I recently zapped my speaker system. When I touched the volume control, the static electricity in my body discharged through the volume control to the amp (sub woofer). The voltages all seem normal on the board so I think I can replace the existing volume control with a rotary one, but I do not know where I can tie this into the board. Any body know where I can download a schematic for this system?

I can guarantee you, you didn't destroy the volume control with static. If there was enough voltage and current the the static charge, it would have taken your finger off first before it could have done that kind of damage to the potentiometer.

The imput circuitry on the board for the volume control is what is damaged. As much as a 1000 volts is possible through a static discharge. With very little amperage. This is what I have read from the net on this subject. The volume was controlled with two microswitches, I want to replace it with a potentiometer

Hopefully this will get you started in the right direction: Goto the manufacturer of altec lansing Acs45.1 and search for a schematic. If you can't find it there try searching for it at google.com. Try different variations of search words such as altec lansing Acs45.1, schematics, schematic+altec lansing Acs45.1, and so on. Once you get it then look for an IC Amp with 6 or 8 pins. (Most likely 8 pins and 1/4 watt power). Get the IC identification number and look for it on the board. It's probably located somewhere near the back where all the serial/parallel/usb inputs are. Then do a google search for a schematic of the IC. Once you get it, then you can find the Input pins to the IC Amp. If that IC is still operational (not blown out), then you can solder a stereo potentiometer to those pins and Gnd. Hint: You can also go further up the circuit and experiment. Be very careful. You're on your own!

Thanks Poemosophi for pointing me in the right direction. However I can't seem to find a schematic on google or anywere else. I have contacted altec lansing by phone and they refuse to release such info.

If you can't find a schematic, then search for a graphic of the board. They usually contain labels (with names) and arrows pointing to specific hardware such as PCI slots, audio amps, onboard A/V 3D chips, clock, and so on. A picture is worth a thousand words! Or you can try running an Input signal INTO the Output jack and trace it back to the amp. Do this at your own Risk. You're on your own!