@Chris Lonero posted:I’ve never tried wiring in a mars unit but did you try the board on the other side?
I'm pretty sure I soldered everything to the right side. The instructions have a diagram which makes it clear which side to use.
@Quarter Gauger 48 posted:what are you using for power supply? Did you test the LED first'..? SOmething don't sound right........
The LED did work before I connected everything. The power source I'm using is a railking z1000. I have a small DC transformer that I might use to temporarily bypass the evans design circuit and test the ngineering board to see if I damaged it while soldering everything.
@Danr posted:The N8031 has a resistor built in so it will function at 7-19 volts (track voltage). Check the instructions for your mars light board to see what kind of lamp it is supposed to use.
That could be the issue. I'm pretty sure the evans design circuit also has a resistor, so the combination of the two could be keeping the LED from working. I'm going to test it with a DC power source.
