Question about Sony KP-53V90 53" Rear Projection Television
I HAVE SONY KP-53V90, THE TV HAS 3 PICS ONE IN BLUE,ONE IN GREEN,ONE IN RED.HOW CAN I FIX THIS PROBLEM,
TRIED FOCUS FUNCTION IN THE MENU SCREEN WAITED FOR IT
TO FINISH.AFTER DONE STILL DID NOT FIX THE PROBLEM.PLEASE
SUGGEST ANY REPAIR PROCEDURES. THANK YOU FOR THE HELP
AND YOUR TIME. GOOD DAY
Posted by Anonymous on
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 yoHAVE 3 PICTURES,1 IN BLUE, 1 IN GREEN, 1 IN RED. - 2c07611.pngnce 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 28, 2009
In the menu functions, try and reset all settings to factory. Have you moved this set recently? if you have you may have jarred the 3 projector lenses loose, in which case you need a repair visit.
Posted on Sep 05, 2008
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Posted on Jan 02, 2017
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