Yamaha R 100 needs repair

[RICK PURDUE]

I have a Yamaha R-100 receiver needing repair. Lost sound on one side.
Looking for an expert Yamaha repair center in U.S that knows this model..

 

[avionic]

Welcome aboard Rick. Whats your location ?

 

[RICK PURDUE]

San Dimas, Calif. near Los Angeles.