KP48S6constant blue shadowing on all images and text accross TV.

These sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

• Screen Looks Distorted/3D
• Colors wont align
• Screen may look distorted
• No Audio/Video - makes a chirping sound.

Problem #2 CRT Fluid has clouded over. Symtoms

• Dull looking screen
• White looking sceen
• Halos around objects
• Red/Orange looking

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

I had a similar problem with red halos around images on my Hitachi rear projection TV. The problem was that the red convergence chip burned out. I replaced that and that fixed the problem. I found several forum posts on similar symptoms and fixes for Sony rear projection TVs by searching for "Sony rear projection convergence problem." Likely you've already tried the auto-convergence function for your set, if it has that.

what are the colored circles youre talking about?

You have 2 distinct problems that should be addressed separately. Please repost the Samsung problem. I will address the Sony problem here.

If the "shadow" makes the picture seem somewhat of a 3D one, the problem is with the convergence circuit. This could be as simple as bad connections on the pins of the convergence ICs or defective ICs. If you can solder and would like to attempt the repair, update this and I'll provide more details and instructions.

Dan

need to change both convergence ICs STK392-560. you can get replacements at the following link with free instalation instructions with pictures.
http://servicemanuals.vstore.ca/

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images. 

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Unplug the TV from the ac wall outlet for about 4 minutes then plug it back in and turn it on. If it still has a double image then tell me if it's affecting the menu screen from the TV (not the cable menu). And is the double image in red and blue?

C-Dog

convergance ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

call tech ...suggest to ck. blue coolant..and c-chips.

Check you cable box compared to another tv.  The pisture may need adjusting take off front panle and use the screws to adjust pic  it could get better of worst be carefull