go7 issue

paul400

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just got a new flyback and caps. fired it up and just got a green screen.after some adusting i got a picture but still a green backgound. i pulled two transistors out of the green circuit but it still remains green so i dont think it is a green issue.heres is a vid of what it is doing through the camera but cant be seen by the naked eye. oh and this is with screen brightness turned almost all the way down and the tube is gooooood!




http://www.youtube.com/watch?v=BPzrBMM3ck4&feature=player_embedded
 
Start by verifying that the new fly is seated all of the way down on the deflection board. Next reflow the solder to the fly pins. Then verify continuity of all flyback traces, to ensure you have not cracked any traces. Finally, rejuv the tube as it looks like you may have a shorted gun or two.
Dok
 
Start by verifying that the new fly is seated all of the way down on the deflection board. Next reflow the solder to the fly pins. Then verify continuity of all flyback traces, to ensure you have not cracked any traces. Finally, rejuv the tube as it looks like you may have a shorted gun or two.
Dok

tube is good. just use it for testing chassis,and i just pulled a go7 off of it. i will reseat the flyback and report back.. also could this be a beam limiter of blanking isusse? just asking cause if i turn the screen all the way down it does not go dark. just green
 
reseated the fly, checked continuty and was good. put on a recenlty rebuilt go7 to verify tube here is a pic. what else should i check guys. i now have the screen turned all the way down and still getting as picture.
 

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Check the video signal header for cracked or cold solder joints and or solder bridges. Additionally check all traces on the neck board for continuity between all traces.
 
Last edited:
the 3rd transistor i left is bad, was just wasting time, should have checked that one too.
 

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