03-03-2015, 03:05 AM
Sorry Mike. I linked the 2220 schematic and mine is the 2220B. Here is the correct service manual with the schematic. You regulate the voltage with R808. Looks like it feeds several boards.
http://akdatabase.org/AKview/displayimag...m=1&pos=45
http://akdatabase.org/AKview/displayimag...m=1&pos=45