Question about Projection Televisions

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Got a Lg television model: runz60 witch I'm trying to repair and its nuts. The picture will go to blue and pink off and on whenever it likes,it seems to have mind of its own. I have tryed everything and no solution. Im told this is a common problem please help.

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I have not worked on your model of set, but have had similiar faults on other types.

I have had colour shifting from weak CRT's in projection sets.

In the video processor areas, I have also had electrolytic capacitors becoming thermo sensitive and becoming unstable.

Try using a heat gun and cooling spray (bottled liquid air for freezing) to check for thermo sensitive parts. Start by cooling and heating the capacitors in the various areas that deal with the video path.


Jerry G.

Posted on Apr 12, 2008

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Did you check the ICs?

Posted on Apr 12, 2008

  • Ginko
    Ginko Apr 12, 2008

    Check the convergence ICs, they may need to be replaced.

  • Ginko
    Ginko Apr 12, 2008

    Post your exact model here so that we can provide more help.

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1 Answer

One yellow, one pink, and one blue spots appeared on my tv screen.


The set if projection which model here is, has arced and now each of the three picture tubes used has a tiny permanent burn mark on its screen.

That is what you are seeing, the set uses three picture tubes with screens like the old tv sets===the coating has been burnt in each, want to prove it, remove rear cover and cover any one of the three lens and that mark on one tube will go a way.

Not fixable.

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Change convergence board or convergence ICs, test them.

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uses a single convergence chip---stk393-110
6_7_2012_3_16_11_pm.jpg

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The picture is is now in pink


If Sony KP-51ws510 it is an common issue with the picture tubes but there may be a simple way to adjust something in the set to correct this--these had problems with the 3 picture tubes where it can go to excessive red, green or blue.

Confirm model and issue and I will assist.

It only requires a screwdriver and the back does not have to be removed in this case.

Mar 20, 2012 | Sony KP-51WS510 51" Rear Projection...

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Colour on tv screen


It sopunds like you have a color convergence problem, if this is the case and the CRT tubes are ok then you are looking at about $500 to repair the TV.

Feb 13, 2012 | Projection Televisions

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I have sony KP-65WS510 TV, started reporting convergence problem and showing pictures 3 different color. After I talk to Sony Technical Support turn OFF and ON method for initial trouble shooting.Now TV...


Tv have convergence problems first,fix the convergence board first.The tv have mis R,G,B colors lines alignment have 3D pictures effect.The tv convergence board have totoal dead 2 ICS convergence ICS and some or all it resistors.U know how to do basic's soldering?U have tools like a soldering iron,desoldering pump or solder witch and solders?Tries websites like Tvrepairworld.com,Tvrepairkits.com to buy ur tv make and model of convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.Now,the projection lamp, might need to replaced too,after fixing the convergence problems.

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1 Answer

Blue haze in picture you see like a blue shadow of the person in the picture?


you probably have a convergence issue. there are many posts with repair and photo help. just fixed mine today by replacing the convergence chips and a pico switch. picture is better than ever. try searching "convergence chip" with your model #

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2 Answers

Hi LG RZ37LZ55 The Ir sensor in the TV has stopped working. Does anyone know the part number and where i could buy one.


I need the correct Model# the one you have posted list different TVs Look on the Back of your TV for Model/Chassis#

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1 Answer

Sony KP-53HS30 started with Pink and Blue picture and timer blink


You probably have one or more bad CRT's causing the problem. Due to the age of the set and cost of repair, I would not invest the money needed to repair the set properly. I would replace all three CRT's and the cost would run over 1000.00 up to 1300.00 .
With the cost of new sets today, you could replace it.
I hope this helps,
Skyassoc

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1 Answer

Tv picture


http://esupport.sony.com/perl/news-item.pl?news_id=24
and try this
Sony Picture tube recall
http://esupport.sony.com/perl/news-item.pl?news_id=24
Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700

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