Reply To: OSSC + Seibu Cup Soccer PCB – issue – black screen

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#60061
BuckoA51
Keymaster

    55.48hz is quite far off spec indeed (59.94 is the standard NTSC refresh rate), I am quite surprised that changing to 4x made it work, just one of those strange quirks of compatibility with your particular display I suppose.

    You can in some instances centre the image by using the backporch settings in Advanced timing tweaker, but for aspect ratio you’re usually at the mercy of what controls your particular display offers.