tty
Hi Tom L
I will suggest some things that you can check before sending the board back to Geoff, Most of it is elementary, But that is what usually can trip one up...
trade the 6850's and see what that does, also check for bent pins--
check all Ic's for bent pins..
check that all the resistors , diodes, caps and transistors are in the ccorrect holes and well soldered on both sides...
check that you have it wired right between the jumpers and the connector ( signal table for tty)
switch port 0 to an rs232 and wire accordingly and see if it works as an rs232. then get it to work as an rs232 or if it works switch it back to tty...
that's all I can think of for now....
THANK YOU Marty
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