Electronics > Repair
Please help, FLUKE 8920A Multimeter Repair
Harry_22:
Dear Daisizhou, if you don't work hard I won’t be able to help you.
daisizhou:
I replaced it with a 50 ohm load,Found that things are developing in a good direction.(https://www.eevblog.com/forum/projects/i-made-a-50-ohm-load-with-bnc-connector-is-this-correct/)
I'm still continuing to test,it takes time,give me some time,I need to confirm if the problem is finally resolved.
Thanks.
Harry_22:
Why do you force 50 Ohm termination issue? You don't need it for major measurements.
daisizhou:
Replacing the 50 ohm resistor was a suggestion from a friend,He said it was the easiest thing to try.
I followed your suggestion and shot C16C18---C45C48 And TP3 test video.TP3 waveform looks the same as before,Not a sine wave.(You can compare with my previous video records).fluke 8920a is still the same as before。
Set 2mV manual range on RMS--After 8920a is turned on, "700" keeps flashing.Unable to manually select 2mv range
Measuring and shooting are all done by myself. There may be wrong connections. If you find any, please tell me.
If you have further testing please let me know and I will follow up on it
Thanks
Harry_22:
Please measure the same on TP1
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