Bill,
I have the twinsync system installed in a TF Cessna 310 with two OS 55 AX engines. I have the aux channel programmed for mode 3, I have confirmed the bit mapping of the LEDs to ensure it's mode 3. When I wiggle one of the props the little green sensor led flickers and the two red LEDs illuminate for 10 seconds (just as the manual says they should). The problem is that the glow drivers are not working. The yellow LED on the glow driver is not illuminating and I confirmed with a volt meter that there is no power getting to the plug. I have double - triple checked my connections and everything is per the manual. Is it possible to have two dead glow drivers or am I missing something? Also, I confirmed that I was getting 1.25 volts from my glow battery to the glow driver, I checked this with a voltmeter on the glow driver board.

Any help you can provide is greatly appreciated.

Regards,

Tom