Elizabeth1701 Posted July 31, 2016 Share Posted July 31, 2016 So it had been working fine, then the other day it started not wanting to work! Even though I had just recently cleaned all that game contacts and console fingers. But so I cleaned it a gain even carefully pulled back the label and took it out. Made sure they were as clean as could be. It seems to have some dark spots like pitting/corrosion on the contacts, more in them than on them so its not coming off. But not bad and more up towards the casing. But it could be causing a connection issue with the rom chip? First I have to check the continuity between each contact and the chip. But was just wandering if the game could be having a contact issue with a finger on the console that the other games may not use? Unless they are all used with every game? I was thinking if the PCB is bad and the ROM Chip good I could maybe solder it to another PCB! So unless this could be a sign of the ROM Chip failing I may try that. I have a Bad Donkey Kong (But was thinking of taking a closer look at it, other duplicates I could steal a PCB from. Right now it will work randomly but most times it wont. Plus I tried it in other consoles, only game that is acting up I know of. Quote Link to comment Share on other sites More sharing options...
Elizabeth1701 Posted July 31, 2016 Author Share Posted July 31, 2016 Now the Cart is working fine again. Probably a spec of dust that just didn't want to leave! Quote Link to comment Share on other sites More sharing options...
Elizabeth1701 Posted August 3, 2016 Author Share Posted August 3, 2016 Well it apparent;y is working fine in one console at least. So I'm guessing this may be a console bug apparently the Indy 500 has one. Interesting enough I believe that cart works in this console so if it is, it may be a different issue. Indy 500I f a unit works on everything except Indy 500 then pin 23 o f the A202 isprobably shorted to a data line . Could maybe be a bug in and older rev of the IC? Quote Link to comment Share on other sites More sharing options...
Elizabeth1701 Posted August 6, 2016 Author Share Posted August 6, 2016 Problem Solved! I had swapped the I/O chip with a newer one from another board trying to correct a problem with the left input line, which turned out to be a weak power input trace. So I put the original I/O chip back in that fixed the Chopper Command Problem Quote Link to comment Share on other sites More sharing options...
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