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#16
12-06-2009, 12:59 PM
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Mick,
Have you verified that the aquadag (conductive coating) of the CRT is securely grounded? If ungrounded or poorly grounded, it can cause a whole plethora of wierd symptoms mimicking sync, AGC, phasing and width/linearity troubles. Worth bookmarking for future referance. Bill(oc) 
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#17
12-06-2009, 08:14 PM
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Put new coat of dag on the crt when I had it out and the steel finger ground touches it nice. Have gone through most of the tweeks and adjustments and the black line is probably because it is not centered. But I tried the focus and centering screw at the joke and they do not really change anything..It feels like I can not turn it in anymore and I do not want to hear any crt neck glass crack..so I am chicken to turn really really hard.
I did as mentioned twist the yoke and level the picture, and to do this had to loosen the wing nuts... But do those two wing nuts have to be loose to turn the focus and centering screws?
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#18
12-06-2009, 08:27 PM
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The focus screws should turn very easily. They seem to only have much of an effect when the gap starts to close. Once they get about 1/4" - 1/2" away from the other pole they don't seem to change the focus much.
I don't know about the centering screw since mine is different. I would doubt that the wing nuts need to be loosened. John
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