Peavey escort 2000 squeals

SOURCE: What kind of fuse is needed for the Peavey Escort

Hello. It takes a 5amp fuse, available at any auto parts store. Regards, J.

SOURCE: how hard would it be to change a fader control on

Changing faders USUALLY involves removing all panel hardware so that circuit board can be removed to get at the fader. It is often a LOT of work with a boit of hazards along the way.
If the control is noisy I want you to try something before replacing the fader. Get a can of CRC226 available at Home Depot in the Electrical department... about $2.70 for a can. Using the included plastic spout tube, squirt a bit into the center of the control where the knob is. Work it back and forth and then put a little more in and test if it is better or fixed.
NEVER use DeOxit or Blue Shower in faders!!!!! It removes the lube that is required in the fader.

SOURCE: I need a circuit diagram for peavey escort 2000

It does not look like one is readily available. Due to Intellectual property issues, you might have to contact PEAVY directly.