Recent content by r27blades

Hi All, Appreciate you reading. I am trying to repair a Metal Slug 3 and need a donor board as I have a failing CMC. Would happily take recommendations for games I should try to look for as well. I hate the idea of sacrificing a full working cartridge to restore mine but I get the sense donor...

That’s amazing! OK I will try that this evening. What gauge do you recommend? Assuming AWG 18 would be fine?

Thanks for sharing this! Okay, so would I bridge them or tied out to a grounding spot in the cabinet? If I am doing a grounding spot, I would need to create one… any guidance there? And sorry last one, does that look normal, or does it seem to be some kind of interference from your perspective?

Hi Folks, Appreciate you reading. I have converted over a Nova Blast cab into a more traditional candy cab with a dedicated PSU for the Jamma and introduced a power strip to feed my monitor and several USB-powered items. The power supply I am using is a 5V/10A attenuated PSU I bought from...

Hi @Sinosphere, After getting the great advice ShootTheCore shared, I spent about a week looking up any other threads, articles, or anything on Google to learn as much as I could. I couldn't find much. There is a repair shop, 1Up Restorations, not far from me in NY. George (who is the owner)...

I will definitely reach out to Recreativos Piscis. Have you worked with him before? Just curious how engaged with the community he is. Do we know what typically causes a failure? Is it a power issue, an EPROM issue? As with any of these boards, I spent a lot on it and would definitely want to...

Hi @ShootTheCore, Really appreciate you sharing this and for taking this deep dive with me. The game is running behind the graphical mess and periodic purple screen. You can hear audio and blindly navigate your way into the first level. Here is a video. I feel like the graphical sequencing is...

Got it, here is my breakdown of signal flow with part links. Routing into Switcher: PCB Amp 4 pins > EZ Jamma Gameboard Interface > EZ8 Switcher Routing out of Switcher: EZ8 Switcher speaker 4 Pin > Stereo to 3.5mm adapter > Dayton Audio KAB-2150 Amp Here is a diagram of the Switcher board...

Yikes. Sounds like I am in a bad spot with this one. What causes this to happen usually? It was working fine the last time I powered it on a few months ago, and the board is extremely clean. I'll have to do some shopping to run these tests. I was hoping an eprom swap was going to solve my...

Hi Nem, Thanks for the reply. Apologies, I was replying and reviewing notes. I meant that I had read earlier that it is a balance issue to go from a PCB amp directly into another. Here is what I learned. This also touches on what @twistedsymphony asked me to confirm. I reached out to Jim from...

I can try that. Quick Q though - I thought you said they should not go straight to the amp earlier?

Thanks for jumping. Sorry when you say custom is this something I can run a test on to confirm or rule out?

Hi Everyone, Thanks for reading and taking the time to stop by. I am trying to work through a graphical issue with my Raizing Batrider board. The game loads, and I can hear the audio. I can press buttons, and the game starts, but the graphics are garbled. I tested the voltage at the PCB, which...

Hi @nem, Appreciate you jumping in and looking to help. Here is some updated information from my testing and discussions with the previous owner. After speaking with the seller, I learned that the board is a conversion. It is running a modified program to disable the protection module (prone...

Hope you are doing well my friends! I noticed something with my Golden Axe 2 board and was hoping to ask for your guidance. I initially noticed some graphical anomalies showing up when the game was running. Vertical lines that looked like banding. I ran the memory check in the test menu and...