Help TV is 4 years old.  It broadcasts shadows behind all text.  it also has a yellowish hue to it on the top and bottom of the screen.  It is like a belt has been tightened around the picture and it is squeezed in.  Not sure what is up - any advice is great thanks

I HAVE A RED SHADOW RED HUE WHATS WRONG?

Focus and screen control box / remove front bottom panel there you will find it / it has 3 controls on top 3 on bottom top are focus for RGB tubes bottom controls adjust screen drives for RGB.

Your best bet is to get a good TV Repair guy out to your house, that has the Sony Service Code Manual for your set. The TV Tech can access your Service Codes and clear that message out, and possibly make some adjustments that can eliminate the yellowish hue.

The yellowish hue could also come from smoking in the house or burning candles. I have 2 friends that still smoke and had the same problem with their Rear Projection Sony set. When the tech took their set apart he found the brown tar & the soot from the candles had covered the lens and much of the lamp area. They ended up getting a new set because of what it would have cost them to fix & clean the old one up.

There are at least 2 or 3 fans that pull air into every Rear Projection set. The air is pushed out the back of the set to keep it cool, so if they are sucking in dirty air, it will cover the electronics very quickly and greatly shorten the life of the set.

This is not as much of a problem for the newer "Flat Panel" (non-projection) sets because they usually do not need fans. They just let the heat rise throu the vents in the top of the cabinet.

Yes to allthe probleis the convergence IC'S

your vertical ciruit is malfunctioning

Hi JimmyDeps

If there is a yellow hue I would guess that this a LCD TV right ?

Which means that the blue LCD has gone and will have to be replaced.

The convergence circuit is your problem and most times with this model the convergence power supply bd. is the problem.

You may have placed something with magnets near the bottom of the TV screen. Magnets will distort the electron beam in their vicinity. Move whatever you have there!
"de- gaussing" is the process of de- magnetising the shadow mask in the tube, it occurs automatically at switchon.
If removing magnets/ relocating TV / switching on and off does not fix the problem, it's time for professional intervention.

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

I have the same problem and was told by a technician that I need to replace the light engine. Probably around $ 700.00.