It's happening! k7000 19" to 13" :)

Mattspad

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Hey guys I'm about to build a k7000 13" out of a 19" chassis and the k7000 is coming in tomorrow. One big question is how do I hook up the yoke without starting fire? I chopped the connector like an idiot so idk wtf it was like before can someone post a good diagram on how I hook up the horizontal and vertical with good pictures and details? I know what side is the horizontal and vertical on the tube's yoke but which is which on the chassis any help appreciated.

Also I will be capping this thing and putting a new flyback. We're gonna all see how this goes and what happens but I'm excited. I'll keep the klovers posted :) Hopefully this thread helps someone else too.
 
Chassis came in good shape. The tube fits the thing. I tested the fuse and it wasn't blown so the thing couldn't have catastrophically failed. It's got the unrealrobboberts cap kit and new pots on it. I'll replace the flyback with one from the arcade god security0001 before powering because I dont mess with no white knobs. Pictures will be posted soon.
 
For the yoke wires. If you get the horizontals and verticals together but are on the wrong posts the image will just be upside down. Not scientific I know. :)


Hey guys I'm about to build a k7000 13" out of a 19" chassis and the k7000 is coming in tomorrow. One big question is how do I hook up the yoke without starting fire? I chopped the connector like an idiot so idk wtf it was like before can someone post a good diagram on how I hook up the horizontal and vertical with good pictures and details? I know what side is the horizontal and vertical on the tube's yoke but which is which on the chassis any help appreciated.

Also I will be capping this thing and putting a new flyback. We're gonna all see how this goes and what happens but I'm excited. I'll keep the klovers posted :) Hopefully this thread helps someone else too.
 
For the yoke wires. If you get the horizontals and verticals together but are on the wrong posts the image will just be upside down. Not scientific I know. :)

Yeah so I found the vertical which are the smaller wires go on the left and the horizontal thicker wire goes on the right. If you hook a horizontal in a vertical or vice versa it won't flip the image but actually destroy the chassis/yoke.
 
as long as you do not cross either of the pairs to the wrong circuit your fine.

Vertical pair is the closest pair to the big wall "VR" heatsink.

Horizontal pair is closer to the smaller H.O.T. heatsink.

my video will help with some of your questions.
i use a 74/7500 but the concept is the same on ANY chassis.



Peace
Buffett
 
Yup. And the yoke pairings are usually spaced slightly differently so you cannot put the horizontal on the vertical and vice-versa. WG chassis are good for this. With your 19" chassis going onto the 13" tube, the key thing you'll need to look out for is potentially increasing the value of the C38 width capacitor so that the image can fit horizontally on the screen. That would really be the only thing I can think to look out for, especially since it's a 19" chassis so it will already have the STR30123 VR on there instead of the STR30130 that is on the 25" chassis.
 
Yup. And the yoke pairings are usually spaced slightly differently so you cannot put the horizontal on the vertical and vice-versa. WG chassis are good for this. With your 19" chassis going onto the 13" tube, the key thing you'll need to look out for is potentially increasing the value of the C38 width capacitor so that the image can fit horizontally on the screen. That would really be the only thing I can think to look out for, especially since it's a 19" chassis so it will already have the STR30123 VR on there instead of the STR30130 that is on the 25" chassis.

I think it may have the right one already not 100% sure. You have to account for the yokes extra resistance too.
 
You may also want to check the VR and the HOT, either can be bad and still not blow the fuse. Also, if your OG flyback has no cracks and the knobs move smoothly, I recommend leaving it alone. The originals are better quality and for some reason the replacements do not discharge the tube like the originals do. Anyone know whats up with that? It bugs the crap out of me. I haven't had my hands on a K7000 13 inch chassis, do they run the same VR as the 19 inch chassis?
 
You may also want to check the VR and the HOT, either can be bad and still not blow the fuse. Also, if your OG flyback has no cracks and the knobs move smoothly, I recommend leaving it alone. The originals are better quality and for some reason the replacements do not discharge the tube like the originals do. Anyone know whats up with that? It bugs the crap out of me. I haven't had my hands on a K7000 13 inch chassis, do they run the same VR as the 19 inch chassis?

I cant trust a white knob flyback so I ordered one from the security0001 <---(best flybacks). To my knowledge there is no difference in the chassis other than on some chassis they use a different width cap and some they don't. K7000's went through many changes with yokes and whatnot so it's hard to say.
 
Yeah so I found the vertical which are the smaller wires go on the left and the horizontal thicker wire goes on the right. If you hook a horizontal in a vertical or vice versa it won't flip the image but actually destroy the chassis/yoke.

I thought you didn't know which wire went where but ID'd which was horizontal / vertical. Must have misunderstood what you were saying.
 
I thought you didn't know which wire went where but ID'd which was horizontal / vertical. Must have misunderstood what you were saying.

At first I didn't know but I realized the horizontal is the smaller resistance and vertical has higher resistance. Than watching a youtube video I learned where each went.
 
Alright the new flyback came in super quick and huge thanks to security0001 for sending it ;) I've installed and that went pretty quick. I noticed on the old one it had lots of hairline cracks around the control knobs and on the side of the control knob area. In short that would make a nice light show if I plugged it in. I know you guys will crucify me for this but I didn't have any of the molexs for the yoke hookups and the degauss coil so I soldered wires to the posts and put qds on the ends. Its not neat but it works I also found a lifted trace on the cont. pot so I fixed that and there was some cold solder here and there on the chassis. I found the most cold solder was on the input headers go figure but that's all been fixed. They snipped the return ground for some reason so I put a new wire there as well. I've yet to test this thing that'll happen tomorrow when I have time but I feel really good about this thing.
 
Sounds like some major progress. I'm excited for you to fire it up, and curious about your results.

Yeah that flyback was cracked you were right while the cracks were thin in the sunlight I saw many of them. I'm super stoked about firing this thing up tomorrow it's just today I don't have the time. It'll probably work I think I fixed any issues not sure fingers crossed, pictures soon :)
 
And you mentioned it looked like it was recapped already and fuses were good. Sounds like you are a good point to fire it up. Do it now! :)

I wish I could but I'm way too tired tonight and I don't feel like it today :) Long day at school...
 
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