I have a JBL/Urei 6215 amplifier that has a bad STK2240 output chip that I am going to replace. I have a copy of the owners quasi service manual, but I cannot find any information on how to bias the amplifier. It looks like there is a bias pot for each channel, but again no information on where to connect a meter, what the reading should be etc.

Below is a link to the manual that I have:
http://www.jblproservice.com/pdf/Vin...5%20manual.pdf

Any help would be greatly appreciated.

Thanks