Go7 monitor power supply

txplayer05

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is there any way to connect the original go7 monitor in my centipede case into a jamma switching power supply so i can remove the old power supply or do i have to leave it so it can power the go7 monitor along with the jamma power supply. if i have to leave the old power supply in for the go7 monitor then what can i disconnect without messing with the monitor power. i really want to remove as much as i can from inside the cabinet to make room for the jamma board and its power supply, but im not sure what i should disconnect or what i should leave connected. can someone help me with this...thanks...or should i just disconnect the pcb board plugs, the joystick and button plugs, the speaker plugs, and the coin plugs.
 
What he means is - the monitor will not run if it doesn't have the power passed through the isolation transformer at the bottom. If you look at it, you'll find two wires going into it, and two wires coming out of it. A meter on the AC200 setting should show this is where your 120vac is going in and coming out. Just connect the power wiring for your switcher to the input wires on your isolation transformer...
 
ok so if i get an isolation transformer and connect it to the monitor i can use the switching power supply that the jamma board uses or do i have absolutely leave the original power supply in tact...im just trying to make more room thats it...
 
The monitor does not run off a seperate power supply. A/c comes in from the power cord and splits one direction to an isolation transformer and then runs to the monitor. It splits the otherway and goes to your power supply ......


http://therealbobroberts.net/basic-ac.gif

In that pic it has a 3rd split to the marquee.

I am guessing your monitor is already hooked up to an isolation thransformer, so you should have one. The power supply you are talking about could it be the isolation transformer?


A monitor has its own power supply built into the monitor.

Here is a tutorial on basic cabinet wiring:

http://therealbobroberts.net/acwiring.html



Dave
 
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Okay, let me illustrate this for you. On the bottom of your Centipede, you'll see a rectangular metal box with a big transformer, a big blue capacitor, and a bunch of fuses on it. This is the main power supply for your monitor, your coin door lights, your marquee light, and your circuit board. Unless you plan to rewire all of your lighting and monitor power, you should just leave that in there, as well as all the wiring to and from it. Just remove the five fuses in the clips, but the leave the fuse in the round black fuse holder.

Now, this is not a Centipede cab, but it IS a JAMMA cab that I used a Centipede power brick in for the isolation transformer and lighting. Here is what the finished product looks like:

SDC11230.jpg


You can see the switching power supply mounted to the right wall. It is getting power from the power brick at the bottom of the cab.

In this next pic, you can see my line cord plugs into the right side of the power brick. The round black fuse holder was missing, so I ran the wires that went to it to a fuse I placed a little farther back. Since this cab did not have any wiring when I got it, I ran one wire to the power switch at the top of the cab and then back down to the fuse. The front connector that has the red heat shrink on it is the power to both the switching power supply and the marquee light.

SDC11233.jpg


In this next pic you can see I made a custom connector with only two pins that supply the isolated monitor power. The connector is located in the far back left corner:

SDC11231.jpg


This last picture shows the switching power supply. The white, black, and green wires are the power coming from the power brick. The other wires are the +5, +12, and Gnd wires to the JAMMA connector. The single blue wire going over the top (which I haven't stuck in a loom yet) is the +12vdc power I'm using to power my coin door lights:

SDC11232.jpg


So - unless you're sticking a $5000 MAME computer in there and need the space, I'd leave the inside original, add the power supply you need for the JAMMA board, remove the five fuses on the left of the power brick to remove unnecessary power to the original harness, and put in your JAMMA harness. Piece of cake...
 
ok so if i get an isolation transformer and connect it to the monitor i can use the switching power supply that the jamma board uses or do i have absolutely leave the original power supply in tact...im just trying to make more room thats it...

yes
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is there any way to connect the original go7 monitor in my centipede case into a jamma switching power supply so i can remove the old power supply or do i have to leave it so it can power the go7 monitor along with the jamma power supply. if i have to leave the old power supply in for the go7 monitor then what can i disconnect without messing with the monitor power. i really want to remove as much as i can from inside the cabinet to make room for the jamma board and its power supply, but im not sure what i should disconnect or what i should leave connected. can someone help me with this...thanks...or should i just disconnect the pcb board plugs, the joystick and button plugs, the speaker plugs, and the coin plugs.

It's probably easiest to leave the original transformer block in there so you can use the existing wiring to power the monitor, then use one of the 3-pin AUX power plugs (normally used for the flourescent, etc) to power the switcher.

If you want to start with a clean slate, pull the entire transformer, ARII, and all the DC power wiring, add an iso, and use the existing 6-pin power/interlock harness to control power going to the iso and switcher.
 
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