[TenTec] Paragon Issue Stumps Me

[Stuart Rohre]

You are doing the right things, to unplug and replug or clean the pins.

Now, you need to unplug each multi-pin cable one at a time and slide 
each back into its socket.  That may catch some oxidation of contacts 
and remedy it.

Another observational trouble shooting aid, is to check the temperature 
of the ICs to see if anything is abnormally hotter than its like 
components.

After 15 years, contacts in plugs and sockets may have light oxidation 
presenting the symptoms you report.

Also, solder that old may have a marginal connection that has failed.
Look with magnification for any cracked solder joints, not well wetted 
joints, and anything especially in the logic circuits.

GL,
Stuart Rohre
K5KVH