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Inside & repair of first generation of Fluke 87.


anadevi

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I hope you find this post interesting, while not a traditional power tool, it's every bit a tool. This is an 87 I purchased in March 1993.

These meters can sometimes be picked up used very cheaply on ebay. If you only have an occasional need consider one of these early 87's.

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The LCD has dim segments which make it very hard to read. This is a common problem with this first generation Fluke 87. They still have the parts available to fix this using an upgraded elastomer connectors.

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Remove the protective jacket.

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There are three screws that need to be removed.

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The back cover separates at the bottom and then unclips from the top. Don't force it appart.

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The front cover just falls away once the back cover is removed.

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There is a single screw holding the front and back shields in place. The pcb is in between them.

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The back shield has two clips at the top. Again do not force these apart. The clips are brittle.

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Now remove the top shield. There are four clips at the top. They will break very easily so be careful.

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Remove the old elastomer connectors. They are pink in this photo. The grey ones are the replacements.

The PCB board contacts need to be cleaned. I used a eraser (very careful and only on the contacts). I finished cleaning them using Isopropyl Alcohol.

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The grey elastomer connectors are now installed. Do not touch them, use tweezers.

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These are the tools I used, a couple of philips, tweezers, ESD mat and ESD wrist band.

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The 87 is back together and the LCD is clear and easy to read. The parts were <$5.

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