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Tech Head - The Technology Section
The Work Bench and Soldering Station
setting up my system aagain
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<blockquote data-quote="spiney" data-source="post: 176272" data-attributes="member: 192438"><p>Check the multimeter is working on a torch battery, or similar, on 20v range. You should get a reading.</p><p></p><p>Then, testing sat receiver with the tiny bit of cable going into lnb socket, you must have a channel selected, even though there's no lnb connected! Check the receiver is expecting a signal, ie says "no signal", or whatever yours does!</p><p></p><p>(make sure your temp tiny cable isn't itself shorting the lnb output! With power off, test the resistance between conductors. A low or zero reading means you've got a short, probably a wire whisker between the conductors).</p><p></p><p>Also check the inner conductor is going right into the lnb socket, make sure it pokes about half an inch out of the f plug. </p><p></p><p>If there's still nothing out of lnb socket, then it seems likely the receiver is faulty, possibly the result of shorting the lnb socket when you were originally setting up. Probably still repairable, but needs fault finding skills.</p><p></p><p>If so, then sorry, you've spent a bit extra, but at least know what's happening!</p><p></p><p>(PS, what make of receiver? About how old?).</p><p></p><p>(PPS, if feeling brave, you could remove top cover from sat receiver, and check volts are actually going into the lnb f socket. It's unlikely the socket itself has failed, they're robust, but possible; it would be a shame to throw away the receiver just for that! However, be careful not to touch anthing around the switch mode power supply, if it's exposed, as there's 400v dc around there, highly dangerous!).</p></blockquote><p></p>
[QUOTE="spiney, post: 176272, member: 192438"] Check the multimeter is working on a torch battery, or similar, on 20v range. You should get a reading. Then, testing sat receiver with the tiny bit of cable going into lnb socket, you must have a channel selected, even though there's no lnb connected! Check the receiver is expecting a signal, ie says "no signal", or whatever yours does! (make sure your temp tiny cable isn't itself shorting the lnb output! With power off, test the resistance between conductors. A low or zero reading means you've got a short, probably a wire whisker between the conductors). Also check the inner conductor is going right into the lnb socket, make sure it pokes about half an inch out of the f plug. If there's still nothing out of lnb socket, then it seems likely the receiver is faulty, possibly the result of shorting the lnb socket when you were originally setting up. Probably still repairable, but needs fault finding skills. If so, then sorry, you've spent a bit extra, but at least know what's happening! (PS, what make of receiver? About how old?). (PPS, if feeling brave, you could remove top cover from sat receiver, and check volts are actually going into the lnb f socket. It's unlikely the socket itself has failed, they're robust, but possible; it would be a shame to throw away the receiver just for that! However, be careful not to touch anthing around the switch mode power supply, if it's exposed, as there's 400v dc around there, highly dangerous!). [/QUOTE]
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Tech Head - The Technology Section
The Work Bench and Soldering Station
setting up my system aagain
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