What is wrong with this picture?

[arcadeswede]

Hi guys!

I made this VGA to SCART (RGB) cable from this topic: http://forum.arcadecontrols.com/index.php?topic=77370.0
But when I connect it to my Panasonic TX-28CK1F, I get this picture:


As you can see the TV does recognize it to be RGB and the AV-selection (+12V on pin 8 ) did also work when I started the computer.

But what is this?
Not synced?
Is there another way to solder someting in the VGA or the SCART connector to get a correct image?

Also, I can't install the latest drivers. HIS ATI Radeon HD 5450 is the name of my graphicscard.
I getting an error saying that it doesn't recognize my display adapter when I have the VGA to SCART cable plugged in.
So Powerstrip won't even let me create a custom resolution.

I'm stuck!

Can someone help me?

Regards
Victor a.k.a Arcadeswede

[boardjunkie]

Improper H sync. Try changing the res to 320x240 and see if it syncs then. Certain resolutions won't sync right.

[arcadeswede]

Improper H sync. Try changing the res to 320x240 and see if it syncs then. Certain resolutions won't sync right.

The resolution is 640x480 and I can't go any lower.
What software should I use to be able to do that?

This guy says he had to combine h-sync and v-sync to be able to get it to work.
http://www.willcoxonline.com/mame/video/video.html

I tried that by just twisting a wire on port 13 and 14, but no luck.
Should I solder and try again or is that really my problem?

Is it possible, by looking in the service manual, if your TV requires composite sync or so?

[boardjunkie]

Oh yer just straight hooking the SVGA to SCART? You can't do that. You need software that forces the video card to put out a 15khz video signal. Soft 15kHz along with Quickres is a common setup.

[arcadeswede]

Oh yer just straight hooking the SVGA to SCART? You can't do that. You need software that forces the video card to put out a 15kHz video signal. Soft 15kHz along with Quickres is a common setup.

You can't?
Do I need to install the latest drivers for my graphics card? Cause when I do, all the colors in Windows are like 7-bit and I can't change to any resolution.
I CAN install the latest drivers with a PC monitor plugged in, so I'm guessing the error has to do something with the TV not being recognized.

BUT when I uninstall the drivers, I get a good image but the computer recognizes the graphics card as an standard VGA graphics card.

What should I do?

Is it important to have the latest drivers installed or will it just be enough with Soft 15 Khz and Quickres.
How does Soft 15 KHz works? I hit the "Install 15 kHz" but nothing happened, didn't see any new resolutions showing up in Windows.

If you could tell me what to do, I will probable figure out the rest.

[boardjunkie]

When you choose "install **kHz, nothing will happen until you restart. MAke sure you have quickres installed....yer gonna need it it when changing settings. I use 320*240 for normal operation and 640*480 to change settings in MAME or the frontend. At 320*240 you won't be able to see/access the settings.

[arcadeswede]

Alright!
Does my graphics card need to have the latest drivers installed to make this work?
Soft 15 kHz is allowing me to install 15, 25 or 32 kHz, so I guess my graphics card is compatible?

[boardjunkie]

Arcade monitors/tv's work on a 15khz horiz frequency, so don't try to install any other one. As long as you get the right video output, don't worry about updating drivers.

[arcadeswede]

Thanks!
I think I focused to much on the drivers rather then be able to get Soft 15 kHz to work.

I really appreciate you help. Thanks!

[apfelanni]

there are many ways to solder a working mame-scart cable. vga pin 13+14 twisted is a must in case ure card doesnt support composite sync > and < u enabled it . the tv should be ok , its a 50-60 hertz modell. if i remember correct there have been some issues with the radeon 5450 card. cant find it in the soft 15 compability list . if all ure attempts fail try a radeon 9200 , 9250 or 4350 . they will work 100 % . i m sure ure tv set accepts composite sync . no need to check the manual . the only tv i have encountered with separate sync is a metz with vga input via scart .  


software installation :

ati catalyst driverpack , soft 15 and switchres . one click on install soft 15 k and the driver will load on next boot. set pc to 640x480 60 hertz . not all catalyst driver are working as expected. sometimes older versions are doin fine .

[arcadeswede]

If all ure attempts fail try a radeon 9200 , 9250 or 4350 . they will work 100 % .

I think this is it!
My graphics card isn't compatible. Otherwise I wouldn't be having these problems.
It's a very easy method to get it to work, but I think the main problem is my ---smurfy--- graphics card.

I'm not that stupid with computers but this seems like the main problem is my card.
When I knew that soft 15 kHz only supported ATI Radeon cards I just bought the cheapest card out there.
I should have been looking at the cards being compatible with soft 15 kHz.

If I don't get it to work, I'll buy one of the cards that apfelanni mentioned above.

Thank you so much for all the help.

[arcadeswede]

Sorry to bring up an old post, but I finally got it to work!

I bought a new videocard (ATI Radeon 4670 HD) and installed ati catalyst drivers 9.2.
I then installed QuickRes and Soft 15 kHz.

I then got a picture but it was vertical scrolling.
So I took a screwdriver and places it on pin 13 and 14 in the VGA adapter.
Voila! Picture was perfect!

I couldn't activate composite sync with my videocard so I had to solder 13+14 together in the VGA-adapter.

Puh! I'm so glad I finally got it to work. Thanks guys!

[c0dehunter]

I also wanted to connect my modern PC (with a 100% compatible video card with Soft 15KHz) for game Emulation to a Sony PVM-2030 and I get this image:

http://www.flickr.com/photos/48901682@N02/7688576136/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688574312/#in/photostream/lightbox/

In reality, the above image should look like this:

http://www.flickr.com/photos/48901682@N02/7688572754/#in/photostream/lightbox/

But looks like this:

http://www.flickr.com/photos/48901682@N02/7688574312/#in/photostream/lightbox/

These are the images of the 15pin (VGA) solder work:
http://www.flickr.com/photos/48901682@N02/7688571564/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688570620/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688570024/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688569412/#in/photostream/lightbox/


These are the images of the 25pin (Sony PVM-2030) solder work:
http://www.flickr.com/photos/48901682@N02/7688568768/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688568128/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688566900/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688566216/#in/photostream/lightbox/

Both connectors together:
http://www.flickr.com/photos/48901682@N02/7688565432/#in/photostream/lightbox/
http://www.flickr.com/photos/48901682@N02/7688577078/#in/photostream/lightbox/

Diagram
http://www.flickr.com/photos/48901682@N02/7588180386/#in/photostream/lightbox/


Everything seems to be in order, but I am not sure why I get a distorted image. I even tried it with another computer (which has a compatible Soft 15Khz video card) and had the exact result, so it must be the wiring.

Any suggestions are greatly appreciated.

Thanks.
 

[arcadeswede]

Everything seems to be in order, but I am not sure why I get a distorted image. I even tried it with another computer (which has a compatible Soft 15Khz video card) and had the exact result, so it must be the wiring.

Any suggestions are greatly appreciated.

Thanks.

I can't answer how to wire that adapter. I'm used to VGA to SCART adapters.
BUT, the one thing I react on was that you've soldered the ground wire (shield) to a pin?
I think you should solder it to the adapters itself on both sides. To the adapters chassi, if you know what I mean.

I followed this link for my VGA-SCART adapter, maybe you can read it through and find something useful.
http://forum.arcadecontrols.com/index.php?topic=77370.0

[c0dehunter]

OK, I manage to have the person who originally made me the cable, also make the small circuit and implement it right in the 25pin housing, and guess what? It WORKS! It is a beauty to behold! (although compared to my 13" Commodore 1084S-D1, it would take time to adjust to its nice 20" size!)

Thank you all for your kind comments which made this project a success! I will post images shortly!

Thanks again.

[arcadeswede]

Thank you all for your kind comments which made this project a success! I will post images shortly!

Thanks again.

Sweet!
Btw, what frontend do you use? I use Hyperspin, but it doesn't look good at low resolutions and the menu doesn't feel solid.
I'm thinking about changing to Mala frontend and make a simple, kind of a DOS looking menu, so you can choose a game much quicker.