Question about Hitachi 53UWX10B 53" Rear Projection Television

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Sanyo DS25320 TV - Screen is black on top 2" then picture squashed downward for another inch or two. What is the problem and can it be fixed? Furthermore, is it worth fixing? (Purchased in 2003 or 2004.) Thanks in advance. skippy2brian

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This will be in the vertical circuit. Probably a leaky capacitor. A tv shop should be able to fix this for around $75-$100

Posted on Mar 13, 2009

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The picture seems to be sliding down the screen of my Samsung HCN553W, I can still watch it except for the top 4-5 inches in the top left corner, it's black. Does anybody have any idea what it could be?


Ur tv it beginning to create and will develope a simtom call "Convergence alignment"These problems will delope in to the picture will have shades of colors like red or blue shadows,the picture bows in coners and colors will misaligns,the picture look like u watching a 3D movies,and the tv sometimes,just die and making chirpings sound.This problems very common in DLP tvs,it will develope just sonner or later that all.The covergence problems,the only way to fix are to take the tv aparts take out the Pc board call The Convergence board.Change the 2 STK convergence ICS,and some or all it supporting resitors and pico fuses.

May 06, 2010 | Samsung HCN553W 55" Rear Projection...

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Center bow on picture top and bottom with 1" black showing


Projection TV2_bing.gif sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV2_bing.gif makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 06, 2010 | Toshiba TN55X81 55" Rear Projection...

1 Answer

Projection tv has 2 pictures split with 8 inches of black


IN THE MENU GO TO COLOR CONVERSION OPTIONS AND TRY THAT ,,ALSO TRY NEW CONNECTERS

Apr 24, 2009 | Panasonic PT-52LCX65 44" HDTV

1 Answer

BAD PICTURE, DISTORED, MOSTLY ON THE EDGES, BUT THE BLACK LINE ON TOP IN HIGH DEF CHANNELS IS NOT STRIGHT ACROSS, IT BOUGHS DOWN LIKE A "U" SHAPE


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
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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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.

2c07611.pngSolution #1

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.

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TV set after fluid change

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2c07611.pngSolution #2


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.

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1 Answer

Sanyo 42" 1080p, picture doesn't fit on screen


this is normal and this feature is for wide screen programs! normal shows and games will lose part of the top of the screen sides and bottem because it zooms in on whats in the middle of screen! hope this helps

Dec 07, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Picture jumps


you might have bad caps or the vertical output integrated circuit, try to locate the vertical ic and check the surrounding areas for bad capacitors.


good luck


caypianan@yahoo.com

Oct 23, 2008 | Hitachi 53SWX10B 53" Rear Projection...

3 Answers

Panasonic 47 inch Projection tv PT-53WX42F


Sounds like your convergence chips are going. Unless you are real handy with soldering iron I would suggest having a tv repair shop service it(probably cost $200-300). If you are handy then I believe the chips you need are Sanyo STK392-110. There should be 2 of them. be careful if you order them online, there are lots of chinese knock-offs out there.

Apr 19, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Picture went out on Akai


I have the solution.  Call me  910-8936663

Oct 15, 2007 | Akai PT5492S 54" Rear Projection...

1 Answer

Weird lines on the screen


Needs convergence circuit repair----give complete service # off
back so I can get part #...........T.

Sep 16, 2007 | GE 46GW 948 46" Rear Projection Television

2 Answers

Color problems at top and bottom of screen


Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:
http://www.eserviceinfo.com/
http://www.digitalhome.ca/forum/search.php
http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 17, 2006 | Hitachi 42V715 Rear Projection Television

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