RS232 locked up

Tom Crowley

Had the P.S. go bad and send a lot of AC ripple into my D700 I use for a base and an Igate.
Radio checks out ok on TX and RX but can not talk to it with a PC.
I have tried Kenwoods programming software to check the channel info and the Igate software can not talk to the radio.
I have tried different PC's and cables.
The only thing I have not tried is Reset, If that does not open the RS232 port I won't be able to reprogram with a PC all by hand.
Has anyone seen this and how was it fix

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