Question about Mitsubishi VS-45609 TV

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Color flickers off and on

My tv's picture flickers the color off and on. I'm not sure if the picture tube is going out. It's only about 4 years old and I'm worried that something is seriously wrong. Can you help?

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Re: color flickers off and on

Most of the time TV problems arise by power supply noise. This noise in the supply is usually caused by Electrolytic Capacitor failure. If you are technical, you can get the schematic and look for the voltage regulator circuits. Measure the voltages with a DVM using both the DC and AC settings. If the DC setting is lower than normal, you will probably see about .5 to 1v of AC voltage on the line. Look for the large capacitor in the regulator circuit and replace them. Cost about  $.50 each. Get new caps with slightly higher voltage rating (if they will physically fit).

Good Luck

Posted on Oct 16, 2007

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The tv is at least 17 years old.The blinking red light blinks 5 times ,then the tv picture goes off . The voice is still on

Five blinks is the error code for an AKB (auto kine bias) error. What this means is that the set isn't able to balance the three color guns (red, green and blue) of the picture tube properly, and it's blanking out the screen.

To get the proper colors, the signals for the three colors need to be balanced, and Sony sets have circuitry to do this automatically. Other brands don't, and when they go out of balance you see a picture that starts to show tinting or colors that are off. As the picture tube ages, it gets harder to adjust the balance until finally the AKB circuit can't anymore, and poof, the picture goes away. With a 17-year-old tube, it's not surprising.

There isn't anything that can be done to fix the picture tube, it would need to be replaced. But the cost of the tube and the work required to get it set up after installation makes it completely uneconomical to repair this TV. A new picture tube is nearly $200. Then special tools are required to set the tube up (a process called convergence), so you'd need to find someone to put it in, and possibly pay to have the old one disposed of. A new 32-inch LCD set is around $350 now. Treat yourself to a new one.

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My tv sceen has a stain that makes anything white look yellow.

The color image is comprised of three colors, Red, Green, and Blue.
All the other colors are mixtures of those colors. The yellow picture indicates that your set is lacking sufficient blue drive.

First of all check to make sure that the tint control is not misadjusted.
The next thing is dependent upon the age of your television. If it's an older set that yellow tint is a sign of an aging picture tube.
If it's a newer set, less than 5 years old, have it analyzed by a electronics technician that is familiar with televisions if he is skilled enough he will know right away if it's the picture tube or not.

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2 Answers

We have a 32" standard sharp tv about 10 years old and we are having trouble with the picture. There are colored dots all over the screen.

Dear sir,your television is very old ,so picture tube is weak for this reson color dot all over the screen, replace the tube then is ok.

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Sony Trinitron TV now taking around 5 minutes for picture to appear (sound comes on instantly) Is it worth repair or should I cut losses and replace set?

How old is the TV?
Sony Trinitron sounds like it may be from the 1980's?
Some TV engineers can use a piece of equipment to do a "tube boost" but this is sometimes risky and can completely ruin the tube, but it's a risk you would have to take.
If the TV is over 15 years old, and has been used regularly, (like 4 hours every day or more) it seems likely that the tube has reached the end of life.
TV cathode ray tubes are like light bulbs...they do not last forever!

Nov 17, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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Our sony trinitron 27" wega less than 5 yrs old..when powered up flickered off three times now stays on but the color is very red no matter if we reset or do a color adjust or unplug it from the cable box...

sometimes picture tube tvs develop shorts between the internal electrodes usually cathodes to filaments causing the one or more of the guns inside the tube to go high in emission, when this happens the screen or picture you see will get excessively in this case red and some horizontal diagonal lines will also show causing the tv to shut down, another condition that may cause an excessive red screen may be a failure of one of the voltage source that feeds the color amp in this case the red ampl, this also may cause the retrace lines and tv shutdown.i hope this explanation helps you better understand what might be going on with your tv. In both cases technical analysis will be required and in some cases even the picture tube condition can be corrected with out having to resort to a picture tube replacement. i hope i answer the your inquiry to your liking and if so please let this site know by leaving some pos feedback.

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I gotta love it when people make up answers. There is no such thing as a "contrass module". I'm assuming the poster meant "contrast". The trouble is your 12-year-old picture tube. It's gotten weak and isn't getting as bright or sharp as it used to. Picture tube manufacturers estimate the useful life of a tube at about 7 years today. There are adjustments inside that might help some, but you need a new picture tube. It's going to cost a lot more than $60 to $75 for that. You're better off replacing the TV.

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1 Answer

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1 Answer

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The tube needs to be degausse you had maybe placed speakers beside the tv causing it to magnetize have a tech look at it to remedy the problem.good luck.

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1 Answer

WEGA 36" : Screen is low contrast and green

Sorry to say, it sounds like a bad picture tube, But could be also the capacitor that filters the screen voltage on the crt drivers. In all my years though, your complaint has been the picture tube. Good Luck.

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