thx again for your advise, Karl ...
That worked for me too,- even I cleaned \ufffdem in addition.
I now saved the replacement encoders in my tool box and saved time because the soldering job was obsolete.
Am 15.04.2013 00:22, schrieb Karl Schmeer:
\ufffdI found the schmidt trigger chips, which de-bounce the encoder signals were failing.\ufffd I
replaced all of these and it's\ufffdworked fine ever since.