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Posted by Bob F on May 17, 2008, 10:16 pm
> On 5/17/2008 5:24 PM larry spake thus:
>
>> David Nebenzahl wrote:
> >
>>> On 5/17/2008 6:23 AM willisl@iupui.edu spake thus:
>>>
>>>> The liquid crystal displays on both of our landline phones have gone
>>>> illegible. Is there a way to restore them?
>>>
>>> I have the same problem with my El Cheapo digital voltmeter; part of the
>>> last digit got creamed when water got sprayed on the unit, and now doesn't
>>> display. All else works fine (I can usually just ignore that last digit
>>> anyhow). Any fix for this?
>>
>> probably corrosion or the zebra strip lost connection between the pc board
>> and glass lcd. zebra strip is a rubber strip with many thin conductive
>> layers.
>>
>> you might try a little pressure at the edge of the display first to see if
>> the zebra strip might slide a little and make contact again. there is a very
>> real possibility you might never get the zebra strip back in place if you try
>> the following. does take some practice.
>
> [snip procedure]
>
> Yes, I know about those connectors, having taken a lot of LCD devices apart
> (but didn't know what they were called). And thanks for the suggestion. I
> think I'll just leave it alone; the chances are that it wouldn't work at all
> if I tried to rebuild it. I'm pretty sure that is where the problem is as you
> suggest.
>
But you can learn something by trying.
> I see that my surplus catalog (Electronix.com) sells those same DVMs for
> $7.95. Not worth tinkering with.
Even more so.
I hate to see how much easily repairable electronics is discarded because
something simple to fix failed.
But then again, I recently got a freeby iPod from a craigslist posting. Ten
minutes of googling, and I found how to recover from the error.
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