Build Your Own Arcade Controls Forum
Software Support => GroovyMAME => Topic started by: monkeybomb on June 21, 2016, 04:35:33 pm
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Monitor: WG 25 K7193
OS: Win 7 sp1 64 bit (no updates)
Video Card: VT 4350 PCIe 512mb - https://www.amazon.com/gp/product/B002AKKMNI/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1 (https://www.amazon.com/gp/product/B002AKKMNI/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1)
If it matters, the drivers read the card as 4330 instead of 4350.
CRT_Emu Driver version: 2.0 beta - I tried the older driver with the same result on this pc
Using a J-pac with the jumpers on 15 and 31 khz which I believe is the default.
I have things mostly set up, but the picture usually won't stop scrolling no matter what I do with the v-synch dial. In the event that it does stop scrolling, the top of the screen and the bottom of the screen are flipped. I used this card with a different computer with the old driver and did get it working, but there were other issues with that pc, so I need to move on.
An additional problem is that the monitor picture is especially dim. I say especially, because I need a cap kit and the monitor is dim for jamma boards as well. However, it's much more dim with the pc than any of my real boards. This was a problem with the other pc as well.
I'm considering just getting an arcadevga.
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Sync issues and dim makes it seem like your jpac might not be getting power?
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Sync issues and dim makes it seem like your jpac might not be getting power?
Thank you for the suggestion. How do I trouble shoot and correct that? Is there a reason the jpac would be getting less power than the jamma boards? Is there a way to boost the power?
Edit to ask:
Do I need to buy a video amp? https://www.ultimarc.com/vidamp.html (https://www.ultimarc.com/vidamp.html)
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No you don't need a video amp the jpac already has one built in. The jpac is plugged into the computer correct? And the LEDs are on?
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No you don't need a video amp the jpac already has one built in. The jpac is plugged into the computer correct? And the LEDs are on?
I had it connected to the computer correctly, but the 5v connection from the power supply to the jamma harness needed to be disconnected. I took a look at the jpac faqs after your comment about the power and it says to disconnect low voltage. Thank you for the help, it works now!
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If you have a JAMMA power supply in your cabinet, you should disconnect it completely from the AC supply. Running a power supply without sufficient load can cause a fire. If you need DC 5v or DC 12v for anything in your cabinet (like coin door lights) you should get it from a molex power connector on your MAME PC.
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If you have a JAMMA power supply in your cabinet, you should disconnect it completely from the AC supply. Running a power supply without sufficient load can cause a fire. If you need DC 5v or DC 12v for anything in your cabinet (like coin door lights) you should get it from a molex power connector on your MAME PC.
The power supply also goes to the isolation transformer for the monitor. I assume that's enough, but I didn't even know this risk exists before now.
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The power supply also goes to the isolation transformer for the monitor. I assume that's enough, but I didn't even know this risk exists before now.
The power going to the isolation transformer is 110v AC. It's probably a direct pass-through on the power supply, if it goes through the power supply at all. The power supply converts the 110v AC to various DC voltages +/-12v, +/-5v, etc... It shouldn't have anything to do with the isolation transformer unless the two are somehow integrated.