Television and Home Theater

I have a RCA D40W20 40" projection tv monitor. I don't have the origional remote and when I watch a channel that has trailors on the top and bottom, ESPN Scores, they are are about 80% cut off.

This set has different formats to switch from. 4:3, Zoom 14:9, Zoom 16:9, Zoom 16:9 ^/v, Cinerama, regular mode 16:9.

Somehow I am stuck in one of the zoom modes because of the above situation. The manual says the left/right arrows on the origional remote will move between the different formats.

Does anyone know of a RCA universal remote that would have this function?

I have a Sony KP-61HS30 that I am going to replace the D board completely.  Are there any specific steps that need to be taken aside from just hooking the new board up? 

I have a gateway LCDFPD1730 that makes a hiss or Hum when it is turned off. I removed the back and I am trying to tell where the noise is coming from. I used a mic connected to the computer and the noise seems to be coming from the largest black cap on the middle of the board. Should i try checking or changing the cap first.