Sabtu, 09 April 2011

cope with CRT monitor

When I read his article was quite interesting especially the discussion of the Reparation of the monitor, please be aware that tips given here also applies to television, step by step it was exactly the same. Therefore I will review the article here and because his article is quite long so I will divide into two posts, in accordance with the original writings of the monitor repair bag 1 and bag 2.

The first paper on the introduction of the component monitor itself and how to fix a broken monitor without having any special expertise, exemplified here Incidentally damage is not too severe is blurry / too bright / not in focus.

Generally, the use of CRT monitors with more than 1 year will be a little more experience changes in appearance, usually a bit blurry, too bright, too dark, the picture is less bright or other damage. The experience that the authors will describe is urgent, which does not need a special skill in the field of electronics in practice, at least you understand what electricity, means you have to be careful because the electrical name was not visible but can be felt.

Component parts of the monitor is identical to the name "high voltage", it's true ... because there is tension in the tube monitor thousands of volts, how come? Whereas electrical voltage in the homes only 220 VAC, was due to a series which serves to raise the voltage, here the author does not discuss how to raise the voltage but rather on the practical course.

For the introduction, in which the monitor is a component called "fly-back", this is where high voltage is released into the tube monitor, the shape of its components you can see in the picture below.

Tips that will I have to say is; cope with a CRT monitor that looks blurry, too bright and less bright. Display image on the monitor screen is basically influenced by several components and circuit, including: RGB, fly-back, chokes, degauss, and others. But the tips that I have to say just about the Fly-back, remember these tips are urgent.

The first step was to prepare for the practice of supporting equipment, including; screwdriver + and -, test pen and brush (if needed to clean the innards of the monitor).

Reverse the position of the monitor to open the body of the monitor with the release of all nuts, images can be viewed below (if you belong to a child who can diligently monitors while innards cleaned with a brush).

Thing you need to watch out and try not to touch it is the cable from the fly-back who stuck to the tube monitor (good condition let alone off the monitor is on), the picture you can see below.

Fly-back has 2 trimpot / variable resistors (shaped like a round of audio volume control) to 15 "down, and 3 pieces trimpot to 17" and above. Among them, focus and screen (also valid for 3 trimpot).

Trimpot with a focus adjust (regulated by cycled) to obtain clear images, while the trimpot with a screen name adjust to regulate light-dark display on the monitor screen, the image can be seen below.

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