[Coco] serial port problems on coco2

[chris]

Hello list,

Im having a problem with my main coco2 now.

When I try and print anything the machine just hangs until I hit the  
reset. llist also makes it hang.

I verified that the "printer ready" high voltage is making it in to  
the machine by testing it right on the back of the port inside the  
computer. I hook the printer up to my 16K coco2 and it prints fine.

Could this be a problem with one of the PIA's?


Thanks

-chris