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mole42uk · 15th Jul 2018, 2:38 pm

I also found this RIFA capacitor which had clearly given of it's best.....

There was an o/c 100R resistor in the supply to the 3524A SMPS chip, a replacement quickly fried..... I tried putting a 12V supply on to the chip which only drew about 10mA so I have left it on the bench while I think about the next move.

15th Jul 2018, 2:38 pm	#3
mole42uk Nonode Join Date: Aug 2010 Location: Resolven, Wales; and Bristol, England Posts: 2,608	Re: Gould 4072 bad PSU I also found this RIFA capacitor which had clearly given of it's best..... There was an o/c 100R resistor in the supply to the 3524A SMPS chip, a replacement quickly fried..... I tried putting a 12V supply on to the chip which only drew about 10mA so I have left it on the bench while I think about the next move. Attached Thumbnails __________________ Richard Index: recursive loop: see recursive loop