Scucci
Well-known member
So, I've been working on my Breakout PCB, I haven't made any real progress.
Here's what happens... I plug the boards in, turn the machine on and I get nothing one the screen (monitor needs repair but I have it hooked into the RCA jacks on a TV right now). There is a small, very faint hum bar that moves through the screen, you can barely see it. But, the coin counter works.
But, after playing around earlier, I saw that if you hit the credit switch that hum bar gets a LOT brighter. But, if I unplug the coin counter, that doesn't happen. ... but I still get nothing on the screen (minus that faint humbar).
I have a steady 5V on the board, but with that said the ceramic resistor, big diodes in the bridge, and the regulator get hot... fast... ... very hot. I'm pretty sure that's not normal. The diodes have already been replaced with new ones that are good... so I doubt their an issue. I pulled and checked the regulator, it seems good. It's no grounding on the heatsink or anything like that.
Any ideas as to where I should start?
Here's what happens... I plug the boards in, turn the machine on and I get nothing one the screen (monitor needs repair but I have it hooked into the RCA jacks on a TV right now). There is a small, very faint hum bar that moves through the screen, you can barely see it. But, the coin counter works.
But, after playing around earlier, I saw that if you hit the credit switch that hum bar gets a LOT brighter. But, if I unplug the coin counter, that doesn't happen. ... but I still get nothing on the screen (minus that faint humbar).
I have a steady 5V on the board, but with that said the ceramic resistor, big diodes in the bridge, and the regulator get hot... fast... ... very hot. I'm pretty sure that's not normal. The diodes have already been replaced with new ones that are good... so I doubt their an issue. I pulled and checked the regulator, it seems good. It's no grounding on the heatsink or anything like that.
Any ideas as to where I should start?
