Check out:

http://members.tripod.com/quick_svx/.../42748814.html

otherwise, search for "resistor crush" here, or in the archives do "resistor AND crush" (both without the quotes of course).

Hopefully that'll get you going in the right direction ... I'm stuck on a modem right now (arrggg), so I dun really feel like trying to search around. I'm sure you can find something if the TSB doesn't give you the directions you need...

-Colin