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The bigger is a capactor but I think the other is another coil but not sure. Just got to that part on the diagram last Sunday. Not sure if its on a daughter board along with the large electrolitic cap. It looked strange and my eye were screaming out of my head from tracing circuity so stop just before that section.
I think this part of the board is the inverter for powering the receivers & decode chip. Just a guess for right now.
It may be a custom part. Is it intact? IE does it have the two leads sticking out of the bottom? Some time this weekend but not sure when will be finishing the resistor forest on the "bottom" side and getting into the PS side. At this small scale it a real eye strain to trace and figure thing out.
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