Question about Sony KP-51HW40 51" Rear Projection Television
Your TV most likely has one of two possible problems.
Problem #1: Convergence Chip Failure ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips double images with the red in myKP-51HW40 - 2c07611.png should be replaced. This is a common problem.
You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.
Problem #2 CRT Fluid is Cloudy
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.
Picture of a set that needs the fldouble images with the red in myKP-51HW40 - 65af323.jpg.
TV set after fluid change
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.
Posted on Feb 22, 2009
This is a typical problem for projection tvs of this age. There are two convergence integrated circuits on the main power board that have failed. The parts are easy to obtain, but the installation requires that the power board be removed and the old parts are replaced by unsoldering the old and soldering in the new.
Posted on Feb 19, 2009
Socrates, You too. I had it happen once a week ago when playing a DVD. My daughter played with the wires on the component connection to the TV and it went away. Then all of a sudden it cmae back yesterday and has been same way since. Red blurs on images to create two; one normal other red ghost. Anyone know the fix. Oscars this weekend and want to watch it in HD. Please help!!
Posted on Feb 18, 2009
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