If your KA630 seems to work OK but the console bulkhead LED display is dark, the issue is probably only a burnt-out fuse. A result of a short circuit, probably somewhere on the bulkhead, that may have happened a long, long time ago.
Instead of de-soldering and pulling out the old fuse, thus risking mechanical upset to the delicate PCB traces, here is a less intrusive procedure which uses a small SMD fuse. Do not simply short the burnt-out fuse using a wire, fuses are always there for a reason. Continue reading “KA630 Console Bulkhead Dead LED Output Fuse Fix”