Long story short - changed optos - had it working, put it back in, stopped working on WPT, there is a surface mounted 4148 diode, but the stern manual doesn't list MA or V on the schematic...
I imagine you can remove the SMT and just put anode and cathode of pin through in replacement, won't be pretty, but cheaper than a £80+ board.
Any ideas?
I imagine you can remove the SMT and just put anode and cathode of pin through in replacement, won't be pretty, but cheaper than a £80+ board.
Any ideas?