pandora's box

Hey Team. Very new to arcade restoration and electronics repair. I have a complete Candy Cab, Power Supply, CRT and an MVS MOBO + Game Cart. The MVS has a Z80 error, so I started with a clean and replaced the stock battery with a battery holder. I had no magic smoke when I turned the system...

I have a cocktail arcade table powered by a Pandora Box DX. Several months ago, the game menu went blank (no games listed). When I enter the settings menu, I see a full list of games. I tried to reset the device, but it did not help. I tried opening up the pandora box DX to ensure the flash...

I put a Pandora's Box DX in my Versus City but none of the buttons worked, just the stick on the P1 side. My friend said I'd need a CHAMMA to JAMMA adapter but I just hooked that up and still none of my buttons work. Thanks for your help.

I have a Pandora King of Air 2 JAMMA (same HW as DX) that I'm with tooth and nail want to downscale from 640x480 (it does not come with 15Khz in vert mode). I now managed to get hold of a Ultracade UVC which at first seemed to work flawless but there's one weird artifact. At the bottom of the...