Bad Flyback?

itobandito

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Believe I have a bad flyback. Not sure if there is glue on the top of it or some goo is coming out from inside of it. Picture is very dark and colors are a bit off. Am going to cap the monitor and think I need a new flyback too. What do you guys think?
 

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Could be goo.. Could be glue.. Look at the 2 knobs on the fly, are there any hairline cracks around them? What kind of monitor is this?

If its the original fly and the monitor is 15-20 years old.. Then replace it..
But there are some certain newer (90s) monitors that also have shit fly's..

Or just cap it and see what happens. As what you described sounds like failing caps and or a sad tube.
 
its a neotec nt25e from 96 i believe. its in a cruisin world i just bought. can anyone verify if theres has this stuff on it. the knobson the flyback aren't visiblewhile on the machine. need to pull it
 
Does it get brighter or dimmer as it warms up? Does the focus drift in and out, like, starts off fuzzy then gets clear after the game warms up? Those are the symptoms of a bad focus divider network on the flyback. Usually you will see hairline cracks around the control knobs too.

But... if the picture is correctly focused and stays that way, and the brightness never changes, it might not be the flyback, but a weak tube. Do you have a tube tester? Does the SCREEN control have any effect?

-Ian
 
I think it gets dimmer actually as it warms up. Don't have a tube tester unfortunately =( The tube does seem to have some magnitisim in the upper left that doesn't seem to go away but may just need a degausing coil to get rid of it. I tried the magnet trick but that didn't seem to help any.
 
I think it gets dimmer actually as it warms up.
Bad flyback.

The tube does seem to have some magnitisim in the upper left that doesn't seem to go away but may just need a degausing coil to get rid of it. I tried the magnet trick but that didn't seem to help any.

Use a degaussing coil, or a bulk tape eraser, or some other alternating magnetic field, never a permanent magnet. You want to *de*magnetize the tube, not magnetize it. Sometimes it's even possible for the metal frame around the tube to get magnetized too.

-Ian
 
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