I am installing a new control board into my PL400. I misinterpreted the wiring diagram on the 1st run and my DBT light dimmed a little after the caps charged, but stayed bright. I *think* my miswiring was pretty benign; there certainly was no smoke, but the unfused b+ and the ground were hooked up to terminal points with no connections on the circuit board.
I am confident that I have things hooked up correctly now, but I am still getting the light to dim only a bit, and the front lights do not turn on. However, if I remove the fuse from either channel, things seem to settle into what I would expect. That is, the light dims appropriately, and the face-plate lights up.
I have already installed new filter capacitors, the new light board, and the protection circuit.
Any ideas what I might have nuked, and/or where I should look for errors?
Thanks!
I am confident that I have things hooked up correctly now, but I am still getting the light to dim only a bit, and the front lights do not turn on. However, if I remove the fuse from either channel, things seem to settle into what I would expect. That is, the light dims appropriately, and the face-plate lights up.
I have already installed new filter capacitors, the new light board, and the protection circuit.
Any ideas what I might have nuked, and/or where I should look for errors?
Thanks!