Main > Monitor/Video Forum
New WG K7000 Help
Rodimus80:
I just got my hands on a Wells Gardner D7000, and I'm looking for some assistance on how to get my Groovymame connected to it? I assume I need a power supply and a JAMMA cable? Thanks in advance!
Rodimus80:
Here are some images:
https://ibb.co/nnNrP2S
https://ibb.co/j4Z4ydD
https://ibb.co/fXLk6YB
https://ibb.co/F4GhQmk
https://ibb.co/cTbqvjs
https://ibb.co/8YgFJPM
https://ibb.co/yXDsgtX
https://ibb.co/QNkS8dm
buttersoft:
There must be some specific info on here about the D7000, but assuming for the moment it's a 15kHz monitor (and that your GM setup is outputting 15kHz RGB in some form using crt_emudriver) it will take RGBS at very least, and maybe RGBHV. You need to find the connector for that, and google some more info maybe?
Once you find the header for 15kHz RGBS, you break out your VGA with something like this - https://shorturl.at/jFNY8 and feed it into the D7000's chassis. crt_emudriver can output composite sync if you tell it to. Or if the D7000 takes RGBHV you can just use the VGA signal as it stands.
This will produce a very dim image. Dial the pots up as far as you need to. If they don't go high enough, you need a video amp. You can build a cheap one using a THS7314/7316 or 7374, or buy one. A jpac is one, but only outputs to a jamma edge, so you'll need to break the signel off the jamma edge and get them into the RGBS header on the D7000 chassis. A full jamma cabinet already has this connection in place, of course.
Errr, is that helpful? I'd certainly look around for more info on the monitor, to check it's capabilities and see if you can find the RGBS header.
Rodimus80:
The K7000 has this molex connector for power.
What would I need to make it work with this?
buttersoft:
Errr, ok, the way you are asking this time has me pretty worried you're going to cook yourself :( I genuinely hope this is not the case.
The molex power plug has three pins. It kinda looks like one is wired to earth/ground to me. In Australia we use green+yellow wiring for mains Earth. This may be different to board ground though, be aware. The other two pins will be live and neutral.
Your isolation transformer will output to two wires, and these will be live and neutral. It normally doesn't matter which way around they connect. The thing is that anything that needs an isolation transformer doesn't require an earth connection, and providing one may be detrimental or dangerous. The reverse, as here, can be dangerous too.
I would wait for someone who knows more about the K7000 or D7000 and how it's meant to be powered. They were really only available in the US? or were they in Europe as well? So i know very little about them.