Sounds like only the hold (9v) voltage is firing.

Remember, DE (Deger) flipper design is one single coil of wire in the solenoid (not 2 parallel wound like B/W) and only 2 lugs. So there is no thin or thick wire, just 2 thick wires.

When the deger board senses a switch closure, the red LED flashes once, the coil gets a very short (few ms) pulse of 50v and then hold voltage at 9v.

If the EOS switch (Normally Closed) is open all the time, this can happen - you only get the 9v hold voltage.

The 50v transistor for that flipper might also be bad (always open) on the deger board.

RM

Yeah, LW3 is 1992 so no EOS switches (just like DESW or R&B).

RM

Give the cabinet flipper leaf switch buttons a good cleaning, but be careful not to use anything abrasive - they are low-voltage gold-flashed contacts. If you scrape the flashing off (or someone before you already has) they corrode rapidly and give a weak signal to the board.

I use a piece of rough paper (like a cheap business card) with some rubbing alcohol on the paper and pinch it between the contacts and run it through a few times.

RM