service manual for Marsh A 400 S power amp

In a fit of cleaning I shorted the input to my Marsh A 400 S power amp. The right channel is now dead. No hum, no buzz....and no music. I can't see any melted components. If anyone who has a service manual or knows where I can obtain one would contact me, I would greatly appreciate it. NQ,Dennis.
I also need a service manual for A400s amp short out booth channel.
Did you find it? Any body?
Did you either of you find the A-400s service manual?  I also need service manual for A-200s. 

Between the two above models, is one model more refined than the other, and if yes, which model is better?  (Unrelated to magnitude of power, which obviously favorst the 400.) 
I believe I still have 400 manual at home. I'm replacing 400 with arc ref 150 this week 
my final major upgrade