lothian

The amp within my venerable RPW10 thumper has failed after years of reliably juicing the driver. Repairing the thing is simply not gonna happen. Rather than summarily replace the thing with new, I'm curious about the prospects of: 1) powering it with an inexpensive automobile amp and 12v power supply setup, or; 2) converting it to a passive sub and driving it with an external amp. I'm beginning my research here within this forum. You... reading this... Do you have any experience with either idea? If so, please post a link to the instructions!

I'm t'shooting a non-working RPW10 PCB. I do not own a scope; just a DMM. I get no sound from the speaker, no hum nor the power-on thump. Power LED lights and the fuse tests OK. Fuse tests OK and does not blow when amp is powered on. Visually, the PCB is excellent: no smoked traces, lifted pads, blown caps a/o burned resistors. No odor of burnt electronics. I get ~26.3vDC across the voltage regulators. I get ~5.6vDC across the two large resistors (volume at min.). With board unplugged, I see normal cap drain-down: voltage drains to zero volts when measured across the voltage regulators. Thus the usual culprits all appear to be normal. What do I need to test next?