All, I have two DECstation 5000/133s here with dead power supplies. I've done some basic troubleshooting on both, and I've recapped the other, but they're still dead dead dead.
I don't see any obviously blown components, and the fuses are fine, but several of the caps I replaced WERE leaky. I inspected for bad traces but found none. So far it looks like the high voltage side is totally fine, but the low voltage side is completely dead. No activity. Switching transistors SEEM fine, but I haven't pulled them to check them out of circuit. Is anyone intimately familiar with the H7826? Any obvious failure modes I should check? -Seth -- Seth Morabito li...@loomcom.com
