Question about Sony KP-57WV600 57" Rear Projection HDTV-Ready Television

1 Answer

Crt tube removal

I would like to remove crt tube myself but understand their is high voltage withen the set even when unplugged......I would like to know how to disable voltage in order to remove tube and it's components in order to send to company for replacement.If I am able to do this part myself it would save me quite abit in labour

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  • rowdyroddy Jan 22, 2008

    wow..you wont believe this but all who have retrace line issues(wavy lines,solid colour screen)..........DO NOT CHANGE CRT TUBES...........ALL SONY REAR PROJECTION tv's have this issue and the fix is as easy as a screwdriver.....go to somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html........and works for all colours.........

  • rowdyroddy Jan 22, 2008

    WOW .fixed tv myself.........unbelievably easy.....NO CRT TUBE NEEDED!!!!!. ...All I needed was a SCREWDRIVER.....and so will you..If your having colour problems....my problem was blue lines, then solid blue screen, then shuts off......7 blinks..had repair man over and he said 600-750 to fix ,,need new tube.....NOTE TO ALL SONY REAR PROJECTION TV OWNERS.........DO NOT CHANGE YOUR TUBE.......the problem lies withen the crt tubes voltage (most common cause is a simple power surge!!!).. this problem is well known by sony but they will never tell you a simple turn of a screwdriver will restore your tv's colour!!.regardless which tube (colour) is in question ....when tv is unplugged ,,, voltage is not an issue.... for a detailed fix for your model go to www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html .....read the testimonials....especially the post by paul t dated 12/26/07....describes how to for our specific model.now i can call repairman and make my day ..!!!!!!!!!,,, my qustion to him from the beginning was if i have a blue screen ... the blue crt tube must still be working???...he said no....but i was right and he was looking to take me for a costly ride....If your reading this today I gaurantee you will be smiling large tommorrow!!!

  • rowdyroddy Jan 22, 2008

    read above for da fix.....and make your day.!!

  • rowdyroddy Jan 22, 2008

    crt tubes are not the problem so DON'T CHANGE THE TUBES..it's a voltage issue which can be adjusted with a screwdriver!!!!!.........it's that simple ...just go to www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair ....then follow simple instructions and your tv will be restored ......this is a common problem that sony is well aware of but will never tell you to fix with a srewdriver.....but that is all that is needed!!!!..my problem was blue lines then solid blue screen then shuts off with 7 blinking lights!!.but after simple turn of philips screwdriver all is good again....way to easy ....repairman said i needed new tube ...I'm gonna enjoy calling him today.lol...........also voltage not an issue to adjust retrace lines as they are called...just as long as tv is unplugged while adjusting the screws!!!!...........this is my good deed of the day !!!.so save $$$$$ and do it yourself....it's really easy....this is for all sony rear projection tv's!!

  • rowdyroddy Jan 26, 2008

    i have added to the manuals section and in there is a how to on crt removal/replacement

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  • 42 Answers

There is not that much high voltage on the projection tubes

Pull the red annode lead from the flyback transformer
Careful not to touch the end of the red lead

Brush the lead across the metal frame that the crt was housed in and that should disapate the hv
If you are not sure it is gone then stick it on the metal again

Remember the tv mus be unpluged befor you attempt this

Good luck

Posted on Feb 13, 2009

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1 Answer

What is "flyback" on tv monitor


the "flyback" is the VERY high voltage transformer that powers the CRT through a cable that plugs into the CRT inside the monitor case. Don't try unplugging, even with power off, as it has to be discharged to ground to remove risidual voltage, like a capasitor. This voltage is about 35,000 vdc.

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Sounds like a cold solder joint. Unless you have knowledge of electronics and high voltage, I wouldn't try to fix it myself. A honest TV repairman should be able to fix it. And when I mean high voltage, I mean 2000-3000 volts is average with a CRT TV tube.

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make a place to work on tv, unplug from outlet, remove all screws from back of set,bag screws. remove cover.red wire coming from the CRT, Cathode Ray Tube, top center of tube, goes into High Voltage thingy. bottom plastic knob is labeled screen. That is as far as i have got. Some people have had luck adjusting this.

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1 Answer

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If the line is horrizontal then the fault is in the vertical deflection circuit.
It is not worth repairing an old CRT monitor, unless you have electronic knowledge. I do not recommend repairing CRT monitors yourself, because there are dangerous high voltages inside these monitors, even though the unit is unplugged from the main outlet. The CRT tube will hold high voltages for weeks even though the monitor is turned off.
I suggest you put your money towards a LCD screen, they are inexpensive.

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I have a Samsung rear projection tv, the picture is faded and the colors are not crisp or clean cannot watch it like this what do you think the problem is?


If this is a CRT-type rear-projection TV, the CRT coolant fluid is probably broken down. It's supposed to be clear, but after a long period of TV operation, it turns a yellow-brown color. If you unplug the TV and remove the back, you can look into the tops of the three picture tubes. They should be a clear red, green or blue color, with no yellow-brown tint.

CRT coolant can be changed, but you need to be very good at mechanical work to do it. Besides the safety considerations (picture tubes and other parts may carry a high voltage charge even when the set is unplugged), spilling broken-down coolant on electronics is usually disastrous, so you have to be very careful.

LCD panels used in projector applications may lose contrast if they are overheated (this can be caused by failure to keep the vents clean as recommended in the owner's manual).

You would have to provide your set's model number to get more specific information.

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1 Answer

Moniter display problem pls help me? single line in the moniter centre ?


If the line is horrizontal then the fault is in the vertical deflection circuit.
It is not worth repairing an old CRT monitor, unless you have electronic knowledge. I do not recommend repairing CRT monitors yourself, because there are dangerous high voltages inside these monitors, even though the unit is unplugged from the main outlet. The CRT tube will hold high voltages for weeks even though the monitor is turned off.
I suggest you put your money towards a LCD screen, they are inexpensive.

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2 Answers

KP-61HS10 Convergence IC Replacement


yes they can hold a bit of voltage so a high voltage probe will discharge them nicely, something you might not have but can get from ebay if you are going to do this alot. you don't need to be concerned about this though as you won't be doing anything with them so don't touch..
just be carefull when desoldering these stk's use solder wick and patience even a pro can take an hour to desolder these so be carefull not to lift the trace or the situation will quickly get worse. don't adjust these tubes as they are set to the correct alignment already.

Jan 02, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Tv makes whistling sound from rear and sparks when pluged in


By the sound of it your set might have a high voltage leak on the high voltage transformer ,the crt has a broken neck or shorted filaments,all 3 possibilities should be handle with care because of the high voltage involved,if you are familiar with tv service you can remove the back and take a look at the neck of the tube to see if it arks,remove the back cover from far away (12 feet)and then plug it in,if the tube is bad you will be able to see it but if the leak is in the transformer you might not see anything while is making the noise.If you are not too familiar be safe and call or take the set for an estimate.If the tube is bad you will need to buy a new tv.

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1 Answer

Goodmans k2850t 28in


roon I would contact the factory or mainm office at goodmans as Ive seen this problem myself first hand a long time ago with a Zenith set and maybe goodmans needs to know about this as its not only dangerous with the breaking tube but the High voltage shutdown cicuit may not be working! Whats happens is that the High voltage will climb up so high that the High voltage will arc from the yolk coil on the neck of the crt to the inside of the tube and break the tube!!!! Zenith had a recall even 10 years later as they replace tubes and a capacitor that cause this problem to happen. One more possibility is that when the set was built they over tighten the yolk and as the set heated up and up over time the neck expanded and broke the tube. Any case let us know what they do for ya. Good luck

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