Recent content by philjay

No, actually the problem is very strange. With original bios works perfect with unibios not. Tested 2 unibios and i have the same issue.

Hi guys, fixed. I just reflowed the D0 and issue gone.

I saw that, will try tomorrow and keep you informed. Thank you

The tricky part is the same button on 2 ports

Yes, and i see the d stuck on both controller, it’s a tricky problem, other buttons and directions have no problems

Yes, c1, ferrite and cre401. Same issue. Could it be the d0?

No, the problem started just when a cart is inserted and obviously with console powered. Checked the c1 and the point on controller and when a cart is inserted is shorted, without working normally 5v to 0 when pressed.

Yes, tested 3 controllers and is the same, tested in other neo geo the problem is not present. The issue is present just when the controller is inserted, one or both is the same short on D

Hi guys, i have a neo geo 3-5 with a strange issue. I have on both controller port the D button always pressed. Obviously i checked other pad and joystick but i have the same issue. The problem is present just when the controller is inserted, and when a cart is inserted. I checked the voltage...

gfx chips, which one?

Hi guys, can i have an advice? I bought a broke neo geo on ebay with this problem: No audio and lines on screen. The no audio is currently almost solved, there are some traces between z80 and cart slot broken. The video i'm without clue unless they are broken traces too. Neo diagnostic says: all...

Hi, a question. I need to do a diagnostic cart for an AES. I have a converter MVS/AES can i use a MVS cart with the converter to test the Z80 in a AES system instead of a regular AES cart?

Hi, i have this issue after a couple of minutes of play with every cart and also in the headphone. Can anybody points me in the right direction? Recap? Bad Yamaha? Or any professional in italy that can fix this? Thank you