Psycko PCB Strikers 3 not bootîg

[Retro Mecano]

Hello,

Not familiar with these special games (got o ly to repair few MVSs), i got this PS5 Psycko arcade PCB with below issue.

It's booting to a garbeled video with same pattern rapidly deflecting over the screen. No sound behind,i doubt the game is actually booting.

Any idea where to start from?

 

[nem]

Check the GAL16V8D.

 

[Retro Mecano]

Check the GAL16V8D.

I was checking on it, and it seems my GQ4x4 programmer does not support them to read or write. It seems it does not do any Gals or Pals. Great..

Any alternative? To be honest i start to have many issues with this GQ4x4 even bur’îg regular eproms, and i am wondering what wpuld be the best choice to replace it.

 

[djsheep]

i am wondering what wpuld be the best choice to replace it.

https://www.arcade-projects.com/thr...ammer-for-most-arcade-hobbyists-to-have.4046/

 

[hrvat9]

had the same screen you’re seeing on my sol divide when the custom has loose pins. Reflow the 2 big customs

 

[Retro Mecano]

had the same screen you’re seeing on my sol divide when the custom has loose pins. Reflow the 2 big customs

I just did that, sadly with no change in behaviour..

 

[hrvat9]

I just did that, sadly with no change in behaviour..

Hm that’s odd, have you tried pressing down on one and then starting up the pcb? Just to make sure you got all the pins down right

 

[Retro Mecano]

Hm that’s odd, have you tried pressing down on one and then starting up the pcb? Just to make sure you got all the pins down right

Already did that, and reflowed most of custom, memory ICs on the board. Checked for cut traces.. nothing changed.

It's a bit difficult because i don't have the schematics behind, like MVS slots. That would make the jib somehow easier.