I'm really hoping somebody has an idea what I should try next. It only resets once when in a great while when the lower left drop targets reset. The targets themselves do pop up but then the game resets. I checked all the fuse holders and they seem like they are fine and fuses themselves snug.
On the CPU board J11 pin 1= 5.08 V, pins 3 and 6 = 13.8 v ( one was negative volts)
On the driver board J16 I got the 5.08v and 13.8v. At J10, I got 27.4 vac and the 50v pins read 77v. I was surprised that was so high but I read somewhere that it should be that?
I wanted to look at and measure some voltages on the optos but I'm not sure where they are. I looked around but I'm just not sure. I'm obviously new to this hobby. I'm guessing I should replace the coil for those targets? With all the wires around it it doesn't look like it would be easy for me. I have read they are associated with Q5. Should I replace that too? Can it be tested? Where is it exactly?
I once again reseated the connector I replaced already. It's a nice tight connection but should I have replaced those header pins too? It hadn't reset since I reseated the connector but it's so intermittent that could be just a coincidence. Thanks for any help.