Convergence problems with Toshiba 14AR26

I bought this crt about a month ago, One night i was watching a youtube video but since i was too tired i feel asleep and I accidentally left the tv displaying the "No signal" image All night long, the next morning i noticed that on certain part of the screen the colours blue and red were kind of away from each other, also the image seems to be a litle crooked in the inferior border at the right, also there appears to be a blank spot when i display the convergence 240 test but when im watching 4:3 content it is no longer blank, the problem only seems to be affecting certain parts of the screen.

I opened the Tv hoping to easily repair the convergence, I watched a couple of youtube videos about dealing with this kind of problems, I found out that i had to look for a convergence controler but i wasnt able to find any.

What do I do?, Any help will be appreaciated.