Wei Ya & Gorf

jumpman

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I have a wei ya 2620s chassis matched up with a tv tube swap, will it work in a Gorf? I have tried the set up in a missile command with no luck so I thought I would try it in my Gorf if it will work. If so which wires do I attach to the white sync wire from the chassis? The 3 pin connector has 5 wires, a single orange, a double orange and a double white. If anyone knows exactly which wires attach to the white sync wire from the chassis you would be my hero. I figure I should ask before I hack apart another harness for no reason.
 

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Thanks for the info, I did connect the orange wire to the white sync wire on the wei ya, I could get it to sync but after hours of adjustments I cant get it to look very good. When I do get it to sync the reds look too pink, If i turn down the brightness, the first board on gorf is not blue its black, if i turn up the brightness to make the screen blue then the black boards are way too bright they look grey with white verticle pinstripes. Sometimes I will get it close but not great and after a few minutes it just keeps getting brighter and brighter with white verticle pinstripes and sometimes the screen will flicker, usually just on the right half of the screen. I adjust the focus the get everthing nice and sharp it makes everthing too bright or way too dark. Usually when I get it to look really sharp and focussed it is way too bright. I just cant find a happy medium. Im not sure if I will ever get this set up to work it seemed like it was going to be real easy after hearing stories of the whole process taking like 20 minutes. I dont expect anyone to have any answers but I figure I will atleast follow up for people who are searching the forums for answers like me. Oh well I will keep trying...
 
If you can't get it lined up when looking at the game, then try one that has a test pattern function. It's a lot easier to dial in a monitor when the image on the screen stays the same. Set up the white balance by adjusting the cutoff and drive pots until the whites look clean, without any colored tint.

Are you sure that the tube you are using is good? Some TV's I've scavenged had really worn out tubes. I always check them before trying to transplant them into a game monitor. Zenith had a bad run of picture tubes during the 90's as well, those were dying and looking crummy shortly out of warranty.

If you don't have a tube tester, then you can at least display a solid color screen (red, green or blue) and ensure you can get a good solid, clear color.

A color bar pattern with varying intensity bars should give you an idea of how things will look.

A lot of Jamma games have built-in test patterns. I use a Mortal Kombat board.

-Ian
 
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