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Hello everyone. My dad bought a KP57WV600 tv that had a known convergence issue with the red CRT. I've since repaired that problem by adjusting the voltage pot for the red crt. After that though, the picture still didn't look right. Things that were supposed to be blue were greenish and things that were supposed to be white were yellow. Because of that, it appeared that blue CRT was not on. I opened up the back of the TV and sure enough, it wasn't. To make a long story short, I do have voltage to the CRT drive board, but there are at least 2 blown components on the board. So, I'm assuming at this point, the board is blown and this is the reason the blue CRT is not coming on. I'm an electronics student in my final semester at school, so I know a little about what I'm doing on the boards . However, one of the components that is blow on the board, I've never seen before and do not recognize the schematic symbol. I brought the schematic to one of my instructors along with a picture and he said he thought it was a indicator lamp. In my schematic manual, the lamp is listed as NL9302 and says 80V below it. The other component that is blown is the 1k, half watt resister that is in parallel to the lamp (R9323). The 1k resistors are easy to get a hold of. The lamp on the other hand, I'm not sure where to get it and even then, I don't know what amperage it needs to be.
So A) does anyone possible have a good CB CRT drive board p/n 1-685-260-11 board I could buy or B) does anyone have an actual part number for that lamp and/or know where I can buy that lamp and what the correct amperage is on it? Thanks a bunch!
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Tv have a problems known as a convergence picture problems,it is dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?Yes,than the tv convergence board it is dead.This tv convergence board must be repairs,u must require to replaced components parts like 2 STK convergence ICS and some or all of it resistors too.To fixed the the tv convergence board to solved the tv convergence picture problems.The shop,will cost like $300-350 for parts and labors.
The convergence board is what is bad, the Convergence IC need changed out on the convergence board, or the convergence board itself, and you you can also check for blown fuse on the convergence board. The repairs are going to run around 450 on getting it repaired. The red, green, and blue color are alien through the menu, but if they don't line up, it needs repair.
Tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows picture or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
Ur convergence it dead.Do u know how to solders? Tries these websites. Tv repair World.com or Tvrepairkits.com have it.Buy a convergence kit used what in that kit ur tv well get back to normal.The shop will cost u $300 for parts and labors.
Its either blue tube or bad componet on blue CRT board hertes how to know disconnect Blue CRT board connect to neck of blue tube turn set on see what happens if set come on and plays then this lets you know if it is a problem with tube/video ic on crt board. If set shuts back off different problem.
At the bottom of the page there are comments from users. There are several users that explain how to take off the front panel and where things are located. The model KP57WV600 is different than the pictures in the blog, including the fact that the order of the red, green, and blue adjusters are different.
If you try it and it's not successful and you still want to try to replace the CRT yourself, google KP57WV600 service manual and you can buy it for $9.99 and download it right away.
u and i both need blue crt tube.i also need convergence fix...u probably will as well .just had repairman over and tubes will be hard to find ...unreal tv is only 4 yrs old /03
. However, one of the components that is blow on the board, I've never seen before and do not recognize the schematic symbol. I brought the schematic to one of my instructors along with a picture and he said he thought it was a indicator lamp. In my schematic manual, the lamp is listed as NL9302 and says 80V below it. The other component that is blown is the 1k, half watt resister that is in parallel to the lamp (R9323). The 1k resistors are easy to get a hold of. The lamp on the other hand, I'm not sure where to get it and even then, I don't know what amperage it needs to be. 
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