Can my SAR V3 be repaired?

My SARV3 is dead. no lights turn on, does not provide any field output. I disconnected the power input to the SARV3, to test engines without alternator output, plugged the wire in again after testing and it wil not turn on again. I know it is the SAR beacuse I have a second SARV3, just unplugged the harness from the dead SARV3 into the spare one, and the spare SAR V3 is working fine. It has worked fine for 7 years aprox.
Any idea abaout repair cost vs new one? WHere shall I send it to?
Thanks, Igor
Any idea abaout repair cost vs new one? WHere shall I send it to?
Thanks, Igor