Can I get the monochrome high resolution signal from an RGB SCART cable?

[Frank.Bullitt]

Hello,

 

I've got an Atari 1040STE with a SCART cable going into my OSSC.

 

Is there a way I can add a switch to this cable to enable high resolution monochrome video output? And if so, will this be safe to output to my OSSC, or will I need to modify it to make it a more standard signal?

[ParanoidLittleMan]

OSSC specs say that it supports VGA mode. So, monochrome mode should work with it - but not via Scart cable, where monochrome signal is not connected for sure. You need another cable for mono mode - like ST-VGA, or combined ST-Scart & VGA switchable. Later with 3 connectors.

[Frank.Bullitt]

19 minutes ago, ParanoidLittleMan said:

OSSC specs say that it supports VGA mode. So, monochrome mode should work with it - but not via Scart cable, where monochrome signal is not connected for sure. You need another cable for mono mode - like ST-VGA, or combined ST-Scart & VGA switchable. Later with 3 connectors.

Thanks for the quick reply 🙂

 

 

There is a cool VGA socket being sold on Exxos UK that I've been looking at but I was hoping there was a SCART option available, as the SCART cable I purchased has the L and R audio jacks built in, which is much more convenient when connecting to the OSSC.

 

https://www.exxoshost.co.uk/atari/last/storenew/#0107

 

The OSSC has a 3.5mm audio in socket, but it's being used by the Atari 7800 at the moment.

 

I was wondering if there was a way to splice in a switch to make pin 4 ground. Bit new to this morning stuff but I'm having a real blast 😁

 

 

[ParanoidLittleMan]

Of course, if you can open connector to Atari video out, can add there monochrome line and mono switch line - then can do switch and VGA ...

Hmm, and probably need H and V sync lines too .

Google for "atari st video monochrome to vga"

[Frank.Bullitt]

8 hours ago, ParanoidLittleMan said:

Of course, if you can open connector to Atari video out, can add there monochrome line and mono switch line - then can do switch and VGA ...

Hmm, and probably need H and V sync lines too .

Google for "atari st video monochrome to vga"

I've ended up going for a good quality Gold VGA cable and the VGA socket from Exxos as there seems to be interference that I'm hoping is just the scart cable.

 

I'll use an RCA to 3.5mm converter and a 3.5mm splitter for both the 7800 and ST to be connected at the same time.

 

Thanks 🙂

[leech]

On 7/30/2020 at 12:26 PM, Frank.Bullitt said:

I've ended up going for a good quality Gold VGA cable and the VGA socket from Exxos as there seems to be interference that I'm hoping is just the scart cable.

 

I'll use an RCA to 3.5mm converter and a 3.5mm splitter for both the 7800 and ST to be connected at the same time.

 

Thanks 🙂

With my OSSC in ST High, I had to tweak some of the settings (you can probably find the posts on the ossc forum).  Then it looked fantastic.  Otherwise you will probably get vertical 'pinching' of the display.