Author Topic: Pc plugged into arcade monitor cannot get alligned horizontally (Read 3658 times)

Antwan2000arp · « **on:** March 23, 2016, 01:10:45 am »

I recently purchased a virtua fighter three cabinet from a local arcade/amusement park. I have a PC running windows seven inside it and have the monitor wired to a VGA cable. I have the picture aligned with the sides and top and bottom of the screen but now image is split into two. What would be the left side of the screen is pushed over to the right and the right side of the screen is on the left with a black line between the two. One of the adjustments on the monitor allows you to shift this but the shift is not great enough to correct the picture. Any ideas at all would be greatly appreciated.

grantspain · « **Reply #1 on:** March 23, 2016, 04:41:20 am »

what monitor model/make is it?
i think vf3 was a naomi game therefore max res of the screen would be 640x480
win 7 boots at 800 x 600 and can damage some chassis,all depends on the model of monitor though

P.H.U. · « **Reply #2 on:** March 23, 2016, 02:12:50 pm »

I had this problem too. I fixed it with a replacement remote board from arcadecup.com for $18.

Antwan2000arp · « **Reply #3 on:** March 23, 2016, 03:48:52 pm »

On the chassis the model seems to be KTM-F. Now all of the sudden when I turned it on the picture was all out of wack. Sort of wavy and you couldnt really make out what was on the screen. I know that the computer is not outputting 15 kHz. Could that be part of the problem? Also is there anyway that I can test to see if the problem is the external controller with all the potentiometers. I don't really want to have to pay for one if its not needed. Lastly I am outputting at a very small resolution it's about half of 800x600. Thanks so much for the responses

grantspain · « **Reply #4 on:** March 23, 2016, 04:09:59 pm »

15khz chassis,lucky its not dead

so how have you wired this cga chassis to your video,have you hacked a vga cable?

Antwan2000arp · « **Reply #5 on:** March 23, 2016, 04:20:25 pm »

Yeah Cut a VGA cable in half and used a multimeter to track the Aires to the pins so I would know which wires to use. Then J just wire nutted them together. Ghetto but it works

grantspain · « **Reply #6 on:** March 23, 2016, 04:53:51 pm »

well its not working that well as you either have a video ground or sync problem as well as resolution issue

Antwan2000arp · « **Reply #7 on:** March 24, 2016, 12:59:04 am »

So it could be a loose sync on the ground cable? What would the best resolution to pick be, also should I change the mode of the video so that the refresh rate and the color type changes? Next, I recently purchased a VGA to arcade adapter board, could that fix some of my issues?

Antwan2000arp · « **Reply #8 on:** March 24, 2016, 12:59:50 am »

Or* the ground cable

behrmr · « **Reply #9 on:** March 24, 2016, 11:10:08 am »

Quote from: Antwan2000arp on March 24, 2016, 12:59:04 am

So it could be a loose sync on the ground cable? What would the best resolution to pick be, also should I change the mode of the video so that the refresh rate and the color type changes? Next, I recently purchased a VGA to arcade adapter board, could that fix some of my issues?

If you're not outputting 15khz it's not going to work. Period. In fact, this looks like what you would get if the refresh rate is out of wrong. Your adapter board is needed in this scenario to convert from your PC -> VGA -> CGA. Or you need to find a video card for your PC that can be tweaked to output the proper resolution.

Running your monitor like you have it now has the potential to damage it.

Antwan2000arp · « **Reply #10 on:** March 24, 2016, 11:21:00 am »

Ok. Then I'll just wait until my converter comes in the mail and hopefully that will resolve my issues!

dmckean · « **Reply #11 on:** March 24, 2016, 12:06:18 pm »

Wasn't Virtua Fighter a medium resolution game? It might need a 25khz (EGA) signal.

Antwan2000arp · « **Reply #12 on:** March 25, 2016, 11:38:41 pm »

So I got the converter and it fixes the wavy messed up picture but it still is split up weird. Where the picture is two pieces.

grantspain · « **Reply #13 on:** March 26, 2016, 04:00:06 am »

photo of a screen shot now please

Antwan2000arp · « **Reply #14 on:** March 28, 2016, 12:18:22 am »

Running at 640x480

grantspain · « **Reply #15 on:** March 28, 2016, 08:45:23 am »

can you tell us the monitor model number,take a photo if unsure

Antwan2000arp · « **Reply #16 on:** March 28, 2016, 01:49:48 pm »

grantspain · « **Reply #17 on:** March 28, 2016, 05:49:52 pm »

that is a crt number and has no relation to the actual model/make of the monitor
post a photo of the chassis

Antwan2000arp · « **Reply #18 on:** March 28, 2016, 11:50:25 pm »

Oh ok, good to know. Anyway there is a picture of that above

dmckean · « **Reply #19 on:** March 28, 2016, 11:51:54 pm »

I don't see the photo of the chassis.

Antwan2000arp · « **Reply #20 on:** March 29, 2016, 12:04:48 am »

Sorry I thought I did. The model is KTM-F

grantspain · « **Reply #21 on:** March 29, 2016, 02:23:27 am »

there is a 25k version of ktm-f chassis,did you say you had vf3 running on this cab originally?-if so then that is a 25k chassis
you would need to set the res at 25k on the pc graphic properties

Antwan2000arp · « **Reply #22 on:** March 29, 2016, 09:54:34 am »

Yes it was originally running virtua fighter 3. So do you think running it at 25 kHz would fix my issues?

grantspain · « **Reply #23 on:** March 29, 2016, 11:38:06 am »

yes it should work at 25khz


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