Video Problems with Dreamcast PicoPSU / DreamPSU when using HDMI adapter or VGA BOX

[/dreamcast]

Hi,

I repair, mod and fix dreamcast units. There is one thing I can't really understand and can't find a conclusive answer on the internet. When I replace the power supply with a DreamPSU and use the machine with a SCART or Composit cable, the image is clean. When I use it with a HDMI adapter or the VGA box, I tend to get rolling bars flowing over the whole image, which are not there when using the normal power supply. I use a Leicke 60Watt 12V 5A power supply, which tend to be a bit better than the cheap supply's they ship with the DreamPSU boards.

Does anyone have some info on this. Do I need to tweak something on this boards, to get a more clean image.

You can see the distortion in the link shared.

https://youtube.com/shorts/sq0WeS8zFec?feature=shared
submitted by /u/Defiant_Channel_5182
[link] [comments]

Source: https://www.reddit.com/r/dreamcast/comm ... _dreampsu/