K7000 Problem

Radar

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Brampton, Ontario, Canada
I have a k7000 with a problem , the top inch of the screen is out of sync. When I adjust the Horz hold I can move the distortion up and down a little and almost get it to sync. I am after doing a cap kit, Safety cap and c51. All with the same result. I need help .

Thanks For Your Time

Radar
 
This is common on the K7000. You can try to adjust it out using the 50/60 pot. It has to do with sync. If you use a different pcb it might disappear completely. It can be quite annoying.
 
My pcb don't have the 50/60 Hz pot nor does it have a spot for it. Maybe I should replace all the components associated with at area. Do you have any thoughts.


I used two different games to test it Crime Fighters and 19-1 . Both games sync were connect to the middle pin of the three sync pins connection.
 
sync should be connected to pin 10 only (last pin of the 3-pin section)...
 
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