Build Your Own Arcade Controls Forum

Software Support => GroovyMAME => Topic started by: bernieberg on June 24, 2019, 05:22:27 pm

Title: Groovy Arcade 25k7191 sync issue
Post by: bernieberg on June 24, 2019, 05:22:27 pm

Hello,
 
I currently have this setup:

Groovy Arcade iso loaded on USB stick
AMD HD 6350 (with the splitter to two VGA outputs)
jPac
Jamma Arcade harness
Wells Gardner 25k7191 (with the Zenith K7000A chasis)

It boots fine and will display on the LCD screen.  The arcade monitor displays the picture somewhat, but it doesn't seem synced. I have chosen the 25k7191 from the monitor list, and changed the dotclockmin to 8 per another thread I read about the 25k7191.  But it doesn't seem to help.  Is there something else I should try?  When I try different settings nothing seems to change, do I need to save and reboot somehow first? 

Here is a short video of the issue:

https://i.imgur.com/4Q5DYVo.mp4

Thanks!

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: SteelRush on June 24, 2019, 11:30:09 pm

Do you have any JAMMA arcade PCBs you can verify the monitor is working properly?

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: bernieberg on June 25, 2019, 11:43:27 am

Yes, I should have said that before.  I tested it with a Tekken 2 board.

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: bernieberg on June 25, 2019, 11:44:56 am

That tekken screen has some blur do to the action, but it looks good, if not dim (a separate issue).  Here is a test screen that looks good.

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: SteelRush on June 25, 2019, 12:32:46 pm

Have you tried adjusting the pots to see if you can dial in the picture?  I had to do this with my K7000 both 19 and 25.  Once the picture is dialed in as best you can, you further tweak in software.

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: bernieberg on June 25, 2019, 12:37:08 pm

Ya, it was really jumping around before I adjusted it.  This was as good as I could get it.  The jPac doesn't have the "sync" light on either.  Which usually is on if it is getting a good signal.

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: bernieberg on June 25, 2019, 12:38:58 pm

Quote from: SteelRush on June 25, 2019, 12:32:46 pm

I had to do this with my K7000 both 19 and 25.

The Groovy Arcade iso worked for your monitors?  Did you have do to anything besides choose the correct monitor?  Do you run it through a jPac or something else?  What video card do you use? 

Thanks!

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: SteelRush on June 26, 2019, 12:31:16 pm

I had to bypass the sync circuit on my JPacs.  See this thread for how:

http://forum.arcadecontrols.com/index.php?topic=152488.0

Title: Re: Groovy Arcade 25k7191 sync issue
Post by: bernieberg on June 27, 2019, 09:39:44 am

Quote from: SteelRush on June 26, 2019, 12:31:16 pm

I had to bypass the sync circuit on my JPacs.  See this thread for how:

http://forum.arcadecontrols.com/index.php?topic=152488.0

That worked!  Thank you very much.