Question about Sony Grand WEGA KDF-55XS955 55" Rear Projection HDTV
My Sony vega remote will only turn the tv on(power button works). None of the other remote features (i.e. vega gate, volume, etc..) will work. Also, the TV panel will not work either(vega gate, volume, channel)
When the TV turns on, the screen is full with all verticle color lines, very thin lines, on the screen, like a rainbow of colors in a repeating order.
When the cable box connected, i can see the channel image(movie, show, commercial, etc... faintly through the colored lines.
From the trheads i've seen, i guess there are a lot of sony rear projection tvs with a few problems. Considering that my tv is displayed a picture, lines, colors, etc... are the bulbs fine and am i dealing with a bigger issue
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Posted on Jan 02, 2017
these tv's have a problem with bad crt's you could try to replace the red but a better choice would be all three
Posted on Oct 31, 2007
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 are bad and 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 fluid changed.
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 due to failure of convergence out ICs that need to be replaced in D board.
If you are comfortable with TV repair let me know to provide you technical info to fix TV.
Posted on Apr 17, 2009
The pictures show the result of a bad terminal input board. You can verify this by checking the inputs. Connect devices to the board and try different inputs. You will most likely find this problem on the tuner and component input were your DVI and composite video will be ok. If it is the same on all inputs replace the A board
Posted on Jul 09, 2009
Thats caused by a convergence failure. The Sony type 1 convergence repair kit from www.tvrepairworld.com will usually correct that issue the kit contains the components and the CD with repair instructions so you can repair yourself.
Posted on Dec 21, 2009
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