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Tech Head - The Technology Section
The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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<blockquote data-quote="Cager" data-source="post: 573867" data-attributes="member: 310727"><p>Once again Llew thanks for your efforts. With the aid of the circuit I established that the 21,30 and 5Volt supplies were OK but the 12V was down to 8.2 and the 8V down to 5.5. Since the feedback to the primary side was obviously working OK I changed the reservoir capacitors C24 and C18 on the two faulty supplies and all came good. I also changed the smoothing caps also. I think a session changing all the other Electrolytics might be a good idea. R17 had also changed to 1K5 and I changed this as well. All the other funnies have gone and the reciever is working as well as ever. It hasn't been swiched off for over eight years so it hasn't done badly!</p><p></p><p>Cheers and Happy Christmas Cager</p></blockquote><p></p>
[QUOTE="Cager, post: 573867, member: 310727"] Once again Llew thanks for your efforts. With the aid of the circuit I established that the 21,30 and 5Volt supplies were OK but the 12V was down to 8.2 and the 8V down to 5.5. Since the feedback to the primary side was obviously working OK I changed the reservoir capacitors C24 and C18 on the two faulty supplies and all came good. I also changed the smoothing caps also. I think a session changing all the other Electrolytics might be a good idea. R17 had also changed to 1K5 and I changed this as well. All the other funnies have gone and the reciever is working as well as ever. It hasn't been swiched off for over eight years so it hasn't done badly! Cheers and Happy Christmas Cager [/QUOTE]
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Miscellaneous Sections
Tech Head - The Technology Section
The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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