K7000 chassis problems

nitrocow

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I have a mortal kombat with a k7000 chassis in it moved it all of 10feet around the shop plugged it back in and looks to have collapse but haven't seen it this bad

I check all my connection reseated everything check the fuses.

Haven't fixed collapse so if it is that what needless to be do

Thanks
 

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broken V. Size pot could do it too. particularly if you have a remote board, you look at those the wrong way and they break.

the K7000 can develop some fairly misleading breaks in traces. you'll only know if you remove solder from the yoke pins one at a time (don't remove all or the plug will fall out :) )

you want to concentrate where the yellow and brown wires connect. beyond that, I think the more realistic failure would be in the line that provides the voltage to the vertical IC. there's a way to test it, I don't remember the exact pin. but there's a resistor that can go open and a diode near the flyback if I recall. I just woke up and haven't had coffee yet, brain is like a ball of fuzz right now.

in other words you need to see if the 24-27V is reaching the vertical IC, because without it that part won't get power for vertical deflection. if power is present and you still have vertical collapse, then the IC itself is probably bad.
 
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