Raimon,
If your diode voltages differ from the chart by more than 20%, that may
indicate a problem. The chart was created from readings on one KPA100
which was working properly, but that KPA100 may not have been exactly
typical (meaning component tolerances were not checked for
mid-tolerance values), so some variation is expected and is not an
indication of a problem.
The oscillation possibility is an 'educated guess', so do change C31 and
then if a problem persists, we can offer additional assistance if you
give us data and your observations/conditions.
73,
Don W3FPR
raimon wrote:
Dear Don
Many thanks for your prompt reply and information.
C31 in my KPA100 is 0.033 mf, I did not receive it with the upgrade
kit and I forgot to change it.
I will try to get it from a local supplier, either .22mf, .2 mf or two
.1 mf as you suggest.
Most voltage diodes readings agree with the new chart, but there are
still notable deviations.
If you believe that my problem is caused by an oscillation, I will
wait until I can substitute C31.
If you suspect any other reason, I will send the voltages chart again
in a more intelligible way.
Many thanks again, I hope to have soon my K2/100 working again.
73
EA3EZO
Raimon
[EMAIL PROTECTED]
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