After @Darksoft posted the Thunder Force AC modified roms at System C2 Conversions, I was eager to give it a go.
I found a $10 board on eBay. This was a bootleg of course.
All IC's were soldered. So they needed to be desoldered and sockets placed again:
The EPROM IC's had to be erased with UV light. I don't have such equipment and doing it by sunlight was not recommendable
Hence I found this easy solution, with UV leds, so I recreated this situation:
Erasing took forever, around 1.5 day per EPROM, but at last, they were all clean.
Than the burning process started and voila; a board populated with fresh IC's again. The audio on the board was split over 2 IC's; Thunderforce AC only needed 1. So the 2nd audio IC is simply empty.
The game worked immediately
Happy gaming
I found a $10 board on eBay. This was a bootleg of course.
All IC's were soldered. So they needed to be desoldered and sockets placed again:
The EPROM IC's had to be erased with UV light. I don't have such equipment and doing it by sunlight was not recommendable
Hence I found this easy solution, with UV leds, so I recreated this situation:
Erasing took forever, around 1.5 day per EPROM, but at last, they were all clean.
Than the burning process started and voila; a board populated with fresh IC's again. The audio on the board was split over 2 IC's; Thunderforce AC only needed 1. So the 2nd audio IC is simply empty.
The game worked immediately
Happy gaming