mrbill2084
Well-known member
k7000 gets darker suddenly after being on for 30min.
Guys asked me to fix his 3 in 1 game and it has a k7000a in it. It was getting dark, but I think also drifting focus( recapped it and no change).
So I put a k7000 chassis I had around in it and that chassis was getting dim after time (I did not notice if it was gradual or sudden).
So I stuck a 2rd k7000 chassis in it. This one just would make a dull pic. Turn up bright/contrast and colors and it would bleed. I did not leave it on long enough to see if it would go dim. I put that chassis in another k7000 cab. It has a decent pic in the tube.
So I grabbed a 3rd k7000 chassis. That one would adjust to a good pic. This time I was playing it(dig dug on a 60 in 1 I put in) and right after I finshed a game, when it switched to select screen it was dim. Tried it again the next day and it was dim after about 30 min.
Any ideas? Tube, yoke, PS, or isolation transformer? I will meter the yoke on friday. I hit the tube with the rejuvinator and it said it was good.
Guys asked me to fix his 3 in 1 game and it has a k7000a in it. It was getting dark, but I think also drifting focus( recapped it and no change).
So I put a k7000 chassis I had around in it and that chassis was getting dim after time (I did not notice if it was gradual or sudden).
So I stuck a 2rd k7000 chassis in it. This one just would make a dull pic. Turn up bright/contrast and colors and it would bleed. I did not leave it on long enough to see if it would go dim. I put that chassis in another k7000 cab. It has a decent pic in the tube.
So I grabbed a 3rd k7000 chassis. That one would adjust to a good pic. This time I was playing it(dig dug on a 60 in 1 I put in) and right after I finshed a game, when it switched to select screen it was dim. Tried it again the next day and it was dim after about 30 min.
Any ideas? Tube, yoke, PS, or isolation transformer? I will meter the yoke on friday. I hit the tube with the rejuvinator and it said it was good.
