Tuesday, 15 May 2018
Wednesday, 7 March 2018
Thunder Force AC - Tecnosoft 1990 - Bootleg
サンダーフォースAC - Thunder Force AC
PCB Images
This particular bootleg ran slow. Looking at the PCB it was evident where the problem was. A 48MHz oscillator had been used in place of the standard 53.69MHz one.
Unfortunately 53.69MHz clocks are pretty scarse nowadays so a cheap 54MHz clock from eBay was used instead.
PCB Images
This particular bootleg ran slow. Looking at the PCB it was evident where the problem was. A 48MHz oscillator had been used in place of the standard 53.69MHz one.
Unfortunately 53.69MHz clocks are pretty scarse nowadays so a cheap 54MHz clock from eBay was used instead.
The board now runs at a much better speed. ^_^
Pics/info of an original board can be found here.
Tuesday, 14 November 2017
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