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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: 573621" data-attributes="member: 310727"><p>Hi Llew. Your circuits and parts list dowloaded with thanks. I can now check if the PSU is causing the problems with my AD3000IP It seems to have a very high threshold for acknoledging that a transponder exists but if I warm the board with a hair dryer I can get channels which it previously couldn't see. I thought I had isolated this to CE921 near the connectors as I could turn some channels on/off by warming and cooling it. Unfortunately replacing this 100uF capacitor with a new one did not cure the problem. For the moment I have strapped it to the nearby PSU heatsink which improves the situation but is still not a total cure. Also the analogue channels are missing until I warm up another area of the board. Have you heard of any similar occurances and do you know of any sources of circuits for the main board?</p></blockquote><p></p>
[QUOTE="Cager, post: 573621, member: 310727"] Hi Llew. Your circuits and parts list dowloaded with thanks. I can now check if the PSU is causing the problems with my AD3000IP It seems to have a very high threshold for acknoledging that a transponder exists but if I warm the board with a hair dryer I can get channels which it previously couldn't see. I thought I had isolated this to CE921 near the connectors as I could turn some channels on/off by warming and cooling it. Unfortunately replacing this 100uF capacitor with a new one did not cure the problem. For the moment I have strapped it to the nearby PSU heatsink which improves the situation but is still not a total cure. Also the analogue channels are missing until I warm up another area of the board. Have you heard of any similar occurances and do you know of any sources of circuits for the main board? [/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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