Whine from KDS Computer monitor

Nov 25, 2005 2 Replies
M

I have an older 17" KDS computer monitor. It is a soft start switch model and is continually energized even when off. Lately a couple of things have developed.



  1. It emits a contnuous very high pitched whine even when "off" Is this the flyback going?
  2. When running it emits a whooshing sounds as if something is gurgling in there. None of the caps appear to be overheating. Any idea what this noise is??
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D

Almost certainly not. Change all the electrolytics in the power supply section.

See above.

Dave

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S

The whining is likely the pulse width modulated power supply transformer, ringing, may just need to be hot glued, but can also be a load on it, making it work harder than normal. Sky

the

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