Have a 2 stop Montgomery miprom that won't come to life. Originally the elevator stopped working but had some I/Os lit up. We sent the motherboard/backplane in to World Electronics and they found a bad capacitor in the power supply and replaced all caps, regulators and logic. When we got everything put back together, no I/Os were lit up and the PSU has both leds on.
When the prom and cpu are pulled out of the rack the reset light on the PSU flashes but when either of these are plugged in, the brownout and reset light stay illuminated and won't reset. Also, the CPU led stays steady on when plugged in.
We don't have a extender/test board but when I put my meter leads on terminals 6-7 in the CPU slot, I have 5.21 VDC but between 6-8/8-9 I have 0 volts. I believe that 6-8 should be 14 VDC but I don't have enough experience with Miproms to know for sure.
Any suggestions are appreciated.
Thanks
