Question about Standard (CRT) Televisions

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Loss of color after lightning storm

After a flash of lightning last night I lost all red tones on my TV, everything is just blue and green. The power never went out just the color on the TV and I have tried resetting the color on the menu to no avail.
Is there a way to fix this? I have tried using a small magnet on the screen and it does bring back the color to that area but only as long as the magnet is held there.

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In tradition televisions, each color has its own gun, convergence and control circuit. One or more of these are most likely bad. Repairs on standard CRT TVs nowadays are usually cost prohibitive.

Posted on Jun 09, 2008

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The picture has a green tint to it on all channels


The color signal consists of Red, Green and Blue. Those three colors, at various degrees, make all the other colors on your screen.

If you have a BRIGHT green screen it's best you don't operate your set.
If it's just tinted green then there is a problem on the CRT (Cathode Ray Tube) drive board. Do check your "tint" setting and see if someone misadjusted it. If that isn't it then you need to have your set on an electronics bench and get an estimate for repair.

Apr 17, 2010 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

My screen has lost any red toning and is just green/blue colour?


On your component cable (GREEN/BLUE/RED) check the connector for the RED on on both the TV and the device it is connected to. Also check the the RED for the VIDEO and the RED for the AUDIO are not switched on both the TV and the device as well.

Good Luck...

Feb 24, 2010 | Sony FD Trinitron KD-36XS955 36" TV

1 Answer

Not able to get red tones on TV


the problem is at the crt base .there r three red,blue n green o/put.verify if there is dry in the soldering n check the red cathode voltage it must b around 150 .if not then check the resistor that feeds the red o/put.it could b 12 to 15k. all crt have 3 driver color red blue n green,whenever one driver not working the color changes.that wat happened to ur tv now i do not know wat model u have.the drivers may b transistors or now its ic that r being used like tda 6103q.best of luck

Jan 03, 2010 | Toshiba 27AF45 27" TV

1 Answer

Ilo TV,32", storm last night, lightning struck, pop,no TV.help?


Hello DJ,

I am sorry to say but it sounds like you had a major surge go through your tv. Go to this area: TV Repair man in your area
Find a repair place near you and have them check it out.

Jun 14, 2009 | iLO IWT3206 TV

1 Answer

Sony FD Trinitron Wega model KV-34BR800


Sony Wega Triniton KV-32FS100 TV

For the last week my TV has been going to a black screen for 10 seconds or so then the picture returns. It has been continual. Last night it stopped going to black screen, but now the standby light flashes 5 consecutive times and the color went haywire. A lot of red and everything that is suppose to be black is green.

I did a soft and hard reset with no success. What's wrong and is it worth fixing? Bought new in November 2002.

Aug 01, 2008 | Sony FD Trinitron WEGA KV-32FS100 32" TV

2 Answers

No Power to my TV after power outage


A lot of times its simply a fuse that goes out. Either way someone is going to have to open it up and inspect the fuses first. It 's a fairly inexpensive service call.

Hopefully the fuse took the hit from the storm.

Jun 04, 2008 | Standard (CRT) Televisions

1 Answer

2001 sony wega 36" tv tube


If you turn the color all the way off the picture should have good black and white if not the crt is at fault. If it is good it could be the jungle ic or the possibly the red color driver in the crt board

Apr 06, 2008 | Sony FD Trinitron WEGA KV-36HS420 36" TV

1 Answer

Kp-46wt510 rear projector from sept. 2003


You have a failure in the convergence circuit. There's a circuit board ( the convergence board) which has 3 IC'c on it that drive yokes on each of the picture tubes red-green- blue. You probably lost power to these IC's or one or more may have opened up. Sometimes poor solder joints on these IC's will develop causing loss of convergence. Hope this gives you an idea as to where you problem is. Stargazer

May 26, 2007 | Sony KV-27V22 TV

1 Answer

RCA F31317 lost blue in picture.


this symptom is characterised by the loss of one or two primary colours. this symptom can be classified into three cases: 1) loss of red colour, 2) loss of colour blue,3) loss of green color. this symptom may be caused by a trouble in the colour demodulator, in the color amplifier or in the colour subtraction amplifier circuit. in your case loss of blue colour. this is a very complicated problem that you need some special test equipment like oscilloscope and color pattern generator in order to trace the signal. tune the receiver to a color broadcast station(a colour bar generator can be used to transmit a colour signal to the set). check the Z-axis demodulator, z-axis amplifier and the B-Y output circuit for the chroma signal. observe the signal process with an oscilloscope. if the color signal is not present use a VOM to locate the defective component in any of the above circuits. check the transistors and the resistors in the collector circuit. good luck!

Feb 14, 2007 | RCA F31317 31" TV

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