Author Topic: Fluke 8840a VFD  (Read 2240 times)

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Offline mbear2kTopic starter

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Fluke 8840a VFD
« on: December 29, 2016, 01:56:59 am »
So I took a chance on a clean looking Fluke 8840a that had the AC-09 and the GPIB options.  Checked things over, powered it up and no display.  Did the power transformer re-flow and went through the manual with a meter and a scope.  All voltages and waveforms looked spot on.  I did notice my 4.8vac supply to the VFD was at 5v.  I read across the connector (J203, pins 1 & 2) going to the VFD board itself - wide open.

I then pulled the entire meter apart to get to the display and this is what I found...




The front panel looks clean and the unit does not look like it's been opened or worked on.




So - anyone have a display assembly they'd like to part with?
 


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