Guys and Gals,
Need some help with an HP 8591E. Need passcode to set timebase. Devault passcode is freg -37 hz. That will let me verifiy the time base and adjust the timebase DAC in cal mode. Preset sets timebase back to orginal DAC.
But, when I try to open timebase under service menu. Says I need a passcode and I can't find it in the manual. It maybe there but it was late and I was tired.
PapaBear
Here's a bit on it, hope the files sticks.