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Mick wrote: |
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> PS. Noisy PSUs are nothing new. The noise is can be caused by the |
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> capacitors, or the coils. Although annoying it does not necessarily |
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> mean that there is an electrical problem with the components. If the |
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> fan is rattling, then a drop of oil on its bearing should soon put a |
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> stop to this. As Dale mentioned, a stalled fan will not help the |
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> longevity of the remaining components. :-) |
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This is true, they do sometimes make noise. What got my attention is |
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that it stopped. Usually if one makes noise, it will make it for the |
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remainder of its life cycle unless something changes, such has adding |
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additional load which may change a frequency. If nothing changes and it |
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stops making that noise, then it likely stopped working as well. I've |
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seen capacitors go bad and it not blow anything else out or stop the |
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rest of the circuit from working. It all depends on how it is used in |
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the circuit. Most likely in a case like this, if the capacitor just |
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went open circuit, the rest of the circuit will continue to work but the |
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capacitor is no longer doing its job of filtering out the noise and |
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ripple. |
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|
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Still, the mention that it stopped is what got my attention. That |
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doesn't sound good, pardon the pun. ;-) |
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|
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Dale |
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|
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:-) :-) |