Replacement 5806223 card finished and being tested in the 1130

FINISHED ALL JUMPER WIRE TESTING OF THE STACKED PCB + DONOR SLT CARD

Making sure the card was properly connected required me to beep out each pin to the connection on the PCB. Once that was done, I checked for shorts to adjacent pins. No shorts there. The last set of tests were checks for pins that were connected to adjacent pads on the PCB where the jumpers are connected. That too was clean.

CARD INSERTED IN VCF 1130 AND SOME TESTS PERFORMED

When I first powered up, I heard a circuit breaker click off in the 1130 - the 6V supply. Because my card doesn't use the 1130 power rails of +6, +3 and -3, I ignored those pins. However, the donor card had a short between the +6 and the +3 pins (B11 and D03) most likely caused by the holes I drilled to fasten on my PCB.

The fix was easy - since the connections from the pins to the donor card are short traces, I just cut away the traces to isolate both of them from the card. The problem went away.

The level 3 interrupt was active and wasn't reset when I pushed the Reset button on the 1130. I pulled the card out and have begun checking on the bench. It is possible that the short that connected the +6 and +3 supplies also injected overvoltage into some of the chips on my card.