Question about Sony Televison & Video
Are you sure you have sony kp53870? my kp53870 don;t convergence menu!!!!
Posted on Jun 20, 2013
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Posted on Jan 02, 2017
SOURCE: Distorted image and color
sounds like the convergence ICs have failed. Will the red and blue move in all 4 directions when you try to adjust the convergence? If not the convergence ICs are bad replace both of them also check the resistors that power the ICs as they may be open as well.
Posted on Mar 12, 2008
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
Go to this Blog. It "should " solve the problem.
Really, Really simple, do it your self solution !!
Instructions and pictures included :D
Ken , the poster of that Blog writes........
"The problem is with the convergence via the voltage on the
color ray gun tubes that get out of adjustment.
They are also known as retrace lines."............
This blog covers many makes and models with many
issues solved, just with that one solution
Give it a try, it's FREE and SIMPLE :D
Hope the blog helps you also :)
Posted on Mar 12, 2009
you will need to replace the two STK392-560 ICs and also check the 4.7 ohm 1/2 watt resistors and the six 3.5 amp pico fuses.
Posted on May 06, 2009
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