Arcade Legends - a way to change the operating resolution?

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Arcade Legends - a way to change the operating resolution?

So this thing is basically a tower. It has the VGA output go to a small board (along with the audio ouput, keyboard output, etc) then to the monitor. At first I thought this was a VGA-to-whatever converter among other things.

But when the game initially boots up, it has a scramble picture during the loading. Once the Ultracade front end is running, the image syncs perfectly.

Now, I recently had to change a battery in one. I hooked up a VGA monitor to the output so I could get into the CMOS and reset the power on option. During boot-up, the loading is VGA, but the pic scrambles on the VGA monitor as soon as the software is running. This tells me that the resolution is software based and not hardware based.

I'm trying to figure out how I can tell it to either always output as VGA, or whether I can change the output to CGA, EGA, or whatever. Could these things have an ArcadeVGA card in them?

A friend was telling me that there might be a jumper on the motherboard for determining the sync output, but I'd think that it would always be in one sync if that were the case, and I wouldn't have been able to use the computer monitor during CMOS setup, and the arcade monitor during gameplay.

Anyone have a clue about these things and their resolution setup? I have an extra case that might work, but I want to be able to hook it up to the same monitor for CMOS and gameplay screens....
 
Necrobump!

Still need to know this. AL defaults to CGA output, so I can't hook up a VGA monitor to check it out. Hooking it up inside a dedicated AL cab using the USBlinx interface gives a scrambled pic, like there is no horizontal sync. Monitor and video cable have been confirmed good. Either it's an issue with the pc output, or the interface board...
 
the one I had, had a dongle of sorts plugged into parallel port to presumably tell the machine to be either CGA or VGA as with the dongle it would be CGA (from memory) been ages since I had it, so bit fuzzy
 
from what I remember on arcade legends the unit is designed to boot up default to cga. Dongles in the parallel port have no effect on resolution with arcade legends...they do with ultracades. You have to enter the bios settings on the computer using a vga monitor and under the parallel port settings you change it to ps2 I think. make sure you take a picture of any settings before you change them in bios. if you want it to output to a cga monitor after all is said and done you will need to put the parallel port settings back to how you found them.
 
I had a chance to work on one of those PC's and from what I can remember is that the video card is stock but once the software loads - If memory serves me right the OS is called "Joshua" - It automatically throws the video card drivers into 15khz mode.

I don't think the USBLinks board does any of the conversion at all... But it has been a while since reading up on it....
 
I don't think the USBLinks board does any of the conversion at all... But it has been a while since reading up on it....

Nope. It just amplifies the 0.7v color signals for the CGA monitor, and combines separate sync to composite sync if necessary. I tried jumpering the horizontal/composite sync signal from the VGA connector to the monitor but it didn't change anything.

I have a sync-sensing monitor at home. I'm going to hook it up and see if it will sync, then try to figure out which res it's running in and if I can change it...
 
If your able to get anything on your screen, go thru the service menu. I can't remember if there was any option to change which resolution it output.

If all else fails, and you have the disks.. I would suggest reloading the software then as it may be a corrupted file on the hard drive.
 
Don't have the disks. I'll try messing with this later if I have time. Found in the manual you can change it to VGA from CGA, but I need a stable pic to do that...
 
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