Xbox 360 SCART to RGB Arcade Monitor Green video

[infariot25]

I am at my wits end on this one.  I used the Xbox 360 pinouts found here:
http://dwl.xbox-scene.com/tutorial/Xbox_360-HandC-V1_4.pdf

I took a MS component video cable, linked the pins indicated in the chart, connected to my arcade monitor and the video is all green and distorted.  It won't even display on my D9200 but will show a green image on my super neo 29" (nanao??)

I have verified the pinouts in the pdf on this image as well as many other sources. 

Does anyone have any suggestions?

Thank you

[northerngames]

if your D9200 can do vga 31K then just use a official xbox 360 vga cable

if your using a 15K or 25K arcade monitor I am not sure how you get a low res display out of a high res cable as component does not do 15K or 25K

[infariot25]

Using the VGA cable for the D9200 works perfectly.  I need 15khz for the Neo candy cabinet.  Thank you though...

Judging from this thread:
http://nfggames.com/forum2/index.php?topic=3391
(see posts by undamned)

It's my xbox 360(manuf. 2006).  I tried another(manuf. Nov 2007) and now I get a picture but there is disturbance very similar to the disturbance shown here:
http://forum.arcadecontrols.com/index.php?topic=5869.0

I will try a LM1881 circuit to see if the composite video is causing the sync trouble.

I tried the cable again on the D9200 with the newer Xbox 360 and still no signal/out of range... this makes me point even more toward the composite sync issue.
Thanks again for your help.

[infariot25]

I did some more searching and came up with this thread:
http://forum.arcadecontrols.com/index.php?topic=8665.0

which was posted by ME 6 years ago with the same issue on the D9200 with Xbox 1.

Holy crap I'm getting old.

anyway this makes me lean more toward the LM1881 sync separator.    I will try asap

[northerngames]

a long shot but it may also be the console setting themselve's as component is a higher res then a low 15K and the video settings in the console dash may be off or set to high.

[infariot25]

I checked those settings as well and it does  not  allow you to change the resolution when in SCART/RGB mode.

[infariot25]

Sorry for replying to this OLD post but I finally got it working today! I bought a new Xbox 360 from Target for $130 and it came with a $50 gift card too (they must be preparing for the NEW Xbox 360). Anyway I started working on this again because I wanted to get Super Street Fighter IV working on my candy cabinet. Sure enough, the LM1881N circuit made the picture perfect (as I guessed over 1 year ago).
 
If anyone is looking to do this themselves, here are some pointers:

- Use the official Xbox 360 component cable
- Modify the cable to enable "SCART RGB mode" according to this PDF (see page 7): http://dwl.xbox-scene.com/tutorial/Xbox_360-HandC-V1_4.pdf
- The wires on the inside of the component video cable are pretty easy to figure out
-- Thick red wire -> red video
-- Thick green wire -> green video
-- Thick blue wire -> blue video
-- Yellow wire -> composite video / sync
-- I used the shielding wire for the ground and it seems to work fine

- Create the LM1881 circuit according to the diagram on Gamesx.com: http://www.gamesx.com/misctech/lm1881.htm
Note: I'm no resistor color code expert but according to the color code of the resistors I used (Blue(6)-Grey( 8 )-Orange(x1000)-Gold), they were 68K-ohm and not 680k-ohm which the circuit diagram calls for. This seems to work fine for me.
- I grabbed +5v for the LM1881 circuit from USB but you may be able to grab it from the video connector.

More notes:
1. I used an old 2006 Xbox 360 when I initially created this thread and it did not work. I now have it working on a US NTSC Xbox 360 manufactured 2010-01-28 (and a 2007 model) so I suppose only the oldest models can not do RGB right. See here for more evidence of that: http://nfggames.com/forum2/index.php?topic=3391
2. In the Xbox 360 dashboard's display settings, it will say SCART video (which I didn't expect since I'm in the US). You may be able to use this information if you're troubleshooting your homemade cable.

I am so thrilled now and I have attached a picture which is not really going to help anyone; it's just proof that it works. I hope this helps someone!

[apfelanni]

hm .. i was under the impression that any xbox from us , euro or asia would work fine with a common 5 euro rgb scart cable .. i never experienced any difficulties with my japanese considering the exchange of equippment taken from euro 360 .  maybe i should test it with a sync separator on one of my cabs . should have a rgb cable dumped somewhere coz all 36o are plugged in via hdmi or vga . 2 say the truth , i dont see the benefit of 15 k output on a next gen console . most games are made for vga or 7xx p mode.

[infariot25]

I've never really had any problems with SCART cables on US consoles. I just figured with all the region locking they do, next-gen consoles that use the 'Dreamcast' video select method would not allow SCART to be used. For the record, I was able to use the Ultimarc video adapters on my USA PS2 and USA PS3 without issue.

2 say the truth , i dont see the benefit of 15 k output on a next gen console . most games are made for vga or 7xx p mode.

The benefit of 15K on next-gen consoles is that they can be played on older arcade cabinets.

[apfelanni]

" The benefit of 15K on next-gen consoles is that they can be played on older arcade cabinets. "

but there are only maybe 1-2 % of all games worth playing in lowres. it needs a lot of enthusiasm to believe downscaled shooters look better than in vga + . i know some guys spending lots of money for the " real " lowres feeling with theire 360 . it may come closer to the original pcb but its not looking any better , sometimes worse than directly plugged to a high res screen via vga or hdmi. i am a huge fan of playing lowres ( mvs for ex ) but not with nextgen consoles .

[infariot25]

it may come closer to the original pcb but its not looking any better , sometimes worse than directly plugged to a high res screen via vga or hdmi

I think you're right: I doubt the Xbox 360 does the proper resolutions anyway...maybe it's scaled to 640x480 and then interlaced. See the following site where someone compared the Xbox 360's port to a real Ketsui PCB: http://arcadefever.blogspot.com/2010/05/ketsui-pcb-vs-xb360-port.html

HD arcade cabinets won't be cheap enough for me anytime soon so I'm going to continue using my Xbox 360 in 15K mode. 

[DumpsterMax]

Sorry to bump an older topic but the LM1881 doesn't help amplify the video in anyway does it?

I hooked up my xbox 360 (manufactured in 2010) to my cabinet via a jamma fingerboard. I used a microsoft brand video cable with all the teeth, and I followed your directions to short pins 22 and 24 and pins 26 and 28.

The picture actually looks fine without an LM1881 (clear steady image), but it's a bit darker than I'd like it to be. I've tried adjusting the settings on my monitor (27" thompson), but I can't get anything that looks as vibrant as the picture you attached.

[thecig]

Well I have an ultimarc video amp that i hooked my 360 upto and it didn't work at all!
So then i just twisted the cables together straight from xbox 360 to arcade monitor and its green like the above post. My 360 is at least 3 - 4 years old, so i guess it needs that special circuit.

I used a vga breakout cable (that i made for my mame PC - worked fine for that) but it didn't seem to work even tho i just wired the R G B ground and Sync the same way. Maybe the amp just amplified the composite video so much that the monitor couldn't find the sync? Would that be possible? I'm gonna give that LM1881 circuit a go to see if it fixes the problem.

Ideas?

PS: my image was very dark without the amp. I'd compare the 2 if i could, but i don't get a picture with the amp.

[emphatic]

The sync needs that circuit, yes. I can recommend you get one of these instead for ALL your scart->JAMMA needs: http://etim.net.au/scart2arcV20/scart2arc2.htm

[thecig]

The sync needs that circuit, yes. I can recommend you get one of these instead for ALL your scart->JAMMA needs: http://etim.net.au/scart2arcV20/scart2arc2.htm

Cheers for the reply emphatic, but i don't actually have the jamma harness in my cab anymore.

My plan is to have the output from the 360 to a vga connector (already have a fly lead that i was using for the PC before i got the ultimarc video amp).
Connect that to a KVM switch as well as 2 hacked 360 controllers.
Also plug my PC into the KVM switch using VGA.

Would I need the amplifier for both? ie: have the video amp between the KVM switch and monitor? It seem logical to me that i need to amplify both the 360 and PC signals upto the required 4v (or is it 5v?).

Thoughts?

If i haven't really explained my situation well enough I could probably do a crappy sketch in MSpaint.

Cheers.

[emphatic]

Sorry, I have no experience with the setup you're describing. Would it be possible to bypass the amplifier should it give you an over-saturated signal? I remember reading somewhere that the 360's output is a powerful one. 

I have a manual switch in one of my cabinets myself, and the switch itself doesn't affect the signal strength at all. But those signals are 480p VGA...

[thecig]

Sorry, I have no experience with the setup you're describing. Would it be possible to bypass the amplifier should it give you an over-saturated signal? I remember reading somewhere that the 360's output is a powerful one. 

I have a manual switch in one of my cabinets myself, and the switch itself doesn't affect the signal strength at all. But those signals are 480p VGA...

I reckon thats why I couldn't see anything when i pubt the 360 thru the amp. Thanks for clearing that up.