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Old 09-06-2008, 10:05 AM   #1
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Rca / Phono Leads Shared Ground Ok?


RCA/PHONO leads with a number of video & sound outputs (Eg. Vid1, Snd1 L/H, Snd1 R/H, Vid2, Vid3 and one ground) is it ok to use 'A' shared ground for all outputs?

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Old 09-06-2008, 11:22 AM   #2
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Rca / Phono Leads Shared Ground Ok?


No, due to if talking A/V, it will not only not work, but will introduce noise into the sound & audio circuits.

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Old 09-06-2008, 12:15 PM   #3
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Rca / Phono Leads Shared Ground Ok?


OK, would 'A' shared ground with RCA/PHONO leads be OK on just VIDEO outputs?
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Old 09-06-2008, 06:08 PM   #4
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Rca / Phono Leads Shared Ground Ok?


Keep the gnds separated, in a/v systems a common ground creates interference, and possibly worse problems.

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Old 09-06-2008, 07:24 PM   #5
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Rca / Phono Leads Shared Ground Ok?


Again no, due to the system is not designed that way. Common grounding leads to noise induced problems, among other things. Also keep in mind, that with each channel, the Ground acts as the return path for that channel, so why create a common Negative path?
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