Hello, so after my crack passed all the voltage readings, it worked perfectly and I've been working on the wood finishes and today when I put the crack back into the finished wood, it worked fine for a little and started hearing really nasty static so I turned everything off immediately and checked the impedance and voltage again. The impedance check passed without any unusual readings, but now all of my voltage readings are showing negative numbers.
-Both LEDs are still lit when turned on
1. -75.3V
2. -172.9V
3.-0.4mV
4. -172.9V
5. -75.2V
6. -0.5mV
7. -103.7V
8. -0.6mV
9. -103.5V
10. -0.5mV
Are there specific terminals I should check?
Thank you again for your help!