What to measure and what to think about when running secondary trigger VR on a 3.2 or 3.3
- is the correct solder jumper installed?
- SJX
- is the sectrig LM1815 pin7 adaptive threshold RC circuit soldered on fine ?
- add detailed info here
- What signal does the LM1815 output to the AVR on IC3?
- Should be a 0/5V square waveform