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Monitor whistles and shuts down - Star Logic 17" LCD Monitor

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I would unplug it and inspect the power supply section for bad caps first before the problem gets worst.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.

Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Replacement board:

Posted on Jan 04, 2011


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Posted on Jan 02, 2017


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Your unit has a short somewhere causing the power supply to overload, slow down and produce the whistle sound. It is more than likely in the high voltage section. I have a tip at which should help you find it.

Thanks for using FixYa and for the great rating.


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