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ikamusume

Student
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Aug 8, 2019
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Seoul, Korea
Ek60XRiU0AABHFR


There was a request from people who has a dead Twin Cobra PCB within the Korean arcade community.

Their common problem was a GXC-0x DSP that had been previously died. A custom numbered DSP is actually a TMS320C10, and its firmware can be executed externally by activating its microprocessor mode, ignoring a program in the internal Mask ROM area. So without obtaining an EPROM version with a CERDIP package with the glass window we can use a cheapest chip.

This board can change DSP's firmware so it can be used on all four games.
 
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