Howdy folks!
So after waiting a month to get my monitor board back (thanks Chad), I finally get everything all plugged in, and Voila! I finally have a picture! This game was bought as "non-working", so I had no idea what was up. However, now I can actually troubleshoot.
Sound is good, RAM and all ROMs test okay. However, I have two issues:
1. Garbage on "moving parts" like the wheels pictured below, and when bees and such are moving on the screen. My skater is fine.
Any ideas which specific chip might be wrong or other ideas?
2. My joystick doesn't work at all. I rebuilt it all and have everything with perfect placement and alignment using RAM Control's parts. I have 2 original dual optical encoder boards, and neither work. I've gone through the test mode, and I don't get a single flutter of anything moving in any direction. I do have 2 new dual encoder optical devices/slots, but since I don't have any life at all from either board, I don't really think it's those, so I don't see any sense in soldering in new ones. I've confirmed that I'm running +5.08 V on my PCB, so I'm not running low there. I've disconnected and reseated all of my wires. Could both boards be completely dead? Is there 1 specific wire that might be bad? What else/where should I test?
I'm so close to the finish line after having waited to complete this restore for almost 2 months. I'd love to get this done this weekend. Thanks everyone!
So after waiting a month to get my monitor board back (thanks Chad), I finally get everything all plugged in, and Voila! I finally have a picture! This game was bought as "non-working", so I had no idea what was up. However, now I can actually troubleshoot.
Sound is good, RAM and all ROMs test okay. However, I have two issues:
1. Garbage on "moving parts" like the wheels pictured below, and when bees and such are moving on the screen. My skater is fine.
Any ideas which specific chip might be wrong or other ideas?
2. My joystick doesn't work at all. I rebuilt it all and have everything with perfect placement and alignment using RAM Control's parts. I have 2 original dual optical encoder boards, and neither work. I've gone through the test mode, and I don't get a single flutter of anything moving in any direction. I do have 2 new dual encoder optical devices/slots, but since I don't have any life at all from either board, I don't really think it's those, so I don't see any sense in soldering in new ones. I've confirmed that I'm running +5.08 V on my PCB, so I'm not running low there. I've disconnected and reseated all of my wires. Could both boards be completely dead? Is there 1 specific wire that might be bad? What else/where should I test?
I'm so close to the finish line after having waited to complete this restore for almost 2 months. I'd love to get this done this weekend. Thanks everyone!
