Hello,
New problem, I just resolved drop target issue. Works great, realized I left flashlight inside. Opened playfield, retrieved light, closed up, now I have new issue.
When machine first starts new error message. “Ground Short- Rows 2-7” . Any idea what I may have touched to cause this error?
Thanks
To

Ok, I’ll take the hit if I caused it, but game was working after all closed up. Stopped working after I reopened playfield to retrieve light. Now I’m gun shy, when you say unplug row 2-7 connectors from cpu, do you mean disconnect jumper 209? Sorry to be a pain, but I do appreciate the help.

Unfortunately that didn’t help.

Thank you for the input. Assume that I am an amateur (yes I am the first part of the leading word), how do you know whether it’s chip U18 or U19? Is it as easy as it seems to pull the existing chip and replace it with new one, given the old isn’t corroded in place? I’m going to order its replacement now.
Thanks again for the help.
Tom

Thank you for heads up, I didn’t look close enough to see it’s soldered I place, I was hoping it could be pulled and replaced. This is why this site is so good.

Before I cause any further damage, i took your advice and called in the big guns for assistance.
Thanks for everyone’s input.