Monitoring Digital Levels with an LED

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Article #3568

#3568

From: Dylan McNamee
Date: Tue, 31 Oct 1989 05:50

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I would like to add a coulple of status lights to my CD player.  I have
located pins where the Track Lost and Drop Out Detector signals are.  
I would like to hook up an LED to these signals, but I don't want to 
add any noise to the circuitry.  (I was thinking of using a battery
to power the LED.)

Any ideas of how to do this?  I've always wanted to know how many times
my CD player was actually interpolating data...

Send me replies, if you wish, and I'll summarize the ideas, if there is
interest.

dylan
dylan@cs.washington.edu

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!uw-june!dylan

References: <JMX.89Oct23184746@kannel.lut.fi>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!uw-june!dylan
From: dylan@cs.washington.edu (Dylan McNamee)
Newsgroups: sci.electronics
Subject: Monitoring Digital Levels with an LED
Message-ID: <9640@june.cs.washington.edu>
Date: 31 Oct 89 05:50:27 GMT
References: <JMX.89Oct23184746@kannel.lut.fi>
Reply-To: dylan@june.cs.washington.edu.cs.washington.edu (Dylan McNamee)
Distribution: sci
Organization: University of Washington, Computer Science, Seattle
Lines: 15

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