Question about Vizio GV42L 42 in. LCD Television

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Cathode ray tubes (crt) for a Sony Rear Projection TV Model# KP-65WV600.

Where to purchase green,blue and red crt tubes for above subject Tv

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  • fedupwilly May 09, 2008

    I have same issue Sony model # KP-65WV700, blue tube is bad.

  • Anonymous Jul 14, 2008

    i lost the whole picture what could it b i still have sound but no picture

  • ooyusuf Dec 24, 2008

    I have same complaint . green carthode ray for my sonny rear projection . where can i get it to buy

  • F1forHelp May 11, 2010

    what is the model number of your unit?

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We have a problem with the blue as well. Sometimes it is good, then it fades to green. Then it went out and back on again. Repair man said it is a bad HT Block and would cost $350 to remedy.

Posted on May 16, 2008

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Connecting my new samsung blu-ray player (bd-fm57c) to my toshiba theaterview tv.


I don't think that cord will work. HDMI carries video and audio signals, you might get video but probably no sound. You might as well try anyway though so here goes... The red green and blue plugs are your video and the other red plug and the white plug is for stereo sound. The yellow plug is just a lower quality video plug. So plug in the red blue and green plugs into the component video inputs on the TV then the red and white plugs into the audio inputs. DON'T plug in the yellow plug. If this doesn't work go to your local home theater store and ask for a receiver or switcher that will downscale high def HDMI to component video and stereo audio. You can probably pick up a cheap one for around $100. Good luck!

Mar 29, 2014 | Toshiba 50 Inch Big Screen Flat Tv Theater...

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SONY TRINITRON ONE COLOUR PREDOMINANT SCREEN


Sony Trinitron sets are of CRT [Caothde Ray Tube] types. The common fault seen in these type of TVs are any one colour predominant on screen wih sound OK. Either red, blue or green colour with some thin horizontal lines at about an inch apart will be seen on the entire screen. This is totally a display card problem, which can be seen pluged onto the picutre tube neck. There are three electron guns for every picture tube, which emits red, blue, and green beams, which in turn illuminates the phosphor on the screen to get that colour. If no emission from all guns, results in a blank screen, ie black screen without any disply at all. The three colour beams together produces proper coloured picture what we see on screen. These three gun's terminals are brought out by pins of the picture tube outside to which video signals are given in appropriate proportion to produce a TV picture. Normally, all these three pins are biased with a voltage of about 170 to160VDC+ve. Take one colour gun, as an example and and let me describe the problem.
Let it be a green gun. These guns are called cathodes of the picture tube. If it gets a voltage with respect to its grid, it will emit electrons according to the voltage applied to it. This is a negative process, that is, as the voltage at this pin drops, its emisson incresses and vice versa. If the emission increase, the colour with respect to that gun also will increase and gets predominant at the screen. So when we see a green predominant screen, there will be less voltage at the green cathode with resepect to the other two. If red colour is predominant, the voltage at red cathode will be less than the other two. If blue colour is predominat, the voltage at the blue cathode will be less than the other two.
We must find out the reason for this fault first. Assume that your Tv has a red predominant screen with some thin lines across it, at about one inch apart of the entire screen, it is clear that the the red cathode voltage is very lower than the other two. the main reason for this fault, normally seen in most of the Sony Trinitron, are loose soldering points either to the picture tube base socket or the resistor connected between the red drive transistor's collector point. Resoldering the most of these points on the base card by applying a little more solder will rectify this probelm. Other possibility is shorted video output transistor of that cathode. A direct short [collector to emitter] of these transistors will drop volatge to very low at that respective cathode of the picture tube, and that colour will be pridominant along with lines. Replacing the transistor will solve the problem. In some cases, the resistor connected to that transistor may have blown out. If so, it should alo be replaced. Whatever the case may be, voltage at the respective cathode that emits colour will be very low with respect to the other two. Find out the reason and rectify it. You can compare the voltages of the other two cathodes with respect to the faulty colur cathode. Cathode pins will be marked on the base card, and can be identified. It is best to pull out the base card from the picture tube neck and place it somewhere a safe place without shorting it with other parts of the TV. You can measure the voltages of these points very easly, without fearing the damge to the picture tube. After all are found Ok, replug the base card and switch on the TV. The set will be alright. In rare cases, chroma IC also can be a reason for this fault. if it is faulty, after a short period after switch on the TV, the IC will overheat and shutdown the entire system.

on Mar 21, 2011 | Flat Panel Televisions

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My TV picture has a greenish tint.




The first thing to check is the cables connected at the back of the TV.

Check cable connection, and try using a different cable, video signal is often coded in separate colors signal, and a bad cable can cause a green picture when red or magenta (depending on type of signal) are out.

A faulty receiver or DVD player can also send a bad output. Try connecting different devices to TV.

If the cables and receiver are OK there are also internal faults that can cause the same effect.
The fault depends mainly on the model and type of the TV set.

On all TVs a faulty input/output can cause greenish picture.

On all digital TVs the signal is also elaborated on different color channels . Video circuits are often located on digital board.
A fault on digital video processing can cause a green picture.

If you have a rear projection CRT based technology, one of the three CRT may be faulty, or the power board supplying the CRT (red in your case) may have blown.
In that case you will get a greenish picture.

If instead you have a CRT TV, a greenish picture means that the red gun inside the cathode ray tube is not working. The CRT itself must be replaced.

Generally, when the problem is not the video cable , or the connected device, the TV must be inspected and repaired by a technician.

If you have a new digital TV, as an LCD, Plasma, or any non CRT based technology, the problem is usually caused by cables, input output, or connected devices.

Check the cables thoroughly, if that is not the problem, call manufacturer to find the nearest repair service location.

on Oct 23, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

No picture on televesion


I had this problem in my TV.

Objective reasons: tidal processing method. If you can find a picture tube, take it down and use hot hair to remove moisture.

Hardware subjective reasons: this is only for a cathode ray tube.

My advice: If the TV is expensive, then replace another tube. If the TV is in an retirement age, give it a holiday in advance, because the TV than life in the energized dangerous!
Since I am not a telecommunications professional, the above is for reference only.

Mar 22, 2013 | Sharp LC-32DV24U COMPLETE DVD ASSY

1 Answer

My Sony big screen rear projection TV model KP=51HW40 produced 2002 screen flashes red then shuts off. We can turn it back on and it will run for 30-60 minutes and then it repeats red flash. Is this


The Problem you are having is a Cathode to Grid Short in the Red CRT,When it Shorts the screen will Go all Bright Red and shut Down,The Best fix Would Be to Replace the Defective CRT (GUN)

Dec 30, 2011 | Sony Flat Panel Televisions

1 Answer

I have a toshiba tp50h50 rear projection tv and their is a blue shadow behind the words and makes the words a little blurry


Sounds like you need to do a color convergence. If you still have the owner's manual, it will give great detail on how to do this. The convergence menu is accessed from the video menu on the tv.
The tv has three color picture tubes, red, blue and green. The convergence alignment adjust each tube so that color from each tube overlaps each over to create a white image on the screen. Most tv's only allow you to adjust the blue and red colors.
Convergence should be performed each time the tv is moved and at least once annually.

May 16, 2011 | Flat Panel Televisions

1 Answer

Hi my audiovox fpe2705 needs red color in shows only in green an blue thank you


remove back cover then check the CRT tube if there is color red cathode how?by using a wire or test prove connected in ground in your TV very quick if red screen flashes your CRT is good then check your CRT board socket find the driver transistor of red cathode then check it if shorted replace thank you

Mar 05, 2011 | Flat Panel Televisions

1 Answer

My 40" tv shut off


1. PSU (power supply unit) board problem, replace or repair

2. if your tv is CRT(cathode ray tube) type, chances are the horizontal output transistor is busted. Replace.

In the above problem, a qualified technician is required,

hope this helps ;-)

Feb 03, 2011 | Element Electronics Flat Panel Televisions

1 Answer

Good morning, i have a 50'' rca hdtv rear projection.../ and when i turn it ''on'' there is no sound and no picture..but the blue light comes on and then blinks 4 times and the 5th time it stays on then...


You might have a bad lamp. RCA DLP projection That is the most comon problem with them. CRT rear projection, Red,Green,and Blue tubes.If it is the silver one w/the black speaker grill. Chass # _ _ _222 ?
Has 222 in the number.Can be several problems. Many things go wrong in those. Horz. Output,Flyback,And bad soldering are the most common problems w/those. Recomend staying away from RCA. Not the same company they once were.

Jan 01, 2010 | Sanyo DP50747 50 in. Plasma TV

1 Answer

Whers the crt and the deflection yolk coil at


The CRT is the Cathode Ray Tube, it is the complete internal screen assy for your old style monitor or television.

On the rear neck of the tube is a large set of coils which makes the tube work.

It controls screen size , positioning and shape

To set it up you need a lot of experience and a signal generator

May 31, 2009 | Sharp Flat Panel Televisions

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