Vision Pro in Centipede (Newbie)

Coleco

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I had some major burn issues with the monitor in my Centipede Cabaret and then it died. Figuring it needed a cap kit or something requiring some solder, I figured I'd use this chance to just swap out for a nice new Vision Pro ordered from Arcade Shop.

The vision pro comes with its own AC power cord, and worked like a charm when I plugged the Centipede video cable to the monitor's input and plugged the game's power supply and monitor's power supply in separately. (basically requiring two plugs in the wall)

When trying to power the monitor from the game's power supply, I get no video power. The AC power cord on the Vision Pro (which goes to the wall) is connected via a three-pin plastic connector to the power on the monitor's board via a three prong connector. My old burned-in monitor was connected via only a two-pin plastic connector to the board. I can plug the two-pin power connector from the Centipede power supply into the Vision Pro, leaving one pin on the vision pro vacant, but nothing happens. I'd like to run this off the old power supply rather than dealing with two plugs. Any suggestions?

Problem 2: The monitor is exhibiting fading in the upper left corner (keep in mind this is a vertically mounted CRT) as if there were magnetic interference. I can't find any. Suggestions?

thanks in advance. I'm in Grand Rapids, Mich.

BTW: If anyone wants to come get the old monitor for parts, restoration or other uses, let me know. Free
 
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and do you have a degausser???

i fnot might want to get one...


You could try the play for 5 mins, off 1 min, play 5 mins, off 1 min trick..

they will sometimes degauss themselves that way
 
I did the same thing on my Millipede.

You can use the the same connector. The new monitor does not need the ISO Xformer BUT it does not hurt anything to use it anyway!

SO, if you ever need to swap an older monitor into the cab, you allready have the ISO there.

I had a different issue... I could not adjust the screen to fit all the way. And Millipede is one of my favs, so I put in the new monitor. Works fantastick!

I bought a bunch of molex parts from Fry's for this, you can get them cheaper through mouser tho. The molex tool helps alot too, but if you only do this once in a while a small flat jewlers screwdriver works well for removal of pins. You will need a crimper tho. The right tool for this is IMPORTANT!

This is a great read on crimping molex pins!
http://www.therealbobroberts.net/crimping.html

-Mike
 
So...?

Thanks for the suggestions. I do not have a degausser, but will try the on-off trick.

So, based on what you say, the three pin connector (should) get power from the existing two-pin Molex without rewiring anything. In this case, it doesn't. I suspect this lack of power was the problem with the old monitor too. Is there a chance this could be caused by "Big Blue" going bad? I did a visual on the fuses and didn't find any obvious signs they were dead. Is there a specific fuse tied to powering the monitor.

As you can tell, I'm not an electronics expert.
I don't have a voltage meter or experience with soldering. I can live with the two cords, but would rather have it working the way it's supposed to.
 
So, based on what you say, the three pin connector (should) get power from the existing two-pin Molex without rewiring anything. In this case, it doesn't. I suspect this lack of power was the problem with the old monitor too. Is there a chance this could be caused by "Big Blue" going bad? I did a visual on the fuses and didn't find any obvious signs they were dead. Is there a specific fuse tied to powering the monitor.

Wait just a second there. Without looking at the Vision Pro plug and doing this from memory, doesn't the VP plug have the 'green' ground wire in the center position of the 3 socket plug? If so, you will need to either move the pins around in the sockets or rewire a new plug on. The existing cabinet wiring plug will need to plug into the 'black' and 'white' wires of the new monitor.
 
Wait just a second there. Without looking at the Vision Pro plug and doing this from memory, doesn't the VP plug have the 'green' ground wire in the center position of the 3 socket plug? If so, you will need to either move the pins around in the sockets or rewire a new plug on. The existing cabinet wiring plug will need to plug into the 'black' and 'white' wires of the new monitor.

Yes, the ground is in the center. Here is a pic of the one I used in a pac-man
IMG_6330.jpg


Easiest thing to do is cut the new Vision Pro cord, and match up the wires with the original ones. Splice them together and you are good to go.
 
I'll give that a try

That makes sense. I'll try splicing the cords.
The degaussing issue appears to have gone away on its own.
 
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