Having a couple problems getting my Mars running. One is with the new Wumpf CPU I bought and one is with the lamps on the PF.
I bought a new Ni-Wumpf CPU off Pinside, set it up to work with Mars, but when it tries to start a game it says "Tilt, tilt, tilt", the PF goes dark and it says "Bad one" on the display. I emailed Ni-Wumpf about this, they told me that "Bad one" means something is wrong in association with the slam switch. In switch test, the CPU tells me to clean switch 77 but according to the manual there is no switch 77. Haven't heard anything back from them about this. FB video link of how the game is behaving: https://www.facebook.com/groups/pinballrepair/permalink/4110867172268792/?sfnsn=mo
My other issue is with the lights on the PF. I was initially having problems with lamps being stuck on or not lighting. I've checked all transistors and chips on the original driver board with my multimeter. I then implemented the thunk cure via this method (https://www.flippers.com/gott-system80.html#thunk), but botched it. I ended up cutting away the legs you were only supposed to lift. I was able to (I think) rectify it by soldering cap legs in place of the chip legs. After this implementation of the thunk cure the problems with lighting got worse, so I got rid of it. Now F2 blows semi-regularly and I'm not sure what's causing it. Back to having some lights stuck on, which seem to be random and not associated with just one particular chip.
I've changed the filter cap, did ground mods, replaced BRs, rebuilt/repinned the power supply, repinned the interconnect harness, and repinned a couple connectors on the MPU (I can't remember which)
As always, any help appreciated.