Question about Hitachi 53FDX20B 53" Rear Projection Television
If you have a color (red, green or blue) that is bowed inward from any side, then one of your convergence IC's has cracked loose or burned out. There is no way to fix that manually - the IC and possibly a resistor must be resoldered or replaced, and that should be handled by someone experienced in repairing and realigning convergence circuits.
Posted on Jul 15, 2007
Your TV most likely has one or more 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 changeHitachi 53FDX20B - 578ba6c.jpg />
TV sHitachi 53FDX20B - 65af323.jpguid 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 May 07, 2009
TV turns on automatically after being turned off for a few minutes.
Posted on Apr 18, 2009
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Posted on Jan 02, 2017
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