pinball at telus.net
Mon Sep 20 21:00:55 CDT 2010
Tony Duell wrote:
> As all of us who do hardware repairs know, a multimeter is an essential
> piece of test equipment.
> Until a couple of days ago, I used a Fluke 85 (original series). It did
> what I wanted, there were 2 parts of the design I didn't like, but apart
> from that it was great
> Anyway, I was using this iustrument on Saturday (actualy for testing the
> PSU, etc, in an HP2623 graphics terminal) with no problems. I put it away
> in my tool drawer. On Sunday I got it out for some other tests and
> discovered the display had failed. It's totally black for half the
> height, I asusem the liquid crystal material has leaked out (although the
> glass is not obviously cracked or broken). AFAIK nothing fell on it in
> the tool drawer (there are no really heavy tools in there anyway), it
> wasn't dropped, etc. Just one of those things.
This may simply be a case of reseating the LCD screen. It is a
compression fit against the PCB with a conduction riser, try reversing
the riser and power it up again. I've kept a few meters going past
apparent best-before-dates doing this.
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