XM-700 and XM 702

stutrac

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M-7000 and XM 702

i am installing a replacment B+W monitor in my game that orig had M-7000(non reverse image) i have a XM 702 but has a reverse image is this monitor compatable??? i matched up all the chassis wires and they match up, but how do i get the image back to a non reverse image on my XM 702
 
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While I have never reversed the wires on those exact chassis I have on others and they should all be identical in function. To me what you need to look at is your yoke connection wires....ya know....the 4 wires that connect to the yoke - gray, black yellow and red is typical if I remember right (need one in front of me!). You need to flip-flop those. What you want to do is flip-flop the 2 horizontal leads and flip flop the 2 vertical leads.....BUT DO NOT CROSS THEM!

If you don't have any schematics telling you which is which.....it is always best to check them and determine for yourself....and not rely on a potential misprint in some silly manual. Anyways.....using your multi-meter between two wires measure resistance and you should get maybe a couple of ohms, and between the other two should be 15-30 ohms.....any other combination should be open circuit. The low resistance pair is horizontal, the high resistance pair is vertical. Flip-flop the two horizontal wires and you flip the image horizontally, flip-flop the vertical wires and you flip the picture vertically. Flip both (do not cross them) and you get a mirror image.

Hope this helps....
 
The XM-700s flip differently then the other black and white monitors I've seen.
They only have three wires on the yolk and you don't want to swap them. Look at the transformer by the fly back on your monitor (see pic). The non inverted one will have the green on your left and the gray on your right like the one in the picture and your inverted monitor will have the gray on the left and the green on the right. Swap the wires to flip the image
 

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The wires you swapped they were the smaller gauge wires closest to the flyback not the thicker green and black right. You should get a full raster screen without a PCB connected. If you see a single line that's not right.
 
yes i swap the 2 small wires near flyback
i checked all monitor adjustments and they all work, bright, contrast, i guess the horz Collapsed
 
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