Cobra 2000 took a bump and is now wacky

Hello everyone,

I recently sold my Cobra 2000 on eBay and as luck would have it, it must have taken a few rough bounces during shipment. It was returned by the buyer, so here we are. Here is the problem......

My channel frequencies are duplicated. Channel 18 and 19 are both 27.185. Channel 20 is ok. Channel 21 and 22 are duplicates. This pattern continues throughout the band.

I have verified this with an external frequency counter also.

Any ideas? Thanks in advance.