Hi everyone,
Thanks for your answers.
I've also checked other 53132A related topics, lots of discussions and information.
In particular, about how to switch to a less noisy fan or how to calibrate (there is even a calibration fixture in the work).
It would benefit us all if we can put all the related information on one webpage, KO4BB comes closest to that.
One more question, I've noticed that latest available firmware is "4613". That would be 2006 (HP serial number is 2 first digits + 1960).
Will that work with any hardware revision of the 53132? In particular, early ones? Mine has serial number 3546A...
Best regards,