I like the design of scart, sync is always on the same pin. No matter if you are using composite, s video or rgb. Everything splits it, to extract the h-sync & v-sync.
Which pin? It's not on Wikipedia's pinout. I think it's assumed that SCART appliances will take sync out of composite video. I've never heard of amplifying sync, it's always a ~0.3V digital signal. I'm positive you don't need to.
It's pins 19 and 17 according to this site. I think (and I could be wrong about this) that pins 19 and 17 are used for composite video normally, but when using an RGB source they're used for sync instead. Or maybe all SCART appliances output composite video and, like you said, the monitor just gets the sync from that. Either way, pins 19 and 17 are used for RGB sync.
Yeah, there isn't a separate sync signal only composite video, you'll need the sync splitter if the monitor can't handle composite video. At least give it a try, it may work out. I now know what you meant by "amplifier" too, that page is talking about connecting RGBS to a VGA monitor which needs TTL level (5V) signals.
La-li-lu-le-lo, what model PVM do you have? If it helps any, mine is a 19" model that has BNC connectors and the 25pin port as well. It takes Composite Video as Sync with no modification. So for Sync I just wire the SCART connector's composite video to the Sync on the monitor. So there's a chance your monitor will not need that LM chip. For the SCART pinout I think I looked at Wikipedia. It can be confusing as hell though. But here's a post I made when I started working on my RGB monitor stuff: http://www.assemblergames.com/forums/showthread.php?t=14471
Mine is a 12" PVM-1271Q, and it only accepts BNC. I have a feeling that it'll take composite video as sync because when I plugged in one of the connectors from my PS2 component cable it accepted that as sync. Another thing: I noticed today that it has some pretty bad scanlines. I'm not sure if it did that to begin with or if it just started. Is there any way to fix that?
http://www.gamesx.com This site has all the information you need to get it working. There is a whole forum and a wiki devoted to using RGB monitors with game consoles.
What do you mean bad scanlines? I guess you might be able to find a 3rd party Component Video Cable that has a GunCon2 Composite Video passthrough and then you just need Phono to BNC adapters. You'd connect the Red Green and Blue which should connect to the same pins on the AV port as RGB and then use Composite video as sync from the guncon2 connection. It makes sense to me atleast.
MottZilla: By scanlines I mean that there are blocks of increased brightness that scroll across the screen and bend the image slightly. I can take some pictures if you want once I get back to it, but I'm away right now. About the PS2 cable: that sounds like a good idea. Do you know where I could get a cable like that?
Do you just need a PS2 cable with the Guncon2 video in? I have a bunch of Playstation third party SCART RGB cables with the GCon2 plug. If those would do for you paypal me 7 Euros or so for the shipping and I'll send you one from Germany, unless you can find one locally.
I bought one of these awhile back: http://cgi.ebay.com/PS2-XBOX-HD-TV-...ryZ21187QQssPageNameZWDVWQQrdZ1QQcmdZViewItem I have not tested it on my PVM because I don't have Phono to BNC adapters for 4 of them. I only own one and that was for the Composite Input and now I can't get it off, so if you use a Radioshack female BNC to female Phono adapter beware you may not be able to remove it. Maybe test it on the Composite BNC connector first. But this should work. And it would work for Xbox as well. The GameCube end isn't actually Component though.
Rise from your grave... I have an issue w/ my Arcade monitor. I have a contraption to which I input a 21-pin RGB cable, and output to DSUB (monitors native input). For my Sigma Supergun and AVGA card, it works great. Not such a stretch as they don't really use sync. For my Saturn & DC (using RGB Hopsice cables) it works great. For my PS2, it doesn't. The device has a toggle switch that will strip the sync (necessary to play Sega or DC stuff). I've not tried any other devices, but will. The results are a scattered picture... looks like the other console systems when the syhttp://nkmm.org/yagura/rgb/#05-01-01nc is not stripped. The pinout for the device was taken from this. It looks to me that the PS2's pinout is this. Other than left & right audio being switched (WTF?), which I'm not too worried about, what else could it be? Sync comes in on pin 9 when I've got it on. +5 (on the device) is pin 16. The PS2 cable has +5 on pin 11 & 16 (shorted together via a small wire). Note that rewiring the device will be tricky due to the encasing it's in (A Fisher Price wale toy). I'll just be modding the cable itself... hopefully a PS2 stock one.
So you set the PS2 to RGB in the BIOS menu right? Next, what do you mean your Supergun and AVGA don't really use sync? I don't see how that makes any sense. The PS2 is almost the same as a JAMMA board in that it outputs Red, Green, Blue and Composite Video. You have to strip the Composite Sync from that if your monitor won't sync without stripping. Also, I think the PS2 can be set to do Sync on Green I think it's called.
Arcade monitors don't handle synch... hence, the AVGA and Supergun don't send them. This is why I've always had to use an XRGB2 to play console games on my arcade monitor. This is what I've been told a number of times, anyway.
Sync is necessary for all video, whether it's on it's own wire or mixed into another and there's no way to reconstruct it from just the RGB components. I'm pretty sure PS2 outputs strictly sync-on-green RGB (or component which also has sync-on-green/luminance). Don't connect the +5Vs together! It isn't necessary, and it creates a short between the two slightly different voltage levels, not a good idea even if there are protection diodes. Only connect R,G,B,SYNC (or composite/luminance output to SYNC input) and GND on your RGB cables.
It's worth checking that the ground pins are connected up, RGB21Pin sockets have grounds for the Sync, Audio, each of the RGB lines and a frame ground. A unsynced picture is normally due to a lack of ground. I've remebered that the Saturn and DC do output Composite Sync where as the Playstation does not, it outputs Composite Video which most TVs can strip the Sync from. So you might need to use a LM1881 to strip the Sync from the Composite Sync video signal. The Playstation only does sync on green for the VGA cable on the PS2 for the linux kit and the PS3 (which can be used for everything...). A number of arcade monitors do handle H/V sync as well as the standard C sync (the Hantarex monitors do for example), although not all don't.
I'm not connecting anything -- this is an official Sony RGB cable. They are already shorted to each other. Okay -- so what does that mean exactly in this scenario? I don't quite know the difference in the two. Note that this works when I run it through an XRGB2. I don't know the inner-workings of the XRGB2 though, unfortunately. I'd have to double-check, but I recall not all of them being connected. That's what the toggle allegedly does. Or maybe it just turns C-Sync on and off from the signal in general. Checking the PS2 pinout again, it says that lead 9 is Composite Sync, but "Composite Video is sent from the machine". I believe this means that composite video is sent from the unit, but Composite Sync is stripped out of it by the cable. I don't recall an LM1881 in the cable though, so not sure how that works. If you look at the AV-Multi pinout (just below it in the link I sent), Pin 6 sends Composite Video. This diagram makes it sound as if it doesn't there's no conversion.
Pin 9 is composite video and not composite sync, they are not the same signal but as most TVs will detect Composite Video it will automatically strip the sync from it. It sounds like your device is not doing this as the Supergun, DC and Saturn are working fine (the DC and Saturn do have a seperate composite sync). You can build a simple sync stripper with a LM1881, 2 0.1uf caps (non electrolytic) and a 680K ohm resistor. There is a good electronic shop in Akihabara Click here for a nice picture of the shop and here for the location Here is the circuit diagram as from the data sheet. You only need... Pin 1 - Composite Sync (to cable) Pin 2 - Composite Video (from cable, any ground, esp 21) Pin 4 - Ground (from cable) Pin 6 - Reference, solder cap over resistor, then resistor to pin 6 and the other end to pin 4 Pin 8 - +5V (from pin 11 of cable)
+5V from the Playstation is generally meant for a RF modulator, any other cables shouldn't need to connect it. The XRGB2 is automatically detecting/splitting the sync-on-green for you or it's taking it from composite video. Most things have a common ground so I wouldn't worry about it too much. Maybe bypasses the LM1881 or selects it's output.
