Hello, I am very far from a pinball repair specialist and excuse my English as I am not a native speaker. I have recently acquired a TOM and was installing a LED set (from Pinball Heaven). When plugging the LED lamps into the 17-Lamp Board Assembly A-19983 green card everything looked fine (only one of the little plastic black connector was loose , but by putting it in place the associated lamp was working), but since re-screwed on the board, half of the lamps refuse to lit up. I tried to unplug/plug the alim of the card with no success. Is there a fuse somewhere I should check?
Also I don't seem to find the card as a spare part anywhere in the world, is this normal? ( I suspect that they don't fail often and/or there is an "easy" fix).