Bally pinball driver board question

br549autosales

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Donor 2012-2013
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I got a Six Million Dollar Man pinball machine that has a jumper wire on test point 1 and test point 3 on the solonoid driver board and everything seems to be working correctly except for @ 3 bulbs under the playfield that will not light up. If I remove the jumper from the driver board, none of my solonoids will work. Is there a way to remove this jumper and repair what is needed? With that jumper where it is, what is it bypassing?
 
TP1 & TP3 both carry +5v on the driver board. There are some weak traces in the board itself and a lot of people tie the two test point together to bypass the traces in question. The jumper is the repair the board needed to operate. Replace the jumper between the test points and look to the lamp board for the issue with the playfield lights. The non-functioning lights, are they general illumination (GI) or feature lamps?
 
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I only have one light that I can't get to work, the "5" of the 50,000 in the middle of the playfield, other than that, everything else on the machine works fine, I do have some feedback noise coming from the sound when the game is in idle state and flipping between the high score to date and the last score made. Can I just leave the jumper where it is without any possible damage in the future to the machine?
 
Leave the jumper in place and forget it! Chances are the lamp base is bad. Check for voltage at the tabs where the wires solder on the base. Take a DMM (Digital Multi-Meter) and check the voltages. Have you cleaned the lamp socket?
 
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