After starting Fathom, there are seven MPU blinks but then this happens:
1. Two, and only two, lamps blink: "In sequence" and "Extra Ball when flashing"
2. The solenoid at the Cave Trap eject hole is activated a couple of times.
3. The game won't reach attract mode and a game can't be started (the two lamps described above continue to blink, but the other lamps remain off).
4. The displays are off, except for "Credits".
I have done diagnostics and then everything seems to work (lamps, solenoids, displays,...). There seems to be a problem with switch 42 but that shouldn't stop the game from starting.
I should mention that the sound isn't working (waiting for parts) but that shouldn't keep the game fram starting.
I would really appreciate advice!