marqs85

In both cases you need to lift video encoder subcarrier pin and connect a wire to it. Other end of the wire comes from SNES: CClk.o pad on multi-board (also...

That's within capabilities of the HW, but it'd require rewriting some core parts of the firmware and adding configurations for additional PLL multipliers. That would also enable e.g. multiplying 640x480p...

v1.xx series firmware should be more robust to unusual HV sync. More details on the firmware and its requirements are [here](https://videogameperfection.com/forums/topic/ossc-v1-xx-series-beta-firmware/).

H.backporch up to 511 is possible in v1.xx series. More details on the firmware and its requirements are [here](https://videogameperfection.com/forums/topic/ossc-v1-xx-series-beta-firmware/).

@DavidOliM @saturdayinthefart if an audio channel is missing, the board has a defect or has been damaged. Anyway, I just tried configuring the digital mixer of PCM1862 and managed to...

Mono mode can be now enabled on v1.03 fw. More details on the firmware and its requirements are [here](https://videogameperfection.com/forums/topic/ossc-v1-xx-series-beta-firmware/).

Centering picture via backporch/synclen adjustment should not affect aspect ratio. Anyway, v1.03 firmware (more details [here](https://videogameperfection.com/forums/topic/ossc-v1-xx-series-beta-firmware/)) has the mask option in the same Adv. timing menu which makes it faster...

Are you able to test with another TV just to rule out the centering issue does not only occur with LG sets?

The centering issue seems to specific to LG - perhaps they don't play nice with 59.19Hz refresh rate? Missing of the last column apparently is a feature of MV-1C and...

The composite/s-video encoder should receive stable (subcarrier) clock and sync when connected as described earlier so I don't understand why distortion/flickering is present.