Help with alignment tool for Horizontal Width correction

McCHitman

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Help with alignment tool for Horizontal Width correction

I wasn't sure if I should put this here or in the monitor section...

I finally got my monitor (K7000) going, just to test it, but I noticed that the cross hatch screen extended waaay beyond the left and right side when positioning it. So upon some searching I found out through the manual that there is a Horizontal Width coil that needs to be turned to change the size of the screen.

A tool is supposed to be used for this, as it can oppose a shock hazard and can break easily. I found this... http://www.amazon.com/Waldom-Alignm...ref=sr_1_1?s=hi&ie=UTF8&qid=1349477178&sr=1-1 on amazon, and I'm wondering if anyone knows anything about this product. Plastic or Metal? I really don't want to spend $30+ for a plastic set if this one is plastic.

Has anyone ever used anything else to adjust the coil?

Thanks
 
Yes they are plastic. They MUST.. be plastic..

If you use a standard allen wrench in there with it on, it will get cherry red hot in a matter of seconds. Its like an induction oven in there.. Ask me how i learned that lesson lol..


In the past i had adjusted width with an allen wrench with the monitor off. Couple turns, remove wrench, power on and test.. etc etc but i also found that using a metal allen also increased the chance that i would break the little ferrite core in there..


Buy that kit or one like it. Youll thank me later. Its so nice adjusting wirth with the thing up and running it makes the job alot quicker and easier.
 
FYI these tools are easy as hell to break/damage the tip.

Back in the day the good kit made of nylon was around a $1. now it is $30 and I refuse to buy it even though my is worn.

I usually do what cadillacman said. Also, the tool is so long you run the risk of you hand touching the high voltage assuming you can even get it in there.
 
bob roberts kit has this tool in it, i cut it down tho so i could more easily use it with the monitor on and in the machine.
 
I also bought Bob Robert's kit. It comes in a nifty, geeky pocket protector.

I use a ziploc bag to keep all the elements together, so they don't get broken, and I have used this kit on around 5 monitors to date, and it works great.

Concur with not using metal - first hurdle, the metal will change the coil (you're adding a ferric material to a ferrite coil - not good). Second, it's too strong - you could damage the coil, and then you're into repairs.

Always use the right tool. Now where is my crescent-hammer?
 
GC/Waldom # 8606-L is the correct plastic alignment tool for virtually every arcade game video monitor out there. It is what I use and it is particularly helpful on K7000 monitors.
 
GC/Waldom # 8606-L is the correct plastic alignment tool for virtually every arcade game video monitor out there. It is what I use and it is particularly helpful on K7000 monitors.

What do you mean, I been using the wrong tool all these years. Laughs..

When I use to fix 30 to 40 monitors in the Ast Research days. Plastic tools just did not last very long and I got tired of buying plastic tools at the 5 dollar mark.

One bamboo chop stick and a sharp knife and yes the bamboo chopstick will wear down quicker. Faster when they glue down the core. When the chopstick wears down, Just resharpen. If you need a different size or shape, just cut the tip off and reshape.

If you want to look professional use plastic, if your out some place and need something quick a long chop stick will work.
 
GC/Waldom manufactures the plastic alignment tools in different grades of plastic:

Ordinary soft plastic (will definitely break if you're too rough)

ABS plastic (generally won't break)

Fiberglass (I've never seen these break)
 
GC/Waldom # 8606-L is the correct plastic alignment tool for virtually every arcade game video monitor out there. It is what I use and it is particularly helpful on K7000 monitors.


This was the number that I chose from the kit to use. I attempted to adjust the coil today (remember I'm 100% new to this), It turned fairly easily, but I could still see how this tool could break easily.

I turned it clockwise and the H-Width got smaller (I had a cross hatch on the screen). But what I noticed was after I got it as small as possible, I still had a column of squares off the screen to the left. When I would adjust the H positioning, they would "roll" over each other on the right side, but not scroll to the edge of the screen.

So I backed the H-Width coil back some more until the right side of the cross hatch touched the right side of the screen, the only problem is that I still have 1 full column of squares off the left side. I haven't tested a game yet because I don't have my control panel done, but could anyone shed some light on this?

I don't know if there is a tutorial that covers this on the site anywhere, but I couldn't find it. I saw in the K7000 manual there is a switch called a Raster? And the description sounded as if it would solve my problem if I flipped it, but I looked at the chassis and couldn't find anything that looked like it did in the manual.

Any help is appreciated.

Thanks
 
If I had seen this about 6 hrs ago I would not have a broken width coil. I was warned not to use metal but that thing was acting like it was glued into place and would not budge. I finally did and the slug is not much more than a few chunks and lots of powder. I went to 3 different Rat crapps, Sears, Lows, and a Chinese restaurant, I thought a chop stick would work. I will probably end up dragging to Buffetts for repair.
 
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