Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: maximumg on October 24, 2015, 06:24:39 pm

Title: Problem with arcade monitor and jpac
Post by: maximumg on October 24, 2015, 06:24:39 pm

Hi guys,

I have a problem with my arcade monitor and jpac setup and hope you can help me solve it.

My arcade cab has a goldstar monitor

I connect everything up and set my graphics card to 15khz with soft15khz.

When the PC turns on I get a green screen (pic1) and when it boots and gets into windows I can see the image on the background (still green) as you can see on pic 1. When removing the vga cable from jpac and connect it to my pc monitor I get pic 2

Jpac shows green lights constantly on

Can someone help me to resolve this?


Thanks

Title: Re: Problem with arcade monitor and jpac
Post by: menace on October 25, 2015, 08:25:51 am

Do you have a jamma board you can test the monitor on?  This would at least tell you if the problem is on the jpac side or the monitor side--I've never used soft15khz so I have no idea about settings etc...

Title: Re: Problem with arcade monitor and jpac
Post by: maximumg on October 25, 2015, 08:47:01 am

Yes when I connect the Jamma board the monitor is ok.

It's something to do either with jpac or the vga card.

Are there any settings to play with?  I just enabled soft15khz

Title: Re: Problem with arcade monitor and jpac
Post by: maximumg on October 25, 2015, 04:11:05 pm

Please see attached image for monitor model

Title: Re: Problem with arcade monitor and jpac
Post by: menace on October 25, 2015, 05:18:24 pm

Not ruling out jpac but I would be way more suspect of the soft15khz and videocard since it was never designed to run the monitor in question...

Whats the vid card?

Title: Re: Problem with arcade monitor and jpac
Post by: maximumg on October 25, 2015, 06:18:48 pm

This is my video card

https://www.asus.com/Graphics-Cards/EAH5570DI1GD3LP/ (https://www.asus.com/Graphics-Cards/EAH5570DI1GD3LP/)

Title: Re: Problem with arcade monitor and jpac
Post by: grantspain on October 25, 2015, 06:37:18 pm

tube is goldstar,monitor is not
remove the video input,do you still get a green screen-if so either the green cut off is too high or the green drive circuit has a fault

Title: Re: Problem with arcade monitor and jpac
Post by: maximumg on October 26, 2015, 07:28:21 am

When i remove the monitor i still get a green screen but when i connect it to my jamma neo geo board the screen is fine.

I thought maybe the wiring of my jamma harness is not the one needed by jpac but i checked jpac website and the wiring is as needed by jpac......

my jpac when connected shows a green led for selfcheck and sync ok but shows an orange led for sync in... is that normal?

Title: Re: Problem with arcade monitor and jpac
Post by: maximumg on October 29, 2015, 03:15:50 pm

Ok it seems that it was a software issue.
I tried with powerstrip and I can see my desktop but only the top half

Are there any other options to configure this in powerstrip? I used the 640x480 arcade resolution.

And the green color "mask" still remains.