Jabber Posted August 17, 2005 Report Share Posted August 17, 2005 Hi i am looking for a datasheet for a Switching Power Supply Regulator.It is a 8 pin IC on the top is a National Semicoductors symbol.The number of it is: M57ALAMS42577Hope you can help me.ThanksDennis Quote Link to comment Share on other sites More sharing options...
ante Posted August 21, 2005 Report Share Posted August 21, 2005 Hi Dennis,It’s not easy to find this regulator with what you give us to go on. Is it working or broken, can you from its position find out which pins are connected to what and so on? Maybe it’s possible to find a schematic for the “apparatus” where it is located? Pictures ?I like to help you if I can! ;D Quote Link to comment Share on other sites More sharing options...
Jabber Posted August 22, 2005 Author Report Share Posted August 22, 2005 Hi Ante,Sorry for the missing info, i was a little fustrated when i wrote this topic.The regulator is for a Amstrad SRX2001 Satelite receiver, I can't find a schematic for it.The Powersuply is sending a pulsing 0 to 60 V ot on a 24 V pin, i have tried to replace almost everything else but the regulator.So I see this as my last chance to succseed.Thanks for your interrest in my little problem. Quote Link to comment Share on other sites More sharing options...
ante Posted August 22, 2005 Report Share Posted August 22, 2005 Hi Dennis.The only Amstrad schematic I got is for the SRX-360, with some luck they might have similarities! I’ll keep my fingers crossed!Amstrad_SRX360.pdf Quote Link to comment Share on other sites More sharing options...
ante Posted August 22, 2005 Report Share Posted August 22, 2005 This is the IC600 on the schematic if I am correct: UC-3842.pdf Quote Link to comment Share on other sites More sharing options...
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