I did a playfield swap on EBD. Turned it on. Booted fine. Walked away for 10 minutes. Came back and smelled something burning, but no smoke and no obvious burned pieces.

Sound no longer works and GI fuse 20A blows as soon as I turn it on.

Am I looking at one problem or a host of problems? Its just weird that it was fine for 10 minutes or so.

Thanks all. I hope to get back to it tomorrow or Friday. Will report back when I find the issue. Cheers.

I am going to pull the playfield tomorrow and put it back on the rotisserie.

Also discovered one pop bumper isn't firing. Switch is making contact. Does not fire in test mode, but light on SDB board (alltek) lights.

Removed the plugs and the fuse did not blow. However, one terminal on J3 is all gooed up. Is that something that can be cleaned up, or is it in need of replacement?

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It looks like it is J1, the playfield harness. That makes sense, since I just finished doing a playfield swap.

I will take another detailed look at my wiring under the playfield and then methodically go through each wire, using photos I took and the schematic.

Thanks for the green slime cleaning tip. I will give that a try.

Problem solved ! The G.I. lamp for the star rollover in the upper left of the playfield, had gotten smashed where both sides of the socket were contacting each other. Kind of a tight spot to put a lamp, imo, since the cabinet rail rests right next to it.

Also, is the 40,000 green insert lamp supposed to blink, like the others? Mine does not. Even in test mode.

Thanks all for your help!

Thanks for checking. I'll have to investigate and see if it's a bulb issue or light board.