I have a 7100 that won't power on. There was a lightning storm and it died, may it rest in peace. It is now out of warranty; is there anything I might try to resuscitate? Just wondering... Also, there was a power outage at a different facility and that 7100 now boots with with DSP errors and DSP not running message. Data is working. I there anything I can try to repair that unit? It is also out of warranty. Thx.