View Single Post
Old 18th Sep 2021, 4:43 pm   #4
ajgriff
Nonode
 
ajgriff's Avatar
 
Join Date: May 2004
Location: Halifax, West Yorkshire, UK.
Posts: 2,045
Default Re: Fluke 87 display fix

Quote:
Originally Posted by Leon Crampin View Post
As with most elastomers, especially when heat cycled near a boiler, the strip had clearly relaxed and consequently there was inadequate contact pressure to give a reliable connection to all conductors.

Increasing the strip preload effected a lasting fix.
Yes there needs to be adequate pressure applied to the zebra strips and the broken clip may have been part of the problem in the OP's case. I'm more used to the earlier 70 series Flukes where the LCD holder is screwed to the PCB thus maintaining pressure as long as the mask remains undamaged.

Alan
ajgriff is online now   Reply With Quote