Question about Hitachi 53FDX20B 53" Rear Projection Television

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53FDX20B The picture became really blurry and has strong red and green coloring...

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I would start 1st by checking all resistors ie.
RK43 2.2 ohm - 2W
RK47 1.5 ohm - 2W
RK51 2.2 ohm - 2W
RK55 1.5 ohm - 2W
RK59 2.2 ohm - 2W
RK63 1.5 ohm - 2W
If I were you I would also replace the convergence chips. From the above thread it's clear that they are of different quality so they may last different lengths of time (B&D is a good place to buy good quality ones).
I found a free pdf service manual for 53FDX20B on a Polish web site: http://instrukcje.elektroda.net/main1750.html
other models try here: http://www.webtronix.ca/hitachi/index.htm
http://www.asm-service-manual.com/List/Hitachi%20List%20ASM.htm
Download pictures from my repair (Password: delirious).
http://www.uploading.com/files/HGGLJLXC/Delirious.zip.html
Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929

Posted on Feb 06, 2008

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Posted on Jan 02, 2017

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AFTER CLEANING BOTH THE MIRROR AND THE THREE LIGHTS MY PICTURE IS MUCH BETTER. HOWEVER STILL NOT AS CLEAR AS WHEN NEW. WHILE I HAVE THE BACK COVER OFF & THE TV ON , THE BLUE AND RED LIGHTS ARE CLEAR...


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LEFT SIDE OF PICTURE IS BLURRY AND COLORS DISTORTED


Does that set have whats called a color wheel, if so that maybe you problem, and replacement is how you fix it.

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There is too much red in the television


your red convergence circuit is defective and requires attention

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I would say the crt's are at the end of their life.

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1 Answer

I have a Hitachi 53FDX20B and the picture is looks stramge


It is not your Picture tubes that are bad, it is your Convergence IC's. The IC # to use is STK392-180. These are better than the originals, also invest in these resistors: 1.5 ohm 1w,,,1.8 ohm 1w,,,2.2 ohm 1w. (watt). I would by 4 each. Your soldering skills will come into play so roll up your sleeves and go to work.....Good luck ! and let me know how you do.

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Blurry and colors are seperated red green white


if you are viewing from a projection tv, chances are you have to go thru the menu of the tv to 'picture tuning'. here it gives you different things that could be fixed. one to look for is 'lamp alignment'. It should show all the colors and lines with directions to bring them into focus. This should fix the blurriness and 3-d red/green/white separations. hope this helps you!

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Split colors on screen


Replace the two convergence Ics they are STK392-110 if your model is the 53FDX20B you can get replacement Ics with installation instructions at the following link.
http://servicemanuals.vstore.ca/

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sounds like video card failure mode, 101..you a technically adroit person?

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1 Answer

Rca d61w20 dominate red & blue screen also very blurry picture


Red and blue present, but no green = bad green CRT is
best guess.Remove lower front panel = adjust screen and focus
controls for best pix..................T.

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