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Tech Head - The Technology Section
The Work Bench and Soldering Station
Power Supply capacitors??
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<blockquote data-quote="spiney" data-source="post: 114343" data-attributes="member: 192438"><p>A very good point, Channel Hopper (hello again!).</p><p></p><p>I assume the receiver otherwise "appears" to work normally, eg, it responds to software commands, etc. In which case, the main power supply is ok, and it must be lnb control volts only (since that's been measured).</p><p></p><p>Many problems are due to a failing power supply, fair enough. But, from these symptoms, it must be the lnb volts control circuitry. I don't see how it could be anything else. This is a known sat receiver problem, usually (but not necessarily!) caused by short-circuiting the lnb socket, which just blows the transistor (some receivers have a protection fuse, apparently GBSat doesn't!).</p><p></p><p>As to why the distributors said "power supply capacitors", I've no idea.</p></blockquote><p></p>
[QUOTE="spiney, post: 114343, member: 192438"] A very good point, Channel Hopper (hello again!). I assume the receiver otherwise "appears" to work normally, eg, it responds to software commands, etc. In which case, the main power supply is ok, and it must be lnb control volts only (since that's been measured). Many problems are due to a failing power supply, fair enough. But, from these symptoms, it must be the lnb volts control circuitry. I don't see how it could be anything else. This is a known sat receiver problem, usually (but not necessarily!) caused by short-circuiting the lnb socket, which just blows the transistor (some receivers have a protection fuse, apparently GBSat doesn't!). As to why the distributors said "power supply capacitors", I've no idea. [/QUOTE]
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Power Supply capacitors??
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