PCB Repair Logs Bionic Commando

From Aussie Arcade Wiki
Revision as of 08:26, 5 February 2013 by Brad (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search

Bionic Commando

Bionic Commando
Marquee bionic commando.jpg
Manufacturer Capcom
Year 1987
PCB Image Reserved
Pin Out Jamma Pinout

Repairer: Arcade King
Forum Thread: Bionic Commando PCB Repair

Original Capcom PCB

Problem: Character graphics all messed up, and split in half, background was fine.
Fix: Bad output on a 74ls86 pin 8 @ 9J on the bottom pcb. While this fixed the split sprites a lot of the graphics were still messed up.


Pcb repair bionic commando 1.JPG


Problem: Character graphics mostly messed up, main character was fine until he extended it bionic arm thing and went up, bad guy graphics were stuffed.
Fix: Using the scope I was able to trace the corrupted graphics back to the roms containing the character sprite data. Taking each rom out and reading it showed that roms 9, 19, 20 and 22's data was corrupt. Reprogramming some new roms fixed the problems 100%.


Pcb repair bionic commando 2.JPG


PS: TOP GAME!


Back to PCB Repair Index