K7500 has got the black thats blue...

Thirdeye32000

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Hello All!
I have run across a problem with my K7500 in that I am not able to get a bright without causing the black to turn to blue. The first time I turned on this monitor it had a dull yellowish white and the colors seemed off a bit so I decided to re-adjust the color cutoffs and drives to get a better looking picture but found out that the green gun cutoff and drive had to be completely turned down to get the decent picture I started with. I am able to get a real bright white screen but then the back turns blue???
Thank you in advance... :)
Brian
 
The tube has not been tested.

I'll have to pick up tube tester from Ebay...
What do you think about the B&K 465 tester rejuvenator?
 
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