Ernesto22 wrote on 2023-03-23, 03:53:

I whant to try if this can show me Composite CGA..

I wouldn't get my hopes up... most EGA cards with two RCA jacks don't actually output video on either of them. They're just wired to the Feature Connector header as on the IBM EGA; no actual composite video encoder on board.
A select few do support composite video output, but only in black and white IIRC.

You can find the datasheet for the G2 GC201 chipset here: http://www.vgamuseum.info/index.php/cpu/item/499-g2-gc201-pc. Curiously it does describe those connectors as composite video input/output - but apparently they still go directly to the Feature Connector, and there's no composite video anywhere in the chipset's own pin assignment (composite sync yes, but that's something different). So I'd say probably not...

VileR wrote on 2023-03-24, 01:18:

Ernesto22 wrote on 2023-03-23, 03:53:

I whant to try if this can show me Composite CGA..

I wouldn't get my hopes up... most EGA cards with two RCA jacks don't actually output video on either of them. ...

You can find the datasheet for the G2 GC201 chipset here: http://www.vgamuseum.info/index.php/cpu/item/499-g2-gc201-pc.

Thanks , I realize theres no encoder IC ...

I see very similar boards in the page you linked.. pcb layouts are different but the same chipsets.. any hint about jumpers and switches configuration??
Thanks!!!

PS I couldn't find the datasheet there...

The download link doesn't stand out on the page, but it's just above "related items".

No info about jumpers/switches unfortunately, but those are board-specific anyway, so different board with the same chipset could vary a lot.