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Author Topic: Video Problems (Arcade Monitor)  (Read 1881 times)

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linuxpro

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Video Problems (Arcade Monitor)
« on: May 19, 2002, 09:28:39 am »
I know you are all probably tired of this question, but being new to this...well, I am slightly confused.
My scenario is this:
A Carrier Airwing cabinet (fully working)
A PIII (933) computer
A ATI RAGE/RAGE II PCI video card added into the system
MAME32
A JPAC card
=========
Ok, I have unplugged the JAMMA card from the old Carrier Airwing PC boards. I plugged in the JPAC card to the JAMMA slot. I have the JPAC jumpered on the 15 and 31.
My problem is that the display on the monitor is wigged out. The screen is split into two, with the right hand side of the screen on the left hand side, and the left hand side of the screen on the right hand side. Outside of that, it look good. I did research on the cabinet and found that it is a 15 khz monitor. (www.klov.com)
(
                  STANDARD RESOLUTION

         HORIZONTAL                    VERTICAL
Scan Frequency: 15.72 KHz    Scan Frequency: 60.0 Hz
  Scan Period: 63.6
« Last Edit: December 31, 1969, 07:00:00 pm by 1026619200 »

Malenko

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Re: Video Problems (Arcade Monitor)
« Reply #1 on: May 19, 2002, 02:47:30 pm »
Im no monitor expert but have you tried adjusting the monitor controls for horizontal position/width ?
« Last Edit: December 31, 1969, 07:00:00 pm by 1026619200 »
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tom61

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Re: Video Problems (Arcade Monitor)
« Reply #2 on: May 19, 2002, 08:23:44 pm »
You're feeding the J-Pac 31Khz not the 15Khz you need for the proper video.  If you didn't use a J-PAC you could've damaged your monitor by sending the wrong signals.

You need to run a utility to have your video card output the right signals. I'm not aware of any Windows utilities for your card, but ArcadeOS under DOS should do the trick (set monitor=arcade in its config).
« Last Edit: December 31, 1969, 07:00:00 pm by 1026619200 »

MrTomcat

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Re: Video Problems (Arcade Monitor)
« Reply #3 on: May 20, 2002, 05:34:28 am »
Sounds exactly like the JPAC scan halver kicking-in. Your computer outputs at 31khz hsync but in order to drive the arcade monitor your computer must output at 15khz. The JPAC cannot do this conversion for you (otherwise it would have to encompass a scan converter on the same board and would cost around
« Last Edit: December 31, 1969, 07:00:00 pm by 1026619200 »

Kyle Davis

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Re: Video Problems (Arcade Monitor)
« Reply #4 on: May 20, 2002, 05:20:35 pm »
Actually, you can make everything work just great in DOS simply by loading AdvanceCAB as a DOS TSR.

http://advancemame.sourceforge.net/cab-download.html

This terrific utility will send a correct 15khz signal to your monitor.  I also use AdvanceMenu for my front-end and AdvanceMAME for my MAME emulator.

Kyle
« Last Edit: December 31, 1969, 07:00:00 pm by 1026619200 »

Gordon

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Re: Video Problems (Arcade Monitor)
« Reply #5 on: May 20, 2002, 10:50:55 pm »
:) You guys have been GREAT!!! Thanks for all the replies. You have given me about 4 different options to try. Hopefully, I will get this thing to work. Once again, Thanks!
« Last Edit: December 31, 1969, 07:00:00 pm by 1026619200 »

  
 

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