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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
lost all horizontal channels
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<blockquote data-quote="Terryl" data-source="post: 905494" data-attributes="member: 369937"><p>Your LNB may require +18 volts DC to switch to the H polarity transponders, the receiver may not be putting out enough DC voltage to switch, or your coax has a problem with a resistive short, water in the coax or connector can cause this.</p><p></p><p>A DVM* would be needed to check the output of the receiver, checking at the LNB,(with the coax disconnected, power the receiver off first) the center conductor to the outside of the connector should show +18 volts DC (plus or minus a volt) when a H polarity transponder is selected.</p><p></p><p>If your receivers power supply has a problem your motor may also not be able to move.</p><p></p><p></p><p>*DVM, Digital Volt Meter.</p></blockquote><p></p>
[QUOTE="Terryl, post: 905494, member: 369937"] Your LNB may require +18 volts DC to switch to the H polarity transponders, the receiver may not be putting out enough DC voltage to switch, or your coax has a problem with a resistive short, water in the coax or connector can cause this. A DVM* would be needed to check the output of the receiver, checking at the LNB,(with the coax disconnected, power the receiver off first) the center conductor to the outside of the connector should show +18 volts DC (plus or minus a volt) when a H polarity transponder is selected. If your receivers power supply has a problem your motor may also not be able to move. *DVM, Digital Volt Meter. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
lost all horizontal channels
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