The upper right ramp flasher on my TAF does not work. I know the bulb, socket, wiring and connectors are good.
The only other thing I can think of is the transistor that drives it, Q42.
However, according to the book, this transistor also drives the telephone flasher, which is working.
So, my question is, can the transistor have partially failed so that it only drives one of the two flashers, instead of both of them or do transistors fail completely?
I'm completely out of ideas, so all help appreciated.