Television and Home Theater

i have a 2004 1080i samsung 47 inch projection # HC-P4752W  the blue has bowed down from the top of the screen. i have heared it is a convergince problem. if this is so what do i need to do to fix it? and could you get me the part number so i can order it to fix the problem?

thanks

joshua

i replaced both ic and can get into the setup mode or service mode started getting all the lines to line up.

but here is the problem. alone the right and left edges of the tv it seems i can not get the blue lines to move far enough to the left to align with the green lines.

also the green lines will not move far enough to the right to align with blue lines... now i can get red to move far enough to align with the green or blue

i just having problems with gren and blue...

Hey there, new to the site...  Having an issue with my tv and need some help bad.   Not real tech savvy, but I believe it is a rear projection about 56" tv (manual is missing at this point).  The TV is about 5 years old max and several times a day the picture will suddenly 'expand' and hten shrink back to normal, then 'expand' again.  It does this for about a minue or two and then just shuts off.  Any thoughts or suggestions on how (if?) to repair this issue???