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Old 11-09-2015, 12:26 PM   #2
Great Sage 齊天大聖
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Join Date: Dec 2009
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Default Re: Cisco pix 506 fw psu

ticking is either a shorted output, or a bad startup capacitor.

change the small cap c4 next to the control chip

and check the diodes on the other side of the transformer

Last edited by stj; 11-09-2015 at 12:27 PM..
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