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Оригинальный сообщение: Spikey2 ,

Текст:

MOV - a varistor to protect the other components.

when you say failed - does it present a 'short'?

If it is really the only faulty component (could be dameged by a voltage spike, like lightning strike) just removing it should allow the PSU to work again. good for testing

see also here: http://www2.electronicproducts.com/Circuit_protection_for_power_supplies-article-littelfuse-aug2006-html.aspx

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