Author Topic: Need help repair FLUKE 867B  (Read 2465 times)

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Offline Vedran

  • Newbie
  • Posts: 2
  • Country: ba
Need help repair FLUKE 867B
« on: September 30, 2016, 10:18:16 am »
Hi there,

I'm new member to your community and I'm glad that I've found you guys.

I have FLUKE 867B and half of it's features doesn't work. When I select LOGIC, Component test, SET UP, ~V, V I get nothing on display (Image attached).

When I select mV, Ohm, diode, mA or A everything works fine. Display is showing everything and I can do measurements (Image attached).

I have found Manual on this link:
http://monitor.espec.ws/files/service_206.pdf

I have disassemble it two times until now and I tried to clean contacts and check one relay but it all works fine. Can you please tell me is there anything I can do or what component to check inside? Thank you very much for any help.

 

Offline Jacek_Paw

  • Contributor
  • Posts: 29
  • Country: pl
Re: Need help repair FLUKE 867B
« Reply #1 on: September 30, 2016, 12:07:24 pm »
On one side of the board under the knob slider you can find black coated (probably with carbon) pads. Basing on the slider position over the pads the meter determines the selected function if there is a problem with contact none function is selected.

Try to clean the pads with IPA or maybe even try  to scrub (gently and carefully) them a bit with thin sandpaper.

In my unit the described method solved identical problem.
 

Offline Vedran

  • Newbie
  • Posts: 2
  • Country: ba
Re: Need help repair FLUKE 867B
« Reply #2 on: September 30, 2016, 12:54:47 pm »
Thank you Jacek for your replay   :clap:. It works now for AC and DC like a charm!!! SET UP and COMPONENT TEST doesn't work but I don't care!

I did this cleaning for three times and it didn't work. Now I've disassemble contact all together from PCB. Scrub little harder with sandpaper and small screwdriver (only for metal parts) and even found hidden metal contact plate under plastic ring (Image attached).

Thank you very much for your time!

 

Offline retiredcaps

  • Super Contributor
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  • Posts: 3449
  • Country: ca
Re: Need help repair FLUKE 867B
« Reply #3 on: September 30, 2016, 07:00:18 pm »
 


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