Trying to fix hotshot. It boots. Cycles. And lights work. Nothing lights up in backbox. No scoring. Sound is just static. No ball kicks out. I was told possible grounding problem. Game in beautiful shape. Just wished it would work

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I was told to strip these wires and have a wire connect all of them which shirt fix grounding. I haven't tried that yet. Need opinion before any stripping of wires.

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Thank you for the guide. Just to be clear, all the connectors in the back can be cut since they are grounds?

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The 1A's and 2A's? the solid white ones?

well, did as guide said, improved all the grounds. Doesnt look like it did anything. playfield lights up, nothing out of backbox. flippers work, but when I hit the audit button, everything died. sound is still buzzing and no displays whatsoever. reboot and it cycles, again playfield lights, side kickouts work, nothing on backbox works.