Leaderboard

Good evening. So, to answer in order: To Midibob: I tested the components mentioned; they are OK. Next, to Northstar: Yes, when powered on, it goes into attract mode. No unusual flashing lights. The error occurs at the start point when the rollers spin. I've included some videos at the beginning (wrong dimensions; sorry). 1st video = power on 2nd video = attract mode + credit + subtract credit 3rd video = Stakes 1 to 10. Start, then error. IC6 on MPU3 manages AUX1 and 2. It might be different from MPU2. I'll keep the logic probe in mind; thank you. I'll see in the next few days whether I buy an oscilloscope or a probe, or both. In any case, thank you for your interest. 🙂 If you have any other ideas, Thank you.

Does the cabinet stay in attract mode when you start it? Are there any flashing lights, etc.? And does the error only occur during reel spin? I suspect a faulty PIA IC6. I've experienced the same thing, only with an MPU2. I use a scope or a simple logic probe. The logic probe can be connected to the 5V and 0V terminals on the MPU. Then you can test the IC's inputs and outputs. The LED flashes when an IC is active. If an IC is not active, the LED either doesn't light up or stays on.