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| ZippySLC:
--- Quote from: rampy on June 24, 2003, 10:47:19 am ---Taking another crack at this with embedded text: --- End quote --- --- Quote ---This is true in that running a power supply without a load can blow the powersupply. I wonder if you have a smart power supply that knows to not turn on... but regardless if you look at those wiring diagrams I posted alink to if the marquee is lighting, there's most likely power running to the monitor... --- End quote --- I honestly have to spend more time looking over the wiring diagrams. I'm 99% sure that the monitor didn't fire up, nor did the coin door lights, but the marquee bulbs did. --- Quote ---This shouldn't be a problem once you get to the point of using the smart power strip. You'd just leave the cabinet power switch ON and plug it into the strip and when you turn on your pc the marquee, monitor, etc will turn on. --- End quote --- The goal was, however, to not have to actually physically power up the PC by pressing a button. I wanted the PC to come on when it got AC power via the power strip. I know some BIOS'es will let you do that. --- Quote ---You are correct sir... and Peale is absolutely correct that it's required and important for safety reasons and bad things can happen without it in place. --- End quote --- Then I will leave it in place. --- Quote ---What do you find limiting about the jamma interface? What is the control panel setup that you desire? If it's 4 player, yeah.. I imagine a jpac isn't going to cut it alone for you. But if you are referring to wanting 6 or 7 buttons per player the J-pac can accomodate you. See the JAMMA standard is for 2 players each with 3 buttons (max) and 1 credit and 1 player start button each. BUT there's the concept of JAMMA+ where an extra harness (often called a "kick" harness because it consists of the "kick" buttons in say Street Fighter II) runs the additional wires to the additional player buttons. The J-pac has extra headers/terminals to accomodate that. The j-pac is a very handy and easy way to interface a PC to a JAMMA wired cabinet with a minimum of muss and fuss. --- End quote --- Hmm. I ordered the I-Pac. I was planning on two players, six buttons per player, plus some extra buttons to control various aspects of MAME. I wanted to also keep the coin door operational to trigger the credits to register. --- Quote ---My bad, it was just a shot in the dark and was sharing a small gotcha I had with a cabinet I've been working on. I'm *guessing* that your switching powersupply knows not to let itself turn on without a load. You could check with a voltmeter (or look at the coin door lights if they are intact/working)... THe switching power supply should have no bearing on the monitor though. Take a look carefully at the monitor to see if it's "on" but just doesn't have a screen as their is no source input... (but be careful back there for gods sake!) There's bound to be a tube back there with a slight orange glow (or you can see the screen sorta flicker on the front when you apply power on/off) --- End quote --- The coin door lights were definately off. My monitor gives a slight flicker when it powers up, which it did not do when I disconnected the board. --- Quote ---I'd look at those links I posted earlier and compare them to your cabinet.. .from the pictures you posted the diagram is very relavent. I'd look into the j-pac as a plug and minimum wiring and play option. You can definitely get there from here, but you need to make some decisions and understand the ramifications of those decisions. --- End quote --- Well, the idea was to pretty much ditch all of the JAMMA spec wiring except for power to the monitor, marquee, and coin doors. I wanted to keep the control wiring as "open-ended" as I could for future expandability. What I would love to do is just get it so I can power on the monitor, marquee, and coin door lights. I understand that I can run the coin door lights from the PC, but I would rather not. --- Quote ---I'll try to help as best as I can with links and my small body of experience... =P good luck --> and please clarify as to what your project goals are i.e. which controls... --- End quote --- I definately do appreciate your help! I haven't finalized exactly what I want, but these are the basics: - Two HAPP 8 way joysticks (with the bases that can switch them to 4 way) - Player 1 and Player 2 start buttons - 6 buttons per player - Various buttons to control MAME (pause, reset, menu, etc.) - HAPP Trackball (I bought a USB one, so it doesn't really matter) I have an ArcadeVGA card on order, ordered with the VGA breakout cable. (So I will also need wiring specs for the video input of my monitor) |
| ZippySLC:
I stand corrected - the monitor does power up without the JAMMA board. The only thing missing is the coin door light. So I guess that I could ditch the switching power supply and get a small 12v PS for the coin door lights, or run them off a drive power connector on the PC's power supply. |
| rampy:
You could do that... and that's what I'd recommend if you are NOT going to use an jpac... basically ignoring/removing the switching powersupply completey (I'd disable the AC lines into the switching power supply as I alluded to initially if that's the route you are going) Good luck with your project... keep us posted. Rampy |
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