Re: 2465B Parametric Freq Measurement Error
All members of the 2465 family use interchangeable trigger hybrids.toggle quoted messageShow quoted text
To remove them, remove the four nuts at the corners of the module.
Tektronix considered them all to be "selected"... which I think meant
they tried them to see if they would work. the "-0X" suffix meant
changes in production usually... stuff like Tek vs Maxtek, or this
or that revision on their fabrication line...
I would suggest that your first attempted fix be to remove the module,
and clean the gold contacts with a Q-tip and IPA.
When you put the module back, seat it with finger pressure, and hold
it there as you finger tighten a pair of nuts on diagonal corners.
Then install the other pair of nuts. Tighten the nuts 1/4 turn past
where they just make contact. The tightness doesn't make or improve
electrical contact, so just 1/4 turn past the nut touching the hybrid
when it is touching the PCB.
I use one of the red plastic nutstarters that would be familiar to old
guys that built Heathkits. I wish I could find them new somewhere, but
I have enough to last my lifetime of used.
If cleaning the existing hybrid's contacts makes no improvement, then
swap in a hybrid from a working scope, and that should fix the problem.
Tony Fleming wrote:
Is my Tektronix 2465 DMS using the same part number or do I need a