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Satellite TV receivers & systems support forums
Analogue systems
A thought on re-using old analogue boxes...
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<blockquote data-quote="garga pista" data-source="post: 1040102" data-attributes="member: 321281"><p>I've got some news about the project: If I'm feeding the singal to to the C217 next to the Nicky3 chip, the receiver thinks it comes from the tuner, so i can get a good picutre. </p><p>I'm trying to get another input, via the decoder selector switch U21 (4052). I'm feeding the signal into the U21 switch at pin 14, and into the chip at pin 10 goes 5V dervied (with the usage of 7805 ic) from the decoder scart pin 10 where the receiver sends 14 V (if external switch in the tuning menu is set to on). Above is a video how it works (or better saying not works). I think it's missing the sync signal, and you can see in the floating picture the vbi/teletext data. It needs more investigations, how to get it to work.</p><p>Video: [MEDIA=youtube]jrqPkSwvTm0[/MEDIA]</p></blockquote><p></p>
[QUOTE="garga pista, post: 1040102, member: 321281"] I've got some news about the project: If I'm feeding the singal to to the C217 next to the Nicky3 chip, the receiver thinks it comes from the tuner, so i can get a good picutre. I'm trying to get another input, via the decoder selector switch U21 (4052). I'm feeding the signal into the U21 switch at pin 14, and into the chip at pin 10 goes 5V dervied (with the usage of 7805 ic) from the decoder scart pin 10 where the receiver sends 14 V (if external switch in the tuning menu is set to on). Above is a video how it works (or better saying not works). I think it's missing the sync signal, and you can see in the floating picture the vbi/teletext data. It needs more investigations, how to get it to work. Video: [MEDIA=youtube]jrqPkSwvTm0[/MEDIA] [/QUOTE]
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A thought on re-using old analogue boxes...
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