GeekMan1222
Grand Master
I been working on a Bomber Man board I picked up in a broken state awhile ago. I have been playing around with it on and off.
I finally completely reflowed the Graphics chip pins and got ALOT of results. I went from no picture to picture. Its not perfect yet and I get a Ram Error at this point. I tried reflowing all the pins again but it makes no difference at this point. Continuity to the SRAM's running to the GPU seem normal. As a result I am getting some garbled sprites.
I am wondering where to attack next. I would assume its a ram issue since the board is saying it is getting ram errors. But I cant seem to rule out maybe some bad rom?? I am still learning about the inner workings of digital circuit repair.
I have an Oscilloscope I am borrowing from a buddy at the moment. So If anyone has any suggestions let me know.
https://drive.google.com/open?id=1cNyudcvDM4tXfjOOzWlouvbUOAuNKGWV
I already moved the Daughter board off the main board a bit incase i needed access to those SRAMS's so excuse the jank looking temporary solution
I finally completely reflowed the Graphics chip pins and got ALOT of results. I went from no picture to picture. Its not perfect yet and I get a Ram Error at this point. I tried reflowing all the pins again but it makes no difference at this point. Continuity to the SRAM's running to the GPU seem normal. As a result I am getting some garbled sprites.
I am wondering where to attack next. I would assume its a ram issue since the board is saying it is getting ram errors. But I cant seem to rule out maybe some bad rom?? I am still learning about the inner workings of digital circuit repair.
I have an Oscilloscope I am borrowing from a buddy at the moment. So If anyone has any suggestions let me know.
https://drive.google.com/open?id=1cNyudcvDM4tXfjOOzWlouvbUOAuNKGWV
I already moved the Daughter board off the main board a bit incase i needed access to those SRAMS's so excuse the jank looking temporary solution
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