Author Topic: A few questions from an arcade newbie  (Read 2498 times)

Offline Atstroboy

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A few questions from an arcade newbie
« on: April 20, 2009, 03:38:41 AM »
Hi all,

I am a new member of the forum, 26 years old from France.

My registration here has been motivated by the recent purchase of my very first arcade PCB (Futari BL). I am an old timer in video games though and a big fan of Cave stuff.

I don't have enough room at home for a proper cabinet so I gathered a bunch of costly gizmos as a replacement:

- Supergun Sigma Raijin
- XRGB2+
- CRT monitor
- MFBL

The Sigma is plugged via RGB into the XRGB and the monitor is turned vertically.

I have to say that everything is running smoothly besides a few details:

- When I start up the supergun a jaggy picture appears on the screen during 1/2 seconds then I get to the memory check etc.
This picture basically shows what was on the screen when I turned the supergun off the previous time but distorded and a bit jaggy. Is that normal with PCB? Could that be a problem with the voltage on the supergun?

Now two questions specific to MFBL:

-  I sometimes see kind of a faint grid pattern in between the first artwork and the start of stage 1. This is extremely short, half a sec maybe.

-  I also spotted color variations on right hand side of the screen during end of stage/scoring displays . The changes occur when the counter jumps from small gems to big gems and so on.
This is pretty weird in my opinion because if something was wrong with the screen or the xrgb I should see that kind of stuff all the time... But I don't.

I can make pictures to illustrate all this if you want. Thanks for your help!

Cheers



Offline SuperPang

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Re: A few questions from an arcade newbie
« Reply #1 on: April 20, 2009, 06:48:52 AM »
Garbled graphics before a memory check is perfectly normal for arcade hardware.

Offline thamasha69

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Re: A few questions from an arcade newbie
« Reply #2 on: April 29, 2009, 01:44:32 AM »
Cool setup  :)

I have the exact same - Sigma Raijin -> xrgb2+ -> CRT

Megalixir

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Re: A few questions from an arcade newbie
« Reply #3 on: April 29, 2009, 03:07:47 AM »
I have the exact same setup as well. And yeah, that's perfectly normal.

Offline Atstroboy

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Re: A few questions from an arcade newbie
« Reply #4 on: May 20, 2009, 12:47:35 PM »
What settings do you use for sharpness and v-lines?

I personnaly use sharp=1 v-line=2, is that close to the quality you get on a real arcade cabinet?

Offline adverse

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Re: A few questions from an arcade newbie
« Reply #5 on: May 21, 2009, 12:28:02 PM »
Looking forward to your MFBL scores  :righton:

Offline thamasha69

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Re: A few questions from an arcade newbie
« Reply #6 on: May 22, 2009, 03:00:36 PM »
I usually set my xrgb2+ to
sharp=3
v-line=3

Offline spl

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Re: A few questions from an arcade newbie
« Reply #7 on: February 08, 2010, 04:52:41 AM »
Is an upscaler like the XRGB-2 really necessary for running a supergun to a CRT TV if it has RGB input already?? I thought most people used upscalers for LCDs ? How much difference would there be with it?

Offline SuperPang

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Re: A few questions from an arcade newbie
« Reply #8 on: February 08, 2010, 07:09:59 AM »
I can only assume they don't have Scart.

Offline thamasha69

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Re: A few questions from an arcade newbie
« Reply #9 on: February 08, 2010, 10:27:31 PM »
Correct.  My tv's had composite input only, so I got the xrgb and had some custom cables made for my systems and such.  Best decision I ever made.