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sbitx help


 

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Hello, I have a few questions. I received my sbitx kit and installed the screen and a PI 3b. Since I could not get a PI 4. Once installed the display ribbon on the PI end hits the pins of the lm380n chip on the digital board. I also noticed that there is inductor L5 mounted on the back side of the digital board. L5 touches the PI just behind the audio connector. When my sbitx was up and running randomly the receive audio would go crazy. The waterfall was all red. I removed the PI from the digital board and noticed dimples in the ribbon cable. I bent the cable to solve the problem but I did not know bending the blue part of the cable would brake the traces. New cable on order. Do I need to shield the cable from the audio chip legs? And L5 sits directly on top of the PI audi0 components, it looks to be touching the PI. Is there a reason that L5 is mounted on the back side of the board? Any suggestions you have would be greatly appreciated. Thank you in advance
73 KC7GRH

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