i just checked all the connectors unplugged them all and checked the pins and replugged them in and still none of the lights under the playfield work
Ruh roh raggy.
I'd start with the basics, with the machine on wiggle the molex connector and see if the GI comes on. Those boards are infamous for getting fried connectors and/or bad solder joints on the male header.
Ensure continuity from driver board molex connector to first lamp in chain.
I suppose the next thing I'd look at doing is testing the associated transistor. From pinrepair.com:
Transistor Testing procedures using a DMM.
If the driver board is out of the game for some reason (like to fix the burnt GI connector pins), test all the transistors. It only takes a moment, and will ultimately save time. To test a transistor, a digital multi-meter (DMM) is needed, set to the "diode" position. NOTE: testing transistors with a DMM is not 100% fool-proof. A transistor can test as "good" and still be bad (rare, but it does happen!). Generally if a transistor tests as "bad", then it's bad. But if it tests as "good", that does not necessarily mean 100% it is good.
If you're testing transistors in the board, with the board installed in the game, leave all the connectors in place and do the tests below. If a transistor tests as "bad", *then* remove the associated connectors from the bottom edge of the driver board, and re-test. If the transistor now tests as "good", chances are excellent the associated coil is shorted. But you knew this already right? (because you did a coil resistance check already.) Another quick note in this regard for flashlamps - if one flasher TIP102 is bad, all the flasher transistors generally test as "bad". Removing the connectors across the bottom of the driver board will resolve this test issue.
Testing Transistors INSTALLED in the WPC driver board.
TIP36c: Put the red lead of the DMM on the metal tab of the transistor. Put the black lead of the DMM on each of the two outside legs of the transistor one at a time. A reading of .4 to .6 volts should be seen. Put the black lead on the center transistor leg (collector) and the red lead on the metal tab, and a zero reading should be seen. Put the black lead of the DMM on the left/top (base) leg of the transistor. The red lead on the center transistor leg should show .4 to .6 volts. The red lead on the right/bottom leg should be .2 volts. Any other value, and the transistor is bad and will need to be replaced.
TIP102: Put the black lead of the DMM on the metal tab of the transistor. Put the red lead of the DMM on each of the two outside legs of the transistor one at a time. A reading of .4 to .6 volts should be seen. Put the red lead on the center transistor leg (collector), and a zero reading should be seen. Any other value, and the transistor is bad and will need to be replaced.
TIP107: Put the red lead of the DMM on the center leg or on the metal tab of the transistor. Put the black lead of the DMM on each of the two outside legs of the transistor one at a time. A reading of .4 to .6 volts should be seen. Put the black lead on the center transistor leg (collector) and the red lead on the metal tab, and a zero reading should be seen. Any other value, and the transistor is bad and will need to be replaced.
2N5401, MPSD52, 2N4403 (pre-drivers): Put the black lead of the DMM on the center leg of the transistor (note this transistor doesn't have a metal tab). Put the red lead of the DMM on each of the two outside legs of the transistor one at a time. A reading of .4 to .6 volts should be seen. Any other value, and the transistor is bad and will need to be replaced.
Testing Transistors NOT INSTALLED.
Only the TIP36c will test slightly different out of circuit. The other transistors will test the same as described above. All transistors are laying on the workbench with their "face" (side with the markings) up, and metal tab away from you. Orientation is BCE (base collector emitter), from left to right for the TIP transistors. Orientation for the small plastic transistors is EBC (emitter base collector) with the flat side up.
TIP36c: Put the black lead of the DMM on the left (base) leg of the transistor. Put the red lead of the DMM on each of the two other legs (center and right legs) of the transistor. A reading of .4 to .6 volts should be seen. Put the DMM leads on the metal tab and the center transistor leg (collector), and a zero reading should be seen. Any other value, and the transistor is bad.
Most often transistors short when they go bad. This will usually give a reading of zero or near zero, instead of .4 or .6 volts.