My 50v500a 50in. has a reddish tint to it.

If your pictures that have the reddish tint are taken indoors, the tint is likely caused by the lighting. You can set up a 'white balance" adjustment to fix that.

It looks like you're shooting indoors, with incandescent light. Your camera appears to be set for "daylight" white balance. It may have a setting for "incandescent", or may allow you to adjust the "white balance". If you wander through the camera's menu, there should be a setting for white balance.
You can also adjust the color balance in your computer after you've taken the pictures. Many editing programs exist.

assuming you gave checked the menu settings for the video out, I would say your plasma panel board may need to be replaced

Picture on tv has red tint will not change with color controls. ACL HITACHI 50V500A

replace light engine (optical block)

It is more than likely a convergence issue rather than a color issue.

first try adjusting the color-tint on the menu if this does not solves the problem you have a failing proyector and has to be replaced

Possible bad CRT....check video out on C board,video drivers on
A board.........................T.

Your light engine will need to be replaced as you have a LCD panel failure. Here is the link to the part number for the model 50V500 if you have the 50V500A it has a different part number. http://www.partstore.com/ProductDetail.aspx?ProductSKU=8286849&ProductType=PART&ModelID=374014