[1000mp] No receive on Mark V

[Yuri Onipko]

Hi.
I have the following problem. I was in the middle of QSO (transmitting) when
we suddenly had a power outage. I turned the POWER button OFF and when we
finally got power back, I turned my radio ON again.
However, there was no receive on any band. Just "white noise", like there is
no antenna connected at all.
I tried to connect coax to another input ("B") - same thing. I did memory
reset and then - master CPU reset. Nothing helped.
However when I transmit I have 100% output power (200 W) on all bands.
I checked my antenna coax with another RIG - it works fine.
Before I'll go any further and try to do anything else, I would like to hear
opinions from experienced people what it could be. Would appreciate any
comment.
Thanks.
Yuri  VE3DZ