Hi All,
This solenoid expander board is not getting it's signal.
1) Ive replaced the SCR on the lamp board - didnt fix it
2) I replaced the lamp board with a working one - didnt fix it
3) Cables are ok between the lamp driver and expander board
4) 42v at the board
5) I replaced the solenoid expander board with a working one - didnt fix it (at this stage I was rather loud with my WTF!
Thoughts?
I'm struggling to trace where the lamp board gets its signal from to drive the IC U4 though to the SCR Q54 to the Expander???