Another question: When some of these LC's start up, I get a high-pitched whine that rises in pitch and volume. Then it begins to drop in pitch and volume, fading away to nothing, only to go through the same cycle again in a few seconds.
I was working on one of them with the top off Friday trying to discern the location of the whine. Finally reached over and disconnected the speaker. Whine stopped. Was the whine in the hard drive being passed along and through the speaker, or was it totally speaker generated to begin with?
Jim,
A simple Mechanical sound/noise detection method ; using a long screwdriver, touch a device (hard drive, etc.) w/the blade end,
then put the handle end against your ear canal opening ... being VERY careful not to touch any electronics.
A straightened wire clothes hanger works, but make a loop at the listening end (so not to damage ear). Basicly a crude stethoscope.
Don't know that it will work w/ electrically generated sounds ...
Jerry
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