Question about Panasonic PT-53TW53 53" Rear Projection HDTV-Ready Television

1 Answer

Red, Green, Blue curve upwards and cast shadows

The scrolling banner scrolls on bottom normally but the words starts separating upwards and curving along about 3" above the normal scrolling and then starts to come back down towards the original banner. Also cast shadows on images. When TV guide is on, it is hardly readable because of the shadows.

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  • 4 more comments 
  • elvispre318 Mar 15, 2009

    Need assistance on what part to change and where to get the part from. Please help.

  • elvispre318 Mar 15, 2009

    I've ordered the two ICs, #STK392-110 and resistors, (repair kit) for PT-53TW53 panasonic. I've been trying to remove the board TNP2AHO46 where the ICs and resistors are mounted but having trouble disconnecting some cables or wires. I do not have a service manual and have one on order. Can someone help me via this medium please? If there's a site I can go to to download or just view a diagram, that will be helpful. If not, text messages will be fine.

  • elvispre318 Mar 15, 2009

    Haven't had a chance to change out the ICs and resistors. I've ordered the kit but has not arrive yet. Been trying to remove the board in order to remove the old ICs and resistors with no luck. Asking for help on this.

  • elvispre318 Apr 11, 2009

    Problem not fix.

  • Anonymous May 10, 2009

    same as above

  • randmford May 14, 2009

    Blue curve upwards and cast shadows on the bottom of the screen

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  • 40 Answers

That sounds like a typical Convergence IC problem..

http://i.ehow.com/images/GlobalPhoto/Articles/4575598/ConvergenceICs_Full.jpg

this is a picture of what typical convergence ics look like

Posted on Mar 12, 2009

  • Robert Short
    Robert Short Mar 16, 2009

    you should really use the chat assistance it would keep you from damaging your tv..

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1 Answer

I have a Phillips 60" rear projection TV. recently


Tv have a problems known as a convergence problems,it is dead.The tv convergence board it is dead,that why ur tv picture are R,G,B colors lines mis alignments,have colors shadows picture or 3D picture lood alike?The tv convergence board require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop will cost u like $300-350 for parts and labors.

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Yellowish green hump/curve at bottom of screen. Blue is at fault


Easy one of the two convergance chips
has failed .they cost about 10-30$ etch
so dont let them over charge you ,if
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Jun 26, 2009 | Toshiba 61HX70 61" Rear Projection...

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Curved/warped and completely out of convergence Image


Sounds like you need the convergence amplifiers replaced. Cost approx. $300.00 for expert to repair.

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Shadows and text curved. Double images


The convergence IC's need to be replaced. The generic part # on them is STK392-110. This is not easily done by yourself.

Apr 09, 2009 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Shadow images and scrolling banner curves upward and back down.


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.

Mar 15, 2009 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Everything works but looks animated with green and red


Sounds like a classic case of a convergence problem. If you give me a model number and a manufacture i can help your further.

Thanks
Tim Nolan

Sep 24, 2008 | Projection Televisions

1 Answer

Green cruve line


Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Uh oh... the colors are curved and wacky


replace the amplifier IC chips for the convergence.  part # stk392-???  could be from 040 to 120..  90% chance that'll fix it.

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