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Hello everyone,

I do have a sms 1 with scart rgb cable.

When i connect it to my sony pvm it shows that rgb signal ok and picture is fine.

i also have a tv “toshiba 15vl64g” which has 2 scart inputs.

1 rgb
2 svideo i suppose

When i connect sms to first input i only got audio. No video.

When i connect it to scart 2 ; got picture but awful :)

What must be the problem with tv scart?

I have tried ps2 rgb with input 1 it works great!

Can you add some more details? What exactly are you seeing?

When connecting to the first input, do you get any picture at all? It’s the screen black or do you get a picture that’s not stable?

I’m not a hardware guy, but my guess is that only the first of the two inputs supports RGB, but it somehow doesn’t like the sync signal coming from your console. The second input probably only supports composite video, which explains the stable but poor picture.

No screen at all. Only audio.

But if i connect to pvm rgb. Works well.

If you don’t get a rolling picture but no picture at all, then it’s likely that your cable is not properly wired. Have you tried opening the plug to see if the RGB lines are actually connected?

Not every SCART cable is an RGB cable, there are many that only support composite video. This would explain the behaviour on your Toshiba TV. If the picture looks fine on the other one that could very well be just the TV handling the composite signal better, it doesn’t necessarily mean that it’s getting signals over the RGB lines.

When i connect it to sony pvm and it says on screen “RG” isnt mean cable device and pvm all rgb supported?

Exactly what cable do you have?

Okay i don't how to answer that.

My cable is one side SMS I din cable. other side Scart.

If you ask how i know it is RGB;

I connect it through my PVM's RGB ports (using RGB to female scart cable)

when i power on PVM detects it is RGB signal and shows the image. If it wasn't RGB it wouldnt work either.

I also tried same cable with sony trinitron 14" tv using it's scart input and also works fine.

oguzog wrote

Okay i don't how to answer that.

What I mean is where did you buy it from?

Long long time ago. My best guess from aliexpress . Or somewhere locally. Do u need to see inside?

Perhaps the lcd tv does not like a 240p/15khz signal.
While the ps2 ouputs 480i.

slogra wrote

Perhaps the lcd tv does not like a 240p/15khz signal.
While the ps2 ouputs 480i.

Hmm. Any other system with 240p/15khz? Maybe i can try that too crosscheck?

I have dreamcast, snes, megadrive,

I think it would still be useful to open up both plugs to see how the contacts are wired.

oguzog wrote

slogra wrote

Perhaps the lcd tv does not like a 240p/15khz signal.
While the ps2 ouputs 480i.

Hmm. Any other system with 240p/15khz? Maybe i can try that too crosscheck?

I have dreamcast, snes, megadrive,

Yeah, snes and megadrive are also low res 240/15khz.

slogra wrote

oguzog wrote

slogra wrote

Perhaps the lcd tv does not like a 240p/15khz signal.
While the ps2 ouputs 480i.

Hmm. Any other system with 240p/15khz? Maybe i can try that too crosscheck?

I have dreamcast, snes, megadrive,

Yeah, snes and megadrive are also low res 240/15khz.

Well, Snes with RGB cable works well :) I think something missing with my SMS RGB cable. I will check inside and let you know.

Can someone also post pinout for correct RGB cable?

Author	Message
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	SMS I - scart rgb cable question Posted: Thu Oct 05, 2023 4:21 pm
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Hello everyone, I do have a sms 1 with scart rgb cable. When i connect it to my sony pvm it shows that rgb signal ok and picture is fine. i also have a tv “toshiba 15vl64g” which has 2 scart inputs. 1 rgb 2 svideo i suppose When i connect sms to first input i only got audio. No video. When i connect it to scart 2 ; got picture but awful :) What must be the problem with tv scart? I have tried ps2 rgb with input 1 it works great!

Kagesan Joined: 01 Feb 2014 Posts: 878	Posted: Thu Oct 05, 2023 5:22 pm
Kagesan Joined: 01 Feb 2014 Posts: 878	Can you add some more details? What exactly are you seeing? When connecting to the first input, do you get any picture at all? It’s the screen black or do you get a picture that’s not stable? I’m not a hardware guy, but my guess is that only the first of the two inputs supports RGB, but it somehow doesn’t like the sync signal coming from your console. The second input probably only supports composite video, which explains the stable but poor picture.

oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Posted: Fri Oct 06, 2023 10:50 am
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	No screen at all. Only audio. But if i connect to pvm rgb. Works well.

Kagesan Joined: 01 Feb 2014 Posts: 878	Posted: Fri Oct 06, 2023 12:41 pm
Kagesan Joined: 01 Feb 2014 Posts: 878	If you don’t get a rolling picture but no picture at all, then it’s likely that your cable is not properly wired. Have you tried opening the plug to see if the RGB lines are actually connected? Not every SCART cable is an RGB cable, there are many that only support composite video. This would explain the behaviour on your Toshiba TV. If the picture looks fine on the other one that could very well be just the TV handling the composite signal better, it doesn’t necessarily mean that it’s getting signals over the RGB lines.

oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Posted: Fri Oct 06, 2023 1:08 pm
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	When i connect it to sony pvm and it says on screen “RG” isnt mean cable device and pvm all rgb supported?

ApolloBoy Joined: 30 Jan 2007 Posts: 317 Location: San Jose, CA	Posted: Fri Oct 06, 2023 5:36 pm
	Exactly what cable do you have?

oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Posted: Fri Oct 06, 2023 6:25 pm
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Okay i don't how to answer that. My cable is one side SMS I din cable. other side Scart. If you ask how i know it is RGB; I connect it through my PVM's RGB ports (using RGB to female scart cable) when i power on PVM detects it is RGB signal and shows the image. If it wasn't RGB it wouldnt work either. I also tried same cable with sony trinitron 14" tv using it's scart input and also works fine.

ApolloBoy Joined: 30 Jan 2007 Posts: 317 Location: San Jose, CA	Posted: Sat Oct 07, 2023 5:07 am
	oguzog wrote Okay i don't how to answer that. What I mean is where did you buy it from?

oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Posted: Sat Oct 07, 2023 5:51 am
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Long long time ago. My best guess from aliexpress . Or somewhere locally. Do u need to see inside?

slogra Joined: 09 Jun 2014 Posts: 378	Posted: Sat Oct 07, 2023 12:52 pm
slogra Joined: 09 Jun 2014 Posts: 378	Perhaps the lcd tv does not like a 240p/15khz signal. While the ps2 ouputs 480i.

oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Posted: Sat Oct 07, 2023 1:02 pm
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	slogra wrote Perhaps the lcd tv does not like a 240p/15khz signal. While the ps2 ouputs 480i. Hmm. Any other system with 240p/15khz? Maybe i can try that too crosscheck? I have dreamcast, snes, megadrive,

Kagesan Joined: 01 Feb 2014 Posts: 878	Posted: Sat Oct 07, 2023 3:03 pm
Kagesan Joined: 01 Feb 2014 Posts: 878	I think it would still be useful to open up both plugs to see how the contacts are wired.

slogra Joined: 09 Jun 2014 Posts: 378	Posted: Sat Oct 07, 2023 3:43 pm
slogra Joined: 09 Jun 2014 Posts: 378	oguzog wrote slogra wrote Perhaps the lcd tv does not like a 240p/15khz signal. While the ps2 ouputs 480i. Hmm. Any other system with 240p/15khz? Maybe i can try that too crosscheck? I have dreamcast, snes, megadrive, Yeah, snes and megadrive are also low res 240/15khz.

oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	Posted: Wed Oct 11, 2023 6:49 am
oguzog Joined: 04 Jun 2022 Posts: 7 Location: Turkey	slogra wrote oguzog wrote slogra wrote Perhaps the lcd tv does not like a 240p/15khz signal. While the ps2 ouputs 480i. Hmm. Any other system with 240p/15khz? Maybe i can try that too crosscheck? I have dreamcast, snes, megadrive, Yeah, snes and megadrive are also low res 240/15khz. Well, Snes with RGB cable works well :) I think something missing with my SMS RGB cable. I will check inside and let you know. Can someone also post pinout for correct RGB cable?

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