K7000 - No Brightness before or after cap kit and new flyback

richiewoo

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K7000 - No Brightness before or after cap kit and new flyback

I have a K7000 that was dogging on brightness. It had the original flyback and had never been capped so I started there.

Reinstalled the chassis and still the same thing! Fly turned all the way up and still barely there.

I checked several resistors (R103, R213 and R301 among others) and they all seem good. I was pissed when the cap kit and fly didn't work and didn't stick around (the game isn't at my house) and measure voltages. I would assume that the B+ is low.

I'm thinking I'll start with c36 as I think I have one, an go from there. In the meantime, if you've seen this and have something to check before I head back over to reinstall and check voltages, that would be great!

Thanks in advance.

Woo~
 
Haven't gone there yet.

I have another tube that I could drop this chassis into though to rule that out.

I'll have to maybe do that when I head over there.
 
B+ Good

So, I went back over there after fixing a touchy trace and it got a little better - or at least I think it did. Hard to say when testing a game at night rather than during the day.

Anyway, B+ is solid at 130.

I tried another K7000 on that tube and it was better, so there's stilll something wrong here. I will go over the neckboard again when I get a chance and keep you posted.

A friend of mine has a rejuv so I just need to make him a socket for this tube and then I can rule that out.
 
Update _ solved

It was the tube. I put a different tube in that game and it looks great. The tube in tere was burned in pretty bad too, so I might not even rejuv it. Game looks great.

I guess I have a tendency to doubt the work I did on something instead of blaming the tube!!


thanks for all your help.
 
muwahah i knew it... just wanted to pay back and make sure thats what your issue was..

gonna add to k7000 sticky if you dont mind..
 
Don't mind at all!

Yeah, dunno if I'll shitcan the tube anyway yet because if the burn. The donor tube looks great and I'm keeping it in that game. Like I said I need to make an adapter for my buddy's rejuver so we'll see what happens. Who knows when I'll get to that tho!!
 
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