Recent content by mSlider

Update (03-mar-2025): Today I start reflowing, first the 053251 Konami custom and boom!, after that I powered on the board and no sign of "orangeish" background color issue. To confirm I let it cool down for about and hour and power on it again, seems the problem is finally solved. Conclusion...

It's not solved, I still have to try to reflow those ICs. But the problem is getting more and more limited, let's hope that's it... I'll post with the results soon.

Update (01-mar-2025): Today I use the hot air gun to prove the "temperature" warm issue theory, I have heated the PCB on the side opposite the jamma connector (custom Konami graphic chips zone) and power it on, the problem is gone, I did it 3 times this process (letting the PCB cool between...

Update (27-feb-2025): The 273s arrived are replaced after I added a pair of sockets. Same issue, nothing change. Inspected the traces and probe pin by pin on those 273s and all make good contact. I think I can rule out those ICs now. ;-) I try to bend the pcb and push every single IC, and the...

I've tried pushing almost all the IC's but nothing changes (seems that are working testing with the logic probe), I will desolder those 273s and see if any underneath trace is making weak contact or broken. I've ordered some 273s just in case, will see...

Thanks for the help, at least I've been able to start looking somewhere Update (23-feb-2025) : I have tried mounting the 74LS273 on top of those two that @HardAzRockz indicated without success, it continues doing the same thing. I have also tried re-soldering some solders in the bottom but...

Update (15-feb-2025): I left the PCB on for a while (2-5 minutes) and it seems that the problem has disappeared. Even if I restart it, the problem is no longer there. But if I disconnect it for a while and reconnect it, the problem appears again. My suspicion is whether the cause is due to...

Hi folks! I changed the capacitors on the Vendetta PCB and after going through everything and turning it on I see that it shows a graphical error: Only on the screens between phases and in player selection do some graphics appear with an orange background, when the background should be black...

You're right, it adds more external elements. I remain attentive to your approach, to see if I can help, I am interested in the issue of being able to preserve the cartridge circuits.

Have you thought about using an fpga, for example ICE40HX1K? I mention this because there are free tools to program them and also these fpga can be a little cheaper.

Wonderful, thanks for share it man!

welcome to the forum! Like to see your Egret II cabinet.

In one for me too!

Genial, yo también estoy acabando la mia (es una Naomi Universal Cabinet con las patas recortadas). Si tienes alguna duda y te podemos ayudar aquí estamos!

Bienvenido! Con ganas de ver mas fotos de esa maquina.