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 Post subject: test
PostPosted: Wed Jul 18, 2018 10:27 am 
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Joined: Sun Jun 12, 2011 12:06 pm
Posts: 355
Location: Poland
Some of my `fixes` are really crazy (probably no one would even want to waste time for that), for example:
* Fixing broken (blob) CHR-ROM memory:
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* Fixing broken (blob) mapper chip (MMC1):
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* Fixing broken (blob) CHR-RAM:
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* Fixing broken PAL chip -> replacing with Xilinx CPLD (version 1)
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* Same but with Altera CPLD:
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* This one consisted of 2x 8 MBit memory, which had single data bus pins broken -> instead of replacing them, I just installed one memory that fixed data for the broken pins:
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* Broken ASIC BF9096 in Codemaster cart -> fix with CPLD:
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* MMC3 chip had broken IRQ line -> I had to implement this on cpld:
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*JY-120 (45 in 1): Some upper PRG/CHR lines of glob-mapper were broken but also reading PRG-ROM returns non consistent results
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*Wario Land: CHR-ROM was broken, but instead of soldering 32 wires, soldered add-on board:
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*Dragon Ball: Mapper chip was broken, but I was curious how to read PRG/CHR roms, so I soldered add-on board with latch:
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Some more ROM fixes:
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Image Image


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