Easy Ways to Fix Red Dominant TV

Easy Ways to Fix Red Dominant TV

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On: 23 Feb, 2021

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Category: Circuit

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Easy Ways to Fix Red Dominant TV - Television is a medium of information and entertainment that is currently owned by almost every home. Even in this sophisticated era, there are many new innovations developed by television vendors to create new a...

Easy Ways to Fix Red Dominant TV - Television is a medium of information and entertainment that is currently owned by almost every home. Even in this sophisticated era, there are many new innovations developed by television vendors to create new and increasingly high-tech television appearances. Tube TV is an ancient innovation that is now being abandoned by modern life. However, it does not deny that the majority of people in the middle to lower economy tend to choose tube television.

As an electronic media, of course it is the same as other household electronic devices, namely television (TV) which may experience problems, damage or interference. In this case you don't need to panic because some of the problems that are often encountered on television can be resolved by yourself without having to buy a new product so you don't have to spend a lot of money.

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One of the problems that are often encountered on television, especially on cable television, is the screen that turns red, or the screen is blank and changes color to red. Problems like this are of course annoying because they will interfere with the owner's TV viewing activity. Especially if there is a favorite television program that is usually watched every day.

Usually the problem that is often encountered on CRT television systems or other brands of TV is the presence of a bright red blank screen even accompanied by thin white lines which would make you worry if you first encounter it. In general, the incident of TV with a bright red blank screen occurs when there is a short circuit on the red cathode (RK) on the CRT TV screen tube.

However, what is often annoying is the occurrence of problems like this seems to only occur occasionally, not continuously, but there are also cases that occur continuously. If it happens any time it will be even more troublesome to fix it, so the TV becomes cranky.

Please note that each television cathode has a higher potential up to 100 V or even above. However, this potential experiences a short circuit or short to the ground potential, so that the electrons that are fired from the cathode to the anode in the CRT tube will experience an excess as determined, this is what then causes EHT energy to flow to the anode of the practical flyback transformer. just poured out here, the display color on the screen becomes more of the color of the cathode which is short or red.

To fix television problems with a red screen like this, there are many ways that can be done, especially we have to check the television, after checking the existing problems will be found and how to find a solution.

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The first check is on the 180v voltage section in the RGB socket which is located on the cathode tube colored R or red. Initially, we tested it by turning on the television, then the avo meter was positioned at 250v DC, pay attention to the output voltage, it can be seen on the tester. Under normal circumstances the voltage should be between 100v to 130v, if the conditions are more than that then you can check the driver transistor.

At first, turn off the television then remove the transistor, test with the ohm position avo meter, if it dies then replace it with a new one or replace it with a transistor that has a lamp type dk13002, dk13005, c2611 and others. If the voltage is normal, then you can then test the television tube. The trick is to remove the resistor that has entered the skoet in the R or red section, thumb the R to GND socket with a 10K resistor, then turn on the TV engine, pay attention to the image that comes out on the screen. If the screen is bright red, it means the tube is still good, but if the image is still not red, it means the tube is damaged.

Another case could be that the image on the television screen is not bright red, but that does not mean the tube is damaged, in this state, the tube can still be used, the method is to be sprayed with the focus voltage from the fly beck. The next step to test television is to test the voltage at the chrome output voltage, in this section you can check between 1v to 3v.

That is what can be done to be able to fix a television whose screen has turned red. Hopefully this article was useful and your problem is resolved.

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