Bill,
If it were a bad PIC chip, the results would be consistent. Reseat the
KAT100 firmware Ic to clear away oxidation.
Look for a flaky connection on the Control cable - at both ends.
There is not much that you can diagnose with a 'scope other than to
determine that the chip is getting transitions to it.
If you want to reverse engineer the K2 AUXBUS, then you could make some
determination of the AUXBUS correctness, but that is a difficult
exercise in futility IMHO.
73,
Don W3FPR
On 8/5/2018 5:36 PM, Bill Coleman wrote:
Jack screws appear to be tight on both ends.
After I cycle the power 6-12 times, it will eventually come up. I wonder if I
have a bad PIC chip in the KAT100. I may try an older version of the firmware,
I think I have one. That will take a few days.
I can put a scope on Pin 40 of the PIC chip. I see transitions. Anything I can
diagnose with a scope?
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