This 53132A counter was suppose to work well, as described by the seller but it is dead.
Symptoms: No display on, No fan, no reaction at all.
Both fuses seem to be ok.
I already got arrangements with the seller to keep it and now I have another repair job.
This thread is started at the beginning of the repair and at this stage I have no idea what the problem is.
After opening the instrument I found the fan totally plugged up with dirt and lots of dirt blown in
to the power supply area. So first I will clean the inside completely and then start analyzing the problem.
Judging by the dirty PSU, I suspect the first problem there.
After I repair the unit, I want to upgrade the the option 10/12 for a stable frequency reference and
also upgrade to to the 3 GHz Prescaler on Channel 3.
At the end there will be a calibration and comparison to my HP GPSDO with my 53230A counter.
So, anyone here having experience with the 53132A and it's problems?
One thing that sticks out right away is a missing U24 chip.
Hmmm, may be it is required for the time base upgrade?
Interestingly, this one has the Channel 1 and Channel 2 inputs on the back as well.
I think this was an option, because I have seen other units without these connectors on the back.