Electronics > Repair

Another Fluke87 problem

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planenut2000:
Sorry im new here and if my problem has been discussed before i apologize.
My fluke 87  shows a -34Kohms on the ohm scale with no leads. it also shows -4 volts on the dc volt scale, again with no leads.
All other positions look normal. I had it sent into a repair facility ( not Fluke Co.) They weren't able to find anything wrong with, but installed a new lead jacks.
Any ideas on where to look?

retiredcaps:
Take it apart and post clear focused pictures of both sides of the pcb.

If you're lucky, it could be a simple IPA bath cleaning or it could be your input protection components are bad.

Do you have another working meter to make measurements of the input protection components?

planenut2000:
Thanks for the replay, i do have another meter a fluke 88, buts its at work at this time. it will be a few  days until i can get it.

planenut2000:
Here are the pictures

planenut2000:
2nd pic

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