I Have a Toshiba 45" Inch Big Screen TV 8 years old and has a blue line at the bottom and blue above peoples heads. It remians constantly and can not be reset with focus feature or with convergence reset.

I have a few questions and A VERY GOOD IDEA OF WHAT IS WRONG WITH YOUR SET.

Go into the customer menu and select Convergence: if the blue is skewed OR WILL NOT MOVE IN SOME DIRECTION, the set has a bad convergence IC.

Depending on WHAT YOUR MODEL NUMBER IS but most of these sets use TWO of the STK-392-110 CONVERGENCE IC's.

If you have some skills at soldering and are handy I can give you general instructions and also tell you what you will need

2 new STK-392-110 CHIPS
1 good soldering iron
Solder
de-soldering braid or wick(to remove solder)
Some liquid solder flux (used to un-solder and then when re-solder new parts in.
Some heat sink compound(applied to the back of the new chips before installed)


THE ABILITY TO GET AT THE CHIPS---I can if you want tell you what is involved here--this is really the hard part on most of these sets--yes, each chip does have 18 pins that have to be unsoldered/ soldered in.

Let me know if you are able to do it or if you HAVE ANY QUESTIONS OR NEED ADVICE--I am here to help..

Regards, SD TECH

Hi.
It looks like a convergence problem. When you get a slightly arched line at top and bottom the ICs are defective.The convergence ICs must be replaced.
Here explained how to replace convergence ICs.
The repair must be done by a trained technician.
Parts available here: Encompass Parts Distribution.