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Analogue-sequencer

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Message

Re: Failing PLED & MIDI Sync Caps

2008-04-22 by Steve

--- In analogue-sequencer@yahoogroups.com, "Colin Fraser" <colin@...>
wrote:
> Is that a new part, or one that's been sitting for a while but
hasn't been
> used ?

Best I can tell it's a part that has been sitting for a while. This P3
is actually for an individual from these forums and it's been sitting
for a while before being build. I've got a second PLED at home to try,
but I'm thinking that the issue may be related simply to age and not
power-on time.

For what it's worth, I emailed these photos off to Crystalfontz this
morning asking if what is seen is indicative of a failing PLED. The
response I received indicated that yes, this sort of issue is what one
would expect to see.

Here's a PDF of the support ticket with Crystalfontz:
http://nuxx.net/pdf/ivan_p3_crystalfontz_pled_failure.pdf

I'll get a better image / screenshot of it uploaded later tonight once
I'm home.

I have a second one of Ivan's PLED modules at home and this evening
I'm going to replace the existing one (which was bolted into the case,
with the connector soldered to it) when I received the kit. I'm hoping
that one works better, but with the thoughts of failure simply being
related to age, I don't have much faith that it will.
 
> The value isn't critical, 330pF should be fine.

Thanks very much, that's reassuring. I'll just stick with those then.

-Steve

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