Just replaced my logicon and am planning on fixing the old one and selling it, but I reused the fan amp in the swap over. I was wondering if anyone has managed to find a way to verify logicon functionality without the box? Alternatively, if anyone has the circuit diagram for the fan amp, I could use that in conjunction with the component list I found (S5 Logicon Amp Components - Capacitor / Cap, Transistor, IC / DIP - RX7Club.com - Mazda RX7 Forum) to recreate the circuit and test as normal.