Scart to S-Video Adapter?

[teerazzler]

I apologize if this isn't the correct place to ask this, but I can't find anywhere else for an answer. I have a Commodore 1702 monitor and I want to make it my main monitor for my 13 consoles. I have 2 gscarts and a gcomp daisy chained using a retrotink rgb2comp, and my consoles are a mix of scart and component sources. The out to a monitor from my switches is male to male scart. The Commodore 1702 has a S-Video/ S-VHS to RCA Y/C Luma Chroma Adapter to a S-Video Adapter Female to Female adapter.


Here is a list of my consoles -

NES - RGB modded - scart
SNES mini - RGB modded - scart
N64 - RGB modded - scart
Gamecube - Nintendo official component
Wii - Nintendo official component
Genesis model 1 - scart
Saturn - scart
Dreamcast - toro box scart
PC Engine - RGB modded - scart
Jaguar - scart
PS1 - scart
PS2 - component
OG Xbox - official component


Is it possible to have the scart end plug from my gscart go into the S-video end through some kind of adapter?

Do I need to somehow "downstep" the scart rgb signal to S-video?

Will my consoles even show a signal when plugged into the S-video? They are all RGB modded and the consoles using component should work the same when daisy chained going scart out, correct?


Thanks in advance for any help! I can't find any answers for this online.

[Fudoh]

To go from RGB to composite or s-video you need an encoder. You can find Scart to s-video encoders on Aliexpress.

Best thing you can do without an additional encoder is to get a black/white image from your component sources (the luma signal in both is the same) or a color composite picture from those of your scart source that use composite video for sync.

[teerazzler]

To go from RGB to composite or s-video you need an encoder. You can find Scart to s-video encoders on Aliexpress.

Best thing you can do without an additional encoder is to get a black/white image from your component sources (the luma signal in both is the same) or a color composite picture from those of your scart source that use composite video for sync.

Sweet, I hate to ask but can you please find a link to the exact encoder that you mentioned? I looked on Aliexpress and found a few, but want to make sure I buy the correct one that isn't cheaply made and won't degrade the signal too much.

How would I get a black white image from my component signals? Not sure what that means, I am a total noob with this kind of stuff. I have the component sources (listed in my original post) mixed with the scart sources (listed above as well) in my gcomp/gscart setup, so how would I isolate component out to the s-video end when I can only plug the scart end going from the out source of my gscart?

[Fudoh]

but can you please find a link to the exact encoder that you mentioned?

I don't feel like recommending a specific once, since I haven't used any myself. This said, the Axunworks RGB-2YC is certainly one of the best, but it's not cheap.

How would I get a black white image from my component signals? Not sure what that means, I am a total noob with this kind of stuff. I have the component sources (listed in my original post) mixed with the scart sources (listed above as well) in my gcomp/gscart setup, so how would I isolate component out to the s-video end when I can only plug the scart end going from the out source of my gscart?

if you use a Scart to RCA breakout adapter, then you just have to connect the GREEN RCA output to the luma input on the monitor.

[teerazzler]

but can you please find a link to the exact encoder that you mentioned?

I don't feel like recommending a specific once, since I haven't used any myself. This said, the Axunworks RGB-2YC is certainly one of the best, but it's not cheap.

How would I get a black white image from my component signals? Not sure what that means, I am a total noob with this kind of stuff. I have the component sources (listed in my original post) mixed with the scart sources (listed above as well) in my gcomp/gscart setup, so how would I isolate component out to the s-video end when I can only plug the scart end going from the out source of my gscart?

if you use a Scart to RCA breakout adapter, then you just have to connect the GREEN RCA output to the luma input on the monitor.

Ahh, I see. So you recommend the scart to RCA breakout adapter over getting the scart to s-video adapter? I assume you get the same results?

[orange808]

FWIW, I use a Timeharvest Supergun for SCART to svideo. It does a decent job.

[Fudoh]

Ahh, I see. So you recommend the scart to RCA breakout adapter over getting the scart to s-video adapter? I assume you get the same results?

it does not. The s-video one routes sync + red to the s-video port. That's of no use for you unless the scart port already carries a valid s-video signal. If you want to try this, then you need a breakout adapter that gives you access to the GREEN channel via RCA.

[teerazzler]

Ahh, I see. So you recommend the scart to RCA breakout adapter over getting the scart to s-video adapter? I assume you get the same results?

it does not. The s-video one routes sync + red to the s-video port. That's of no use for you unless the scart port already carries a valid s-video signal. If you want to try this, then you need a breakout adapter that gives you access to the GREEN channel via RCA.

Let's assume that I have absolutely no knowledge of anything that you're talking about, and assume that I do not understand which console natively outputs s-video and what does or does output s-video not after RGB mods. I have no idea what scart port already carries a valid s-video signal or not, and I have no clue about how the gscarts and gcomps work.

To simplify my question, and based off the information I gave about my consoles in my first post, what is the bottom line of what you think is the best solution here, and what exactly do I need to buy to do what I am attempting to do here?

[Guile]

Do you have another monitor that can do rgb or component? I also thought about using s-video but it seems like a waste to limit yourself to that if rgb is an option and you have all that equipment for rgb and component. It's fun to use on monitors like yours that have s-video only.

I use a vga2ntsc to get s-video from rgb sources but it looks like they're not in stock.

You can try something like this but I've never used one so I can't vouch for it personally.

https://www.timeharvest.net/products/sc ... fc-console

There are also hdmi to svideo converters but they might lower the image quality. If you have an OSSC you could convert the hdmi output to svideo.

[kitty666cats]

Check my recent posts in the MiSTER thread for some more choices (all far less expensive than the Axun one, though that one does look like it’s real cool!)

[Fudoh]

To simplify my question, and based off the information I gave about my consoles in my first post, what is the bottom line of what you think is the best solution here, and what exactly do I need to buy to do what I am attempting to do here?

with the equipment you already have on hand (which is clearly geared at high quality output from each system), I don't think the 1702 is a good match.

Yes, you can create a solution that gets you s-video from all your systems by adding a s-video encoder and a transcoder for the component sources, but this puts you at an expense, where you could start to consider just another monitor that natively displays your RGB and component sources.

And to answer your earlier question: while some consoles do output native s-video, you would need a completely new cabling for all of those. Not worth it.

PS: forgot one major caveat: if you're from Europe, then your 1702 is probably a PAL monitor. It likely still can display 60Hz, but in this case it probably can't decode NTSC, but PAL only. And while RGB and component have no restrictions in that regard, composite and s-video need a compatible color decoder in the monitor to give you color from those signals.

[teerazzler]

I have three PVMs and a BVM and 4 consumer sets that have component. After seeing what the Commodore 1702 looks like, it blows me away how great it looks. I prefer it over any other monitor I currently own, so I want to use it as my main monitor on my desk. This is a preference situation, not necessarily the "best" regarding a PVM or BVM etc.

The expense isn't a concern for me. What is the solution exactly so I can have all of my 13 consoles that are plugged into my gscarts and gcomp all go into the 1702? What cabling do I need and for what specific consoles? Also I am in the states, it is an NTSC 1702, not a PAL monitor.

Regarding the responses from Guile and kitty666cats, I want to try those but it sounds like those options aren't possible according to Fudoh.

[Fudoh]

The expense isn't a concern for me. What is the solution exactly so I can have all of my 13 consoles that are plugged into my gscarts and gcomp all go into the 1702? What cabling do I need and for what specific consoles?

as you wish

Doesn't the 1702 have pretty much the same tube as the 1084 ? That one would give you RGB directly compared to the s-video only 1702.

To streamline all your sources into an s-video feed, you need a COMP2RGB transcoder from Retrotink. You add this one between your gcompsw and your gscartsw - basically converting all your 15khz component sources into RGB. On the gscartsw's output you add a RGB-2YC from Axunworks ($95 + shipping directly on the Axunworks page*). From there you get your s-video signal which you route into your 1702 monitor.

What gscartsw revision do you own? The VGA2NTSC guile mentioned is an alternative, but I don't know any source for it right now and you would need another converter in between, which moves it closer to the RGB-2YC already (in terms of price).

* https://www.axunworks.com/product-p341706.html

The cheaper Scart to YUV converter ($38 from Aliexpress) might work, but the comment in the MiSTer thread here recently suggested that it's s-video output does not even work, so it would be an equivalent to Mike's RGB2COMP "only".

Oh and before you go "full out", I would try the 1702 with a single console of yours directly - maybe a Playstation ? You can get a s-video cable for those for little money on ebay or Amazon. Just to be sure that the picture is what you expect. After all the monitor is fine tuned to the y/c output of a C64.

[teerazzler]

I looked at the back of the 1084 and didn't see any scart or component input. I have a comp2rgb that is used to daisy chain the gscomp to the gscart. I am unsure of the gscart model, would it say it somewhere on the gscartsw? I will look into buying that RGB-2YC from Axunworks. Thank you for all the valuable information! I wouldn't have found that encoder without your help.

[kitty666cats]

That Harmonic Research branded component to Svid/composite that I shared in the MiSTER thread looks promising (unless you need PAL and not NTSC). Very cheap and could put that on the output of the gcomp.

For SCART RGB, meanwhile, you could use one of the units on here
https://www.js-technology.com/store/ind ... r=category
Has both PAL and NTSC versions & one variant has RGB loop-out.

Just need something like this for the Svid out:

[teerazzler]

That component to Svid/composite that I shared in the MiSTER thread looks promising (unless you need PAL and not NTSC). Very cheap and could put that on the output of the gcomp.

For RGB, could use one of the units on here
https://www.js-technology.com/store/ind ... r=category
Has both PAL and NTSC versions & one variant has RGB loop-out.

Just need something like this for the Svid out:

I think Fudoh was trying to say that this wouldn't work because it isn't converting the signal?

[kitty666cats]

Here’s another option:
https://www.antoniovillena.es/store/pro ... o-adapter/

Would just need something like this on the output of the gscartsw:
https://www.ebay.com/p/10013590746

…unless you need an audio breakout… in which case one of these (no power needed for this adapter if the gscartsw sync stripper is on) could work:
https://www.retroupgrades.co.uk/product ... a-adapter/

[kitty666cats]

I think Fudoh was trying to say that this wouldn't work because it isn't converting the signal?

Read my post again and click the links. That adapter would go on the output of one of the JS Technology converters *only*, not anywhere on the gscartsw or anything else I linked aside from the JS units.

[Fudoh]

I looked at the back of the 1084 and didn't see any scart or component input.

European 1084 units have scart. US units have a DIN RGB input. There are adapter cables available to connect common scart sources.

I am unsure of the gscart model, would it say it somewhere on the gscartsw?

first gscartsw version had one scart output and one vga-style RGB output. If you had one of those, the VGA2NTSC dongle mentioned earlier might make sense for you. I've only heard good things about the RGB-2YC though. So if it's worth the money for you, give it a try.

[kitty666cats]

Sometimes the 1084’s out here have a DB9 instead of DIN, you never know what you’re gonna get on the back of all these CM8833-II variations!

Anyhoo, for the Svid to 2RCA for the 1702, I’d peek around Amazon and read the reviews of some of said cables, you’re bound to run into some where people mention Commodore monitors

[twotone8]

I had my eye on a S-Video only CRT a while back and was considering one of these to go along with my GScartSW
Would it do the trick? (they come back for sale every so often)

https://www.ebay.com/itm/174578156353

[kitty666cats]

Yep, that’s exactly what you need. Seller makes great quality stuff, you’ll be pleased

[azmun]

I too have been on a long quest to find the best device which converts (or is it transcodes?) RGB (via scart) signal to composite and/or s-video. I've narrowed down my search to three choices:

a)Keene Electronics
https://www.amazon.co.uk/KEENE-RGB-S-VI ... B00131CBDE

b)JS Technology (requires adapter)
https://www.js-technology.com/store/ind ... er=product

c)Wakabavideo
https://www.ebay.com/itm/174578156353

These all require some power supply and I wish we could know more details about the inside (or inner workings) and how they compare with one another. I doubt they are all built the same way and it'd be interesting to know if they yield similar or significantly different results.

edit:

I'm adding another converter to this list:

d)AxunWorks RGB-YC
https://www.axunworks.com/product-p341706.html
This one has only four reviews and all seem to be raving about the product.