MiSTer FPGA Forum

Hello all,

I'm using an Ultimarc VGA RGB amp to get my MiSTer output to proper levels for an old WG K4900 arcade monitor. The RGB amp was built with the assumption that 5V would be present on pin 9, which apparently was the standard on computer graphics cards (at least in the 2000s).

I have a UGREEN VGA converter which works great but doesn't have 5V on pin 9.

I've solved the issue so far by just soldering a cut USB cable to the RGB amp, but I was wondering if anyone happened to have used a different HDMI->VGA converter that does have 5V on pin 9?

Thanks

I have 6 HDMI to VGA adapters and the only one with 5v in pin 9 is a Tendak, but that one doesn't work with 480i at all on MiSTer.

I was going to see if I can mod one of the other adapters to get the 5v, but not sure how. I have an automatic SCART switch that needs voltage on SCART pin 8, the Tendak is the only one I have that works with it, but I don't want to sacrifice 480i