k5501 picture size

marlboroa

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I have a k5501 that wont adjust to fill the screen. all it will do is adjust the picture within the size it is now. heres a pic of what im talking about.

PC230002.jpg
 
1) Did you do a COMPLETE cap kit?

2) Did you replace the vert transistors? If so, with the same ones that were there before?

3) Have you tried a different board?

4) Have you verified you have the proper yoke readings for the vertical?
 
You may swapping the vert transistors (after reflowing that entire vertical area behind the flyback and checking to see if that helped first) to see if the problem changes...
 
got it mostly fixed. I took the chassis out and noticed that it has been "repaired" a time or two before. I changed the 4-5 caps in the vertical section and reflowed all of it. Now it fills the screen like it should but there is a line where it used to stop at thats lighter then the rest. like one pixle wide. i think whoever had the game before just left it running and it burned in the line. oh well atleast its working now.
 
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