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Neo Geo 4 Slot I will take the Neo Geo 4 slot if its still available.

update I replaced C610, R402, and R303 and still having issues with no vertical sync. I am thinking of replacing U601 and U701. I did a closer inspection of the neck board and do see some browning on the PCB by three chips and found a lifted trace on the bottom. Also I notice that three large...

I have a 27K7401 monitor with a single horizontal line on the screen. I have checked all of the resistors and capacitors in the service repair guide for K7400 and may have found at least R303 out of spec, R402 with an open, and a possible bad C610. I am having issues verifing what value R402...

I am interested in one with menu support.

I made some progress on my scrolling garbage issue. I used the Mame romident tool and found the roms at 6e and 5h had no match, 5e matched as Hangley-Man, and the rest matched as Puck-Man. I burnt new roms for 6e, 5e, and 5h using the Puck-Man Japan set 1. The board boots up now and passes the...

Before I adjusted the voltage up I had 5v at the power supply and 4.1v at the pins on the Jamma connector at the board edge. The board would not start to work until I had about 4.5v at the Jamma connector.

I had a similar issue with the black screen on my Marvel vs Capcom. I checked the voltage on the suicide battery and it was good. I checked the 5v at the jamma harness and it was low. Once I adjusted the voltage on the power supply the game booted up. It is possible that your A board is OK just...

Power I am definitely powering the board thru DC. I currently have a switcher connected to a Jamma to Pacman adapter that I made. When I originally fired this board up I had a static picture. After replacing the Z80 the picture started scrolling. I have also replaced the 2114 chips in 4K - 4R...

Thanks Thanks for the warm welcome!!

I am having issues with a bootleg Pacman board that is showing scrolling garbage on the screen. I also having issues identifying what bootleg board I have. video of scrolling garbage: https://www.youtube.com/watch?v=ovDQRZ7a5M4 board screenshot...