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Amstrad drx550 sky box

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harvey:
No output from power supply. All output caps ESR reads ok. Primary section of the PSU board seems ok. The only faulty component found was 33uF 400v capacitor which was dried up and replaced. Still no output at all. Your help appreciated. Regards

mend it:
 The switch mode IC UI marked DM0365R can cause problems in these set but are had to source try eBay

harvey:
Thanks for the reply. I will try to find the IC.

Davy:
Have a look here at this pdf data sheet  0365RN.pdf]http://www.promelec.ru/pdf/FSD[M]0365RN.pdf and the Ebay link https://www.ebay.co.uk/p/dm0365r-fsdm0365rn-switching-power-supply-dip8-ic/702125180?_trksid=p2047675.l2644

Dave

harvey:
Hi, Thanks chaps for your help. Problem sorted. It was the IC DM0365R in the primary stage which was faulty. Your advice much appreciated. Regards

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