Hi I have purchased an un flown DC3 with 2 x Saito 100 four strokes twinsync and dl506 glow drivers.

The twinsync seems set up correctly but I have no information on the glow drivers .
Is there a manual?

I have twin sync set up so in mode 5 both red and both yellow led are on so the glows should run all the time the props are turning without the aux channel.

My glow driver boards both have a yellow led on but neither engine will start using the glow units but are fine on separate glow sticks?

I must be missing something as I have put the glow against the head and spun the motors and still have no glow. I have checked continuity from plug to engine and through twinsync and all look good.
I have even replaced the engine bolts to steel from coated ones in case it was a grounding issue?

Can you offer any advice..

Regards
Mick