#1
So, today i plugged into my peavey XXX half stack and turned on the amp. After waiting for it heat up, i turned it off of standby. A loud crackling and popping noise preceeded. The amp reamined on, but all sound cut out, no hiss, no hum, nothing. The amp light and everything still remained on. I leaned over the amp and noticed a slight stench of somthing burning in the air, sort of like when a hair dryer overheats. I plugged my friend's Peavey 6505 into my cabinet and loop and everything ran fine, so i know its nothing obvious (wires, cables, etc.) Also, i noticed that all of my power amp tubes were glowing as usual, i couldnt see the preamp tubes as the are far in the back. Its not a blown fuse because i replaced the one in the back of the head near the power jack.

Please, any intelligent advice would be much appreciated.

Also, if i must replace the tubes, if i put the exact same kind of tubes in it, do i have to re-adjust the bias?
#2
I don't think it would be the tubes. I think it's a fuse, just not the main fuse. If it was the main fuse, your pilot light wouldn't be on.


Take the chassis out and look for burns on the PCB.
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#3
Quote by H4T3BR33D3R
I don't think it would be the tubes. I think it's a fuse, just not the main fuse. If it was the main fuse, your pilot light wouldn't be on.


Take the chassis out and look for burns on the PCB.


where might i look for these fuses? I have a feeling that if it isnt tubes, it may be the HT Fuse. I just dont know where this is.