chacal231077
Grand Master
Konami Cobra System Never Dies 
Konami Cobra System Disassembly for Archive
- Thread starter chacal231077
- Start date
lets see it running!Konami Cobra System Never Dies
chacal231077
Grand Master
Very good IdeaI have been thinking about making a BGA socket because of frequent failures of BGA chips on model 3 step2.0 graphics boards.
This may be fixed by socketing the Cobra board's BGA chips.
https://www.advanced.com/products/bga-socketing-systems/socket-adapter-systems
already, before any repair, it will be necessary to consolidate the PCB upstream to avoid any new thermal deformation.
I had thought of a Rail system (with an insulating coating) in metal all around the edges of the PCB with crossed supports underneath like on the Universal Motherboard Backplate CPU Heatsink Mounting Bracket
I don't know if you understand my idea
chacal231077
Grand Master
I have been thinking about making a BGA socket because of frequent failures of BGA chips on model 3 step2.0 graphics boards.
This may be fixed by socketing the Cobra board's BGA chips.
https://www.advanced.com/products/bga-socketing-systems/socket-adapter-systems
BGA DataBook adapter
The Mill-Max BGA Socket and Adapter System
And Heat Sink Clip, BGA or other
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what's to stop the BGA adapter from separating from the board? to me this seems like you're just adding more mechanical points of failure?
Hammy
Enlightened
800 wires should do it
I'd wager that the cobra's chips are compromised, and that bga rework (or a socket) isn't going to actually fix anything
are any those used on any other device or are they unique to Cobra?
I can find some off-the-shelf/obsolete stuff (IBM power PC, fifo ram, fgpas) but other stuff I haven't been able to source. Could just be obfuscated serial numbers but it's obfuscated enough to keep me from working on it lol. I do assume the fpgas aren't fried (those would be show-stoppers if so), but the bga parts on the video board under all the heat-sinks are dead-ends for me.
WangDrum
Student
I got a Cobra board. I need to make a power supply, but I'm curious what the 3.3 volt connector is divided into purple and blue wires. Are both purple and blue 3.3v or some other voltage?
It's been a LONG time since I hooked one up, but I think all I used was this wiring diagram: https://www.arcade-museum.com/manuals-videogames/F/Fighting-WuShu--Fighting-Bujutsu.pdf
Good luck, I hope it boots. It very likely won't, you'll need a new RTC at minimum. Very likely a new HDD, and if it was ever operated or moved, the GPU board is probably dead.
WangDrum
Student
thank you! I will try to make it well while looking at the wiring diagram. I need to boot after replacing the rtc and hdd. I hope the bga isn't broken.
Hammy
Enlightened
chacal231077
Grand Master
Hi! 
I quickly scanned the diagrams.
I'll publish the rest later. I have two original Japanese manuals.
Of the two, one is a bit ugly on the outside.
I think I'll sacrifice it
by removing the binding for better scanning and proper archiving.
I must have found a very good book guillotine.
Power Supply original Konami Windy II Cabinet
Fuji Terminal Industry Glass Tube Fuse T-250V 30A 8mm
I quickly scanned the diagrams.
I'll publish the rest later. I have two original Japanese manuals.
Of the two, one is a bit ugly on the outside.
I think I'll sacrifice it
by removing the binding for better scanning and proper archiving.I must have found a very good book guillotine.
Power Supply original Konami Windy II Cabinet
Fuji Terminal Industry Glass Tube Fuse T-250V 30A 8mm
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WangDrum
Student
wow! thank you so much! I'll try wiring it.Hi!
I quickly scanned the diagrams.
I'll publish the rest later. I have two original Japanese manuals.
Of the two, one is a bit ugly on the outside.
I think I'll sacrifice it
I must have found a very good book guillotine.
Power Supply original Konami Windy II Cabinet
chacal231077
Grand Master
WangDrum
Student
I successfully wired the power and turned it on, but an 'E1' or '13' error occurred.
I think it's probably a gpu board(maybe BGA cold soldering) issue. Does anyone know about this?
chacal231077
Grand Master