Question about Panasonic PT-53WX52 53" Rear Projection Television

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Tv doesnt work

I just changed my convergence amplifiers on my tv and now when i turn it on, it switches off after a few seconds. Any help?

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You either have faulty convergence chips, faulty soldering, or you forgot a wire.


FYI - 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.
tv doesnt work - 701cb04.jpg

f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Posted on May 14, 2009

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1 Answer

TV turns itself off after being on a few seconds, ...


Hi,
Three time blink means tv got problem in convergence output circuit, replace convergence output ICs to solve the issue.
Thanks.

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Sony KP-57WV700 Convergence Repair Failed - TV won't stay on


Sorry ur convergence ICS are shorted and dead.Because u put in solders and take out solders to many times.The heat of ur soldering iron,and the electrostatics will kill the ICS,if keep putting heat in the ICS legs alots times.Buy the convergence kit again,replaced every componnents in that kit to ur tv.Because,the kit been research and put together.What the most common componnents that burn and dead in the convergence circuits.

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1 Answer

Stays on for 2 seconds and switches off


The convergence amplifiers need to be replaced.
This set may have one big amplfier chip rather than two.
The chip(s) will be on a big aluminum heatsink.
There may be bad resistors related to these chips, as well as one or two fuses that are open.
I've replace many convergence amplifiers.
If you have good soldering skills and ac test fuses and resistors, you can do the repair yourself. Caution that even with the set unplugged, there could still be dangerous voltages present on some components.
Search this site for specific convergence repair related to your set.

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Projection TV is out of focus


Solution #1 posted on Feb 28, 2009 0%20stars_w.png
19a7683.gif Ecollier2012
Rank:guru_s.gif Guru
Rating: 91%, 106 votes
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
  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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

Convergence


Hello,
This is a sign that the amplifiers are on the verge of going out since it is able to exert partial control over the CRTs. I would suggest that you try manual convergence, follow the direction in the schematic diagram on how to do this. If this does not work then I would suggest either changing out the convergence amplifiers and all of  their biasing resistors, or having a qualified TV repair shop do the job for you.
I hope this helps,
Thank you,
Shuttle83

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1 Answer

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Hello billy218,

What is happening is that your convergence amplifier modules are beginning to go bad. These amplifiers are what amplify the signals used for convergence (how the RGB lights line up on each other) when they go bad the RGB lights tend to bow towards the center of the TV and the colors begin to mis-align. There are many sites devoted to doing the changing of the amplifiers yourself,however although these sites are accurate in give the instructions on how to change the amplifiers they do very little for actual troubleshooting and finding the underlying cause of the problem. In most cases its just that the amp modules have gone bad, but sometimes there is an overheating problem that triggers the damage. I would suggest having a TV repair person come to your place to check the problem and to fix it. The repair should cost about $250.00

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I would suggest to double check your solder joints. Since you mention that a resistor is overheating, you could have shorted 2 leads when soldering the STK ICs.
Try using a magnifier tool with magnification 2X to 4X to locate any possible solder defects.
Let me know if you need further assistance.

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1 Answer

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you may have a convergence problum if your convergence ic,s are shorted, you will need to check the convergence fuses in the power supply.

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1 Answer

Screen seems to flip


All the symptoms in your tv point to a convergence problem,the unit has 3 amplifiers one for each color,this amplifier IC's need to be replaced and then realign the colors,sometimes just by replacing the Ic's you are able to realign the color with the remote but sometimes they need to be realign from the service menu. You can identify the IC's because they are mounted in heatsinks and by its marking,in the front they have STK--- ---,6 numbers after the letters,their size is about 2.5 " long and 1.5" wide with a row of pins solder to the main board.If you are familiar with tv service this information will help but if you are not too familiar be safe and call for assistance from a servicer.

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