Awesome video Bob! This is super helpful!.. I know you'd never recommend to buy cheap scart cables to begin with, but it would be really awesome to see a video breaking down all the things those cables are not doing, and just maybe is there anything one can do to improve them or make them "proper". I myself have invested about half/half in good and bad one's. I've had some decent cheap one's (at least working) and I've also bought some complete crap one's , specifically a couple of og xbox one's off of aliexpress, and it would be pretty cool if I could diagnose what makes these one's crap lol.
Hi Bob. Thanks for your valuable information! I used this video and the article from your site to convert a crappy eBay Genesis 2 cable, that was using composite video as sync, to c-sync. Thumbs up for the great job you are providing to the retro community!
Is there a trustworthy reference out there for the required components in the other RGB lines of these consoles? For example for the Genesis, every diagram that I find on Google uses different resistors or some use capacitors while others do not. Furthermore, all have 75 ohm resistors on csync as opposed to 470 ohm. It is all a complete zoo! Thanks.
It also appears this cable has 75ohm resistors on each of the RGB lines, with no capacitors. Looks like RetroGamingCables newer PCB SCART cables include resistors AND capacitors on each RGB line.....would it be worth adding them? There also doesn't seem to be a definitive list of components required on the RGB lines for consoles, it'd be fantastic if your Csync guide included that info too. Although I completely see why you wouldn't as it's probably a tonne of research and testing which would take a lot of time. Great vid as always Bob!
Eric Hurley my old retro gaming cable for the gen 1 also used the composite for sync, so I had to move it to the sync pin before adding the resistor and cap
Great Viideo!!, Rob dude, can you help us with a video about how to measure and possibe fixes, if a SCART SWITCHER is the problem? I have some nice swutchers that worked amazing with my Dreamcast and PS1 but they lose the RGB signal with the SNES; Neo Geo and Saturn. I was figuring maybe the switchers can be fixed adding some capacitors or soemthing like that, at least for expecific inputs.
RetroRGB Better to post twice than have two separate videos or not update at all. Ya live and learn. This is a much more comprehensive video, good work both times :)
I got an AV scart, instead a RGB one, and only realized that when it arrived my home. There is a way to change it from av to rgb? Changing resistors or capacitors? Thanks!
I have a knockoff PS1/2/3 SCART RGB cable that is being detected only as composite unless plugged into a SCART switcher and other console on the same switcher is turned on. Then it TV instantly recognizes it as RGB. I have no idea how is it possible and what is missing. Tested with ps1,2,3 and got same behavior. It has 220uf caps on R,G,B lines, tried desoldering them and got no change in behavior.
Found the issue by exploring lots of forums. Resistor between pins 8 and 16 is missing. Visibly removed even though I have 2 cables like this pulled out of the blister packs and both have this issue.
Cesar Montes only if you use a flash eprom with 3.3v and resistor or diodes to step down the 5v. Still is would be really rare if something happened to the console, even with the 3.3 flashcarts. For examples repros with 27c eprom or 29f are ok because these are 5v tolerant, I use 29l which is 3.3 and use a regulator to step down or diodes and never had a problem.
Great video, thanks for the info. One doubt, I recently made a mod on my pc core core 2 for rgb, for that I used a kit that is sold on ebay. In it there is a board that receives RGB 5v and ground, but the sync signal goes straight from the console board to the cable connector on the console. My doubt is, do I need to add a 220/16 cap and a resistor in the sync line in that case ?? I did not add anything to the cable scart, I imagined that the board inside the console was already all that was needed the kit is www.ebay.com/itm/PC-Engine-white-console-RGB-Amp-PCB-THS7314-with-Accessories-Kit-Brand-new-/122581926582?hash=item1c8a73c2b6:g:ByoAAOSwaB5XtMcf
I am in kind of the same spot - bought a modded PAL SNES that has c-sync restored, but unfortunately even the seller cannot tell me whether it is TTL or 75 Ohm. So any tips on how to measure whether a _console_ outputs TTL or 75 Ohm c-sync would be greatly appreciated (preferrably without having to use an oscilloscope).
You are using retro gaming cables? if yes i think the cable has everithing you need, but in my case, a made the cable, to use whit my pc engine, but i think the pc engine outputs sync on compositve not csync
Awesome video Bob! This is super helpful!.. I know you'd never recommend to buy cheap scart cables to begin with, but it would be really awesome to see a video breaking down all the things those cables are not doing, and just maybe is there anything one can do to improve them or make them "proper". I myself have invested about half/half in good and bad one's. I've had some decent cheap one's (at least working) and I've also bought some complete crap one's , specifically a couple of og xbox one's off of aliexpress, and it would be pretty cool if I could diagnose what makes these one's crap lol.
Hi Bob. Thanks for your valuable information!
I used this video and the article from your site to convert a crappy eBay Genesis 2 cable, that was using composite video as sync, to c-sync. Thumbs up for the great job you are providing to the retro community!
Great video! I was able to figure out how to open one of these suckers up to fix a disconnected Left Audio. thx RetroRGB!
Great video! A must watch for those buying SCART cables.
I liked the ending 😂
Is there a trustworthy reference out there for the required components in the other RGB lines of these consoles? For example for the Genesis, every diagram that I find on Google uses different resistors or some use capacitors while others do not. Furthermore, all have 75 ohm resistors on csync as opposed to 470 ohm. It is all a complete zoo! Thanks.
Just checked an old RetroGamingCables Genesis 1 cable and it has the same resistance as yours, about 75ohm. I better get changing that resistor!
It also appears this cable has 75ohm resistors on each of the RGB lines, with no capacitors. Looks like RetroGamingCables newer PCB SCART cables include resistors AND capacitors on each RGB line.....would it be worth adding them?
There also doesn't seem to be a definitive list of components required on the RGB lines for consoles, it'd be fantastic if your Csync guide included that info too. Although I completely see why you wouldn't as it's probably a tonne of research and testing which would take a lot of time. Great vid as always Bob!
Eric Hurley my old retro gaming cable for the gen 1 also used the composite for sync, so I had to move it to the sync pin before adding the resistor and cap
Douglie007 cheers for the heads up! I'll double check that too. There seems to be conflicting genesis 1 pinout diagrams online. Which one did you use?
Eric Hurley I used this one www.gamesx.com/avpinouts/genesisav.htm
Great Viideo!!, Rob dude, can you help us with a video about how to measure and possibe fixes, if a SCART SWITCHER is the problem? I have some nice swutchers that worked amazing with my Dreamcast and PS1 but they lose the RGB signal with the SNES; Neo Geo and Saturn. I was figuring maybe the switchers can be fixed adding some capacitors or soemthing like that, at least for expecific inputs.
Great insight ! Have you ever tried to make a scart to vga cable ?
Great update video Bob
Thank you! Sorry for posting twice ;/
RetroRGB Better to post twice than have two separate videos or not update at all. Ya live and learn. This is a much more comprehensive video, good work both times :)
Good Work.
I'm building PS2 RGB Cable and i need 75 ohm resistor, but can anyone tell me what power (W) does it need to be, 1/4 or other? Thanks!
Another Great video! I have whats pictured @ 11:13 on my genesis 2 SCART cable measuring .461 k ohm, is that ok to have?
Yup, that works!
I got an AV scart, instead a RGB one, and only realized that when it arrived my home.
There is a way to change it from av to rgb? Changing resistors or capacitors? Thanks!
You'd have to re-wire the entire thing. It would be much easier to just buy a new cable.
Actually, this is not an option, because it takes months to arrive here.
I have a knockoff PS1/2/3 SCART RGB cable that is being detected only as composite unless plugged into a SCART switcher and other console on the same switcher is turned on. Then it TV instantly recognizes it as RGB. I have no idea how is it possible and what is missing. Tested with ps1,2,3 and got same behavior. It has 220uf caps on R,G,B lines, tried desoldering them and got no change in behavior.
Found the issue by exploring lots of forums. Resistor between pins 8 and 16 is missing. Visibly removed even though I have 2 cables like this pulled out of the blister packs and both have this issue.
On a similar subject, is there any way that repro carts be dangerous to consoles? And how would we check? Maybe another how to video? =)
Cesar Montes only if you use a flash eprom with 3.3v and resistor or diodes to step down the 5v.
Still is would be really rare if something happened to the console, even with the 3.3 flashcarts.
For examples repros with 27c eprom or 29f are ok because these are 5v tolerant, I use 29l which is 3.3 and use a regulator to step down or diodes and never had a problem.
Great video, thanks for the info.
One doubt, I recently made a mod on my pc core core 2 for rgb, for that I used a kit that is sold on ebay. In it there is a board that receives RGB 5v and ground, but the sync signal goes straight from the console board to the cable connector on the console. My doubt is, do I need to add a 220/16 cap and a resistor in the sync line in that case ??
I did not add anything to the cable scart, I imagined that the board inside the console was already all that was needed
the kit is
www.ebay.com/itm/PC-Engine-white-console-RGB-Amp-PCB-THS7314-with-Accessories-Kit-Brand-new-/122581926582?hash=item1c8a73c2b6:g:ByoAAOSwaB5XtMcf
I am in kind of the same spot - bought a modded PAL SNES that has c-sync restored, but unfortunately even the seller cannot tell me whether it is TTL or 75 Ohm.
So any tips on how to measure whether a _console_ outputs TTL or 75 Ohm c-sync would be greatly appreciated (preferrably without having to use an oscilloscope).
You are using retro gaming cables? if yes i think the cable has everithing you need, but in my case, a made the cable, to use whit my pc engine, but i think the pc engine outputs sync on compositve not csync
déjà vu XD