yavuzg
Member
Final Crash (Final Fight bootleg) repair - need help
Hey guys,
I generally do not touch to bootleg PCBs but just trying to help a friend out here... He desperately wanted a Final Fight and ended up with this bootleg PCB due to lack of funds. Moreover the PCB does not even work
this is a photo of the PCB which I got from the internet. I just didn't shot an actual photo of it (I'll do when I'm home)
He asked my help so here we are...
I've checked the couple of ROMs and the game turns out to be Final Crash.
I came to the point to get the sound section working (replaced some caps which were knocked off and fixed the amplifier IC's broken legs) and put a missing xtal (used an 11 Mhz one salvaged from another bootleg PCB which looks similar to this one).
The result I got is this...
The game coins up and starts and the music and sound effects can be heard but the graphics are as in the photo. It looks garbage but some how consistent with the game graphics. You can tell the colors changes as the game progress on the background.
The video is like you're trying to push a 31Khz signal to a 15Khz arcade monitor. But the sync is around 15Khz according to my scope readings...
Could one of the PALs (most probably near GFX roms) might be faulty? If so anybody knows if the PALs have even been dumped for this hardware, somewhere?
As I said I'm really unfamiliar with these bootleg PCBs, any help will be appreciated...
Hey guys,
I generally do not touch to bootleg PCBs but just trying to help a friend out here... He desperately wanted a Final Fight and ended up with this bootleg PCB due to lack of funds. Moreover the PCB does not even work
this is a photo of the PCB which I got from the internet. I just didn't shot an actual photo of it (I'll do when I'm home)
He asked my help so here we are...
I've checked the couple of ROMs and the game turns out to be Final Crash.
I came to the point to get the sound section working (replaced some caps which were knocked off and fixed the amplifier IC's broken legs) and put a missing xtal (used an 11 Mhz one salvaged from another bootleg PCB which looks similar to this one).
The result I got is this...
The game coins up and starts and the music and sound effects can be heard but the graphics are as in the photo. It looks garbage but some how consistent with the game graphics. You can tell the colors changes as the game progress on the background.
The video is like you're trying to push a 31Khz signal to a 15Khz arcade monitor. But the sync is around 15Khz according to my scope readings...
Could one of the PALs (most probably near GFX roms) might be faulty? If so anybody knows if the PALs have even been dumped for this hardware, somewhere?
As I said I'm really unfamiliar with these bootleg PCBs, any help will be appreciated...