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17in crt monitor flickering and wining


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#1 dan786

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Posted 24 December 2014 - 05:54 AM

the wining started few years back and the flickering started past year but not just that it white screens brightens up then it dims out as well . is there a possible cause of that? it seems does the whining when it warmer .


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win 7 prem 64bit


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#2 mjd420nova

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Posted 24 December 2014 - 02:40 PM

This sounds like a classic flyback transformer with a loose core.  It was not uncommon for the CRT TVs to emit a high pitched whine at just the edge of hearing (15,750 cps) when the flyback transformers developed a loose ferrite core.  The longer the vibration persists, the more heat generated and the more loose things become.  Tooth picks, plastic wedges and even sealing wax will help but it's not a permanent fix.  This should only be attempted by a knowledgeable and experienced tech as the voltage involved is enough to kill the average person.  Use only one hand and DO NOT ground yourself.



#3 dan786

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Posted 24 December 2014 - 06:29 PM

oh?  idk of any one here that can fix that


gigabyte 990fxa ud7, amd fx 4100 quadcore , 8gb corsair ram, msi n570gtx pe/oc twin frozer III, pc power cooling950 silencer psu, wd 1tb hd
win 7 prem 64bit





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