Television and Home Theater

can someone send me instructions on how to replace dm board on my tv. also is this ware i find those bad capacitors?  thanks   [email protected]

I got this TV used a year ago. It worked perfectly after I replaced an IC in the SMPS. About a month ago, the picture suddenly started exhibiting several different problems. There is noise throughout the picture, in a mostly horizontal pattern. There are vertical streaks  above and below anything bright in the picture. When the video fades to black during a scene change, all of the noise and streaks go away. The picture looks just as bad with the TV's internally generated test patterns.

Im trying to found out how to adjust the focus and screen. Ive already opened the back side to reveal nobs