is that there is a software issue with the keyboard, such as a bug or a conflict with other devices or software. In order to troubleshoot the problem, you could try resetting the keyboard to factory settings and then reloading your user data to see if that resolves the issue. You could also try using a different power source or battery to see if that makes a difference.
If it is within warranty take it back to the shop. If not then its going to need an engineer to look at it. Its not worth fooling around inside a tube amp as the capacitors can retain lethal voltages even when unplugged.
The pedal is attached to a rotary reostat (volume control) - usually geared directly or connected with a belt. Make sure the connections are OK - it might have come disconnected or the wires may be broken - check the cables in the pedal and also the pc board they're connected to. If not. it may be the reostat that needs replacing
my vypyr 75 JUST did what you were talking about. From what I'm researching this has happened before and it's the fuze which is soldered to the circuit board. I'm taking it to the store I bought it from so they can fix it. I see you posted your problem a long time ago but I hope this helps someone new that it happens to.
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