[Milsurplus] Sunair question

[Robert Nickels]

Can anyone tell me the difference between the cinnercuak Sunair 
GSB-900DX HF transceiver which I have, and the military verison, 
AN/URC-92, which I have downloaded the manual for.   They appear to be 
the same radio but I've found some differences in the power supply 
section, for example.  Mine is so broken - nothing works, no audio, 
synth knobs erratic, so I suspected a common problem like p/s - which 
led to this question.   Also, I'd really appreciate hearing from anyone 
who has experience in working on this transceiver, or who may have the 
commercial version of the manual. 

Thanks and 73,
Bob W9RAN