Blue streaks across picture

I have exact problem. Is anybody know how to fix it? tv is 4 years old

The Convergence Amp IC's are bad. You should call a good TV Tech for this repair.

Hp scanner 2300c
while scanning a blue or red line appears on scanned imajes

check for cold solder joints around the flyback transformer and a open pico type fuse very close to it. they are rectangle in shape and ususually the one in the middle of the three is the culprit. The problem is in the pincushion circuit

Hi,
Seems convergence out IC is fried in TV so it gives blue shadow.

Check out Convergence Out IC which you need to replace in TV, if you have enough experience of repair of big TV, necessary tools and know basic electronics.

Color issues are harder to solve without seeing the problem. It sound like the red amplifier on the crt board is bad. Is there any red in the picture at all? If not, that will be you problem

no picture on tv

Can you post a picture of the set. This might be a convergence problem. seeing the set will confirm this.

Thank you,
shuttle83

It is not a bulb. It is a picture tube. If there are thin blue lines across the entire screen, not just the edges, and the picture itself looks too blue, it means that the blue picture tube is being driven too hard. This could be because the blue screen voltage is too high, the boost voltage on the blue picture tube is too low, or the video output is leaky or shorted. If the picture has what looks like blue arcs and double images on one or more sides of the picture, it means that one of your convergence IC's has burned out and needs to be replaced. These are things that should be tested and serviced by a qualified tech, so allow an experienced tech to handle it for you.

you have a convergence problem.. If you understand how this works then you can go into the set find the convergence ic's and replace them and sometimes you need to do some alighnment as well. Its always best though to let a service tech do a job like this as he will have all the proper equipment to adjust and troubleshoot the set Good luck