Hello,
Having limited success with a stern sopranos. kicker is not disengaging. Replaced transistor, tested coil diode, tested continuity from coil to board, tested optics. Has a brand new coil / diode in it.
re-tested everything several times. re-traced my steps with the troubleshooting and repair process. Can not figure this one out.
Just want to send the board to someone for testi9ng and repair at this point. Whos is the best? Thanks Steve