I do not have any signal cables I have 2 rca on one end 2 rca on the other end cable. Would a rca cable work with red and yellow on each end if I red on one set of connectors and yellow on the other set of connectors??First thing I noticed in your pics is that the jumpers are missing on the pre out/amp in loops.. Try bridging those with a couple short rca cables and see if that "fixes" it ...
No sound with the rca cables used a jumpers through headphones
If it’s stuck in protect, it’s either the power supply or one of the amps. Unplug both amps and see if it comes out of protect. If not, the power supply has the issue. Otherwise plug in one amp and see if it comes out of protection. You can pin down what has the issue fairly easily and can fix it yourself or find someone local to do it.
Hey. Just curious, what area of Houston you located in?I do not have the equipment to check it or make the repairs.