I have a TKM-MX170B with a Sigtronics Intercom SPA400 TSO. I wanted to move them to a more convenient spot. I must of gotten the wiring messed up. Does anyone have a schematic for these two and how there hooked together with headphones.
When I need wiring and cannot find it on the web, Call your avionics shop and ash them for the pinouts. They have a little yellow book with many. many different radios in it.
OK got it but I have noticed a lot of hissing in the background. Doesn’t seem to affect communication but very annoying. Is this a sign that my radio is going or something simple. I talked to TKM but they no longer support this 170B. Does anyone know of a place that I could talk to that could help?
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