Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: vartech on July 08, 2004, 11:50:57 am
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I have the Arcade VGA cable and I am trying to wire it using the cable from ultimarc on a Wells-Gardner 25k7193 monitor. the question is the cable has G R B H V and a bunch of cables wrapped together with a I is this ground? and if so were do I ground it? also the picture scrolls vertically. I have changed the pots on the board and finally had to connect the H and V together. will a video amp take care of allowing me to solve the scrolling and seperate the H and V so I can add a light gun? ???
Please help I have three boys who are howding me to play the games i talked about when I was an arcade adict.
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Hello vartech.
I'm not familiar with that cable and could not see a description of it on the Ultimarc site but for the connection you should take a look here .. http://link.mywwwserver.com/~jstookey/arcade/WG_25k7191/
That should also answer the question about the light guns (seperate H & V).
Regards to all,
John
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I will look at the cables on my monitor it had five cables of a harness that I assumed were R G B Vert and Horz. Now I wonder if they were R G B Horz and ground. I will have to double check that. the cable does not match the discription from Ultimarc because they say it is labeled ground but Mine has an I and it is made up of mutlple cables. I will check and reply when possible but I am gone for three weeks vacation. I hope this works my kids are dying to play
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Proview thanks for the link it was exactlly what I was looking for I found out wht aI thought was V was Ground so I ground that and now just have to connect a wire for the Vert.
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No, no, no...
The bunch of wires wired together are the ground. The lable is not the letter "I", it is a "-" dash symbol.
The H and V are horizontal and vertical synch. If your monitor is a composite synch, then you combine the V and H wires together and attach them to the monitor.
Check this link:
http://www.ultimarc.com/avgainst.html
To quote the web page:
R, G, B = colours
H = horizontal sync. H and V sync can normally be connected together for most monitors to produce composite sync.
V = vertical sync
- = ground
+ = 5 volts. This connection must be insulated if not used.
A side note, I recently purchased my cable and there was no "+" wire. This was fine because I didn't need it anyway.
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I figured the - was the ground and it uses composite sync but found out here that I can seperate the V and H
http://link.mywwwserver.com/~jstookey/arcade/WG_25k7191/
The only issue I have now is the vert is scrolling when I switch from mamewah to mame to xp. I can adjust to stop it but it is still a pain.