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HNG64 video interference

Kreuz

Student
Joined
Sep 25, 2016
Messages
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Location
North AL, USA
I am seeing noise on the video output of my Rev1 HNG64, and the source is very obviously the audio. The noise matches up with the beat of the audio, and adjusting the volume pot increases and decreases the noise as one might expect. Setting the pot very low minimizes the issue, and unplugging the audio obviously eliminates it entirely. Other than that, the board works perfectly.

I am not 100% sure the speaker harness is wired correctly, since the manual contradicts itself, but the audio seems to work ok. So I don't know. Has anyone run into this before?
 
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