I removed the resistor and installed battery everything was working great. I Actually built up credits and played for hours. I unplugged the machine to move it and when I plugged it back in and turned it On, Only Fluorescent lights came on. It appears I’ve lost the lower Voltage(s), Nothing comes to life. No door buzzer, display. I don’t have any schematics for this machine, Any suggestions where to start my troubleshooting?

To Stayouttadabunker, you are the greatest machine fixed, I replaced that card with one that showed almost no depression on those two and works great. Iam having another issue though when I run the machine on with the switch sometimes it doesn’t come on, I turn it off and on several times and it then comes on. It acts like it’s trying to come on sometimes with the lights flicker on the board.
I tried replacing the off/on switch with another from a known working machine with no charge. Pulled and reset the power supply. No change. Not sure what else to try.
Thanks again for all your help getting it to give credits when accepting bills, you’re the greatest.
Thanks
Todd

Do you have the manual that shows the dipswitch settings?

I have a few books and I will look into the dip switch settings. Which dip switch settings are you talking about the MPU or Bill Validator?

 

All of the wiring is correct.

Welcome!!

It's a Bally EM. Go to www.slotmachinerepair.com and click on Helpful PDF's and download the free Bally EM #2400 service manual.
Many techs here work on the EM series so post your questions here and someone will respond.