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TOSHIBA 21S3E THE PICTURE NOT CLEAR,AND MANY CLOUR RED,GREEN,BLUE,IN SOME PLACES OF THE SCREEN, DIFFICULT YOU CAN SEE THE PICTURE. THANX ABDO EMAIL:mehairah1@hotmail.com

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  • Abdelrhman Jan 05, 2008

    thanks for trying, but the problem not solve.












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  • 373 Answers

Your set needs demagnatizing if it hasn't been dropped. Only a tv repairman has a demgnatizing coil. However one try: unplug it and turn it back on because all standard tv's have an automatic demagnatizing coil circuit around the tube inside. but doesn't always demagnatize completely.

Posted on Jan 02, 2008

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Posted on Jan 02, 2017

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Toshiba tv has dark picture cant hardly see want get bright


If it's a old style projection screen pry off front grid, you,ll see a trapezoidal mirror this often becomes hazed smoke, dirt, ect. Make sure set is unplugged DO NOT ASSUME THEIR IS NO SHOCK HAZZARD BECAUSE SET IS UNPLUGGED(see capacitors) be careful and clean mirror with damp cloth and glass cleaner try not to spray as safety percotion, their are 3 tubes red , green, blue, green is th dominaent color if you know how turn blue HVU UP 1st( CLEAN picture tube lens 1st) These type of picture tube have clear poly glycol ( anti freeze) in lens unit to cool and is part of the optical system. I this fluid becomes contaminated then cost of repair may exceed value of unit, then increase red value I just thought you may bee able to do the color via menu not sure, if picture has a green tent at start this should help good luck , lot me know what you see.

Aug 18, 2014 | Televison & Video

1 Answer

Can i fix my tv screen is red


Toshiba 36A10 36" TV is the model you have indicated---

If the screen is all red and or too bright (no green or blue can be seen) the problem is in one of two places: Either a shorted picture tube or the board that plugs onto the end of the tube.

That board sends red,green, and blue video and information to the picture tube via 3 pins on the tube (the K or cathode for each).

The set will have either 3 IC's on that board or 3 transistors, or a single larger IC for this.

to troubleshoot this:

I would locate the Red Cathode and unsolder that pin at the socket on that board--takes red out---if you have green and blue picture then---it is either the IC/transistor that feeds that on the board or the tube itself.

If it has 3 chips (usually will each have a metal plate attached for cooling) you can either remove and replace the red one OR what I do is swap it with the green or blue chip---if suddenly you now have a blue or green only screen you know that part is bad--simple as that.

If for any reason the picture tube turns out to be bad--you are finished and so is the set= way too expensive to replace it.

Let me know if you have questions or need advice.

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1 Answer

Pink color appearence when swith on tv for 1 minutes & wringles form on the screen


Hello

Pink colour denotes the absence of green colour dispay in your picture tube. I hereby gies an approximate voltages at the three cathodes of your picture tube socket solderings, and you just measure the voltages with reference to this. The voltages are approximate, and can chage up to 2% up or down.
Green Cathode = Pin number 9 [161VDC approx]; Blue Cathode = Pin number 8 [162VDC apprpx]; and Red cathode = Pin number 10 [157VDC approx]

If any of these voltage differes, the clolur related to that cahode will also rise or low, thath is if the cathode voltage goes very low, that clour will be prdominent, and if it goes high, that colour will not be there.
In your TVs case, the green cathode voltage now will be high. t may be due to a soldering loose to either to the picture tube base socket or at the terminals of the related transistor or Ic. It is best to resolder the suspected loose soldering points by applying a little more solder, as we in service field also do. It is very difficult to locate the exact loose soldering point and so I advice you to do so. If needs, replace the colour output transistors, of other devices if used. Just look at the voateg at pin number 9 at the picture tube base card. Resolder all the picture tube base socket pins. If you wants any more calrification, contact me through Fixya. Ok.

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1 Answer

The t/v screen suddenly turned green. the picture is clear but green/no color


Good day! the problem you have posted indicates that the 2 color cathode of your tv is not functioning, it's either that the driver transistor of the red and blue cathode is defective or the crt socket. or maybe the solder point in the crt board needs resoldering. check for some loose connections.

Sep 29, 2010 | Toshiba Televison & Video

1 Answer

Clear but only blue/green color


Do you have a component cable hooked up to the TV? (cable with RCA connections Green/Blue/Red/White/Red)

If so you want to check that the red cable is tightly connected to both ends (TV and whatever it is connected to).

Good Luck...

Jan 23, 2010 | Toshiba 36A41 36" TV

1 Answer

The color on the screen is green when I watch movies. How do I fix this problem?


Good day sir, your inquiry about the green lcd screen can be caused by several things. 1. The monitor/tv produces 3 colors, red green and blue, the tv mixes these three colors to produce the picture. a loss of red and blue produces this green screen. so check the cable, specially the red and blue jack of the component inputs, and the red and blue cable. 2. there may be loose contact on the signal cable. try using the video input instead of the component input. 3. the dvd player may have the problem, check the player component out jack. a loose jack port can cause these problem. hope this may help. thanks

Jul 20, 2009 | Toshiba 32AV502U 31.5 in. LCD HDTV

1 Answer

The picture on TV is red


If your able to take the back off and have experience in soldering then you can look on the CRT board on the picture tube for cold solder joints, it should be quite visible. There are 3 transistors that look identical so I would look those over closely. Those are your Red, Green and Blue Video outputs. If you choose not to and want to take it in to a service center try and find one with Free Est. Notice on your screen if you have diagonal lines, if you don't, that's a good sign. Let me know what you decide!

May 20, 2009 | Televison & Video

2 Answers

Big screen TV corners of tv blue and red


I HAVE A 57" TOSHIBA REAR PROJECTION TV. HALF THE SCREEN HAS A BLUE TINT AND THE OTHER HALF IS CLEAR.

Jan 19, 2009 | Televison & Video

1 Answer

Hardly any Blue Color in the picture. the blue tube is projecting darker and dimmer.


You need a Blue picture tube CRT you can get one for your JVC at the following link for a real decent price and they provide free shipping. Heres the link.
http://servicemanuals.vstore.ca/

Jun 07, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Rear Projection Tv Problem! black and white... Please help


go into menu turn color off see if you have a black and white picture if not adjust red,green, and blue screen drive on controls in back of tv you have red, green, blue it will have focus /screen controls cover each tube do one at a time blue focus and screen drive adjust to clear blue picture do all 3 tubes, then adjust them to where you have a black&white picture once this is done turn color controll back on.Thank You for using FixYa and Have a Nice Day.

Nov 11, 2007 | Toshiba 50H72 50" Rear Projection...

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