Congrats! Great score, and great game!

Obviously the backbox GI is out, and the left side of the playfield - both easy fixes and common on this game. T2 was my first DMD game also, and my backbox GI was also out. First molex repair I ever learned. Check fuses first, then check the connectors in the lower left corner of the driver board.

Looks like the tail of the HK ship above the standup targets is broken off, those are available though. Can upgrade to a lighted up model -

Does the flipper go down when you shut the game off? Any credit dots on the display once the game boots up?

Did you get the manual? If not, print one off here - https://www.ipdb.org/files/2524/Williams_1991_Terminator_2_Judgment_Day_Manual.pdf

Let's get this thing working 100%!

Ok, good! At least we know the problem now, and easy to fix -

How do those other connectors look? I think that's the backbox one that's cooked - how is J121? Should be your playfield lights - give that a push -

Capture (resized).PNG

The actual pins on those boards should be replaced too, they've had so much heat put on them they're breaking down, same as the connectors. The general illumination circuits werent designed well on this game. Putting led's in will greatly reduce the stress on the system, as will #47 bulbs instead of #44s, but once you replace those connectors and pins you should never have a problem again in a home setting. Be careful removing the connectors, looks like that top pin got bent a bit.

Fixing that backbox connector may get the bottom part working again - if not, swing the backbox open and check the connector going up to those lights -

You're doing great! It's exciting when things start working, isn't it? lol

Replacing those pins isnt something I suggest you try right away, unless you have experience working on circuit boards - they do need to be replaced though. Lotsa pin collectors in your area, may be able to get some help locally - the connectors you can handle though -