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Main => Monitor/Video Forum => Topic started by: JoyMonkey on May 08, 2007, 11:58:18 am

Title: WG 19k4602 - how do I find its H and V clocks ?
Post by: JoyMonkey on May 08, 2007, 11:58:18 am

I'm setting up AdvanceMame on an old cabinet with a Wells Gardner 19k4602 monitor in it. To get AdvMame's "Automatic Operation Mode" to work it asks you for some specs of your monitor, then it's supposed to  auto-configure all your resolutions for you.
Where can I find specs such as the horizontal and vertical clocks supported by this monitor?

I found an old post of Ken's that says this monitor should be covered by WG manual # 69X0942-100, but I can't find that manual available for download anywhere.  :banghead:

Title: Re: WG 19k4602 - how do I find its H and V clocks ?
Post by: Ken Layton on May 08, 2007, 05:55:33 pm

Here's the manual:

http://arcarc.xmission.com/PDF_Monitors/Wells%20Gardner%2019k4600%2019k4625%2019k4675%2019k4676%2019k4677%2019in.pdf

Title: Re: WG 19k4602 - how do I find its H and V clocks ?
Post by: JoyMonkey on May 08, 2007, 09:11:24 pm

Thanks Ken!

No mention of any pclock, hclock or vlcock values in there though. I guess I'll just set it as a standard 15Khz monitor and go through all the resolutions manually - I've never gotten the Auto Config to work with AdvMame, I thought this one might have those clock values somewhere.
Oh well.  :dunno

Title: Re: WG 19k4602 - how do I find its H and V clocks ?
Post by: MonMotha on May 08, 2007, 11:32:21 pm

If you know the timings of the monitor, you can work out the clocks fairly easily.  The pixel clock is the total horizontal resolution times the horizontal sync rate (which I'm presuming is what you mean by hclock).  vclock would then be the vertical sync rate, which is the horizontal sync rate divided by the number of total lines.

Note that "total" lines/pixels is not the same as the active video area.  There are blanked pixels at the beginning and end of each line (porches and horizontal retrace time), and there are fully blanked lines at the beginnign and end of each frame/field (vertical blanking, vertical retrace, etc.).  Total pixel/line counts include those blanked areas.