What are the chances any of you guys have the service manual for the McIntosh PF-2520I-A head unit? I'm attempting to repair one for a friend of mine. The symptom is that it is stuck in "CALL" mode. When I took it apart I initially didn't find anything wrong with it. Then after MUCH closer examination (geez there are some tiny parts in here!) I found a blown capacitor, a possible blown resistor, and potentially a diode that no longer exists. Just some burned out through holes in the PCB.