Choose to buy an old CRT monitor

The old CRT screen helps users save nearly half the cost of the new screen. But to choose a quality monitor from this secondhand world you must have a little experience below, a little effort and . luck.

Currently, the computer screen market in Vietnam is very diversified with many screen brands such as Dell, Sony, Viewsonic and Samsung . However, not everyone is eligible to buy monitors. New, many people choose to buy used monitors (secondhand) because the price is just under one million dong. The difference of one million VND between two old and new 17 "CRT monitor models can help them save or put money into buying some more necessary components and accessories. old.

1. Brand is only a small part

People often choose to buy famous branded monitors such as Compaq, Samsung, Sony, Dell . but be careful with old screens because they can be swapped or re-labeled, but pulling back the label Or this brand is not difficult for "butt" professionals. So brand is only a small part.

2. The shell is too old or too new: not selected

It must also be careful with the case, because this is the first step of the shipper's honesty. If you find them too new or too old (the color has turned yellow), it is not good, because the seller can change the cover easily or the yellowed cover is a sign that the case is too old. For some black screens, you need to pay attention to gloss or black abrasives on the screen cover. If the ball is more than a rough spot, be careful because it is an old screen. You also need to look closely at the screen surface to see if they are scratched, if so, it should not be chosen.

3. Production time

It is recommended to select a production screen from 1998 back here, by looking at the parameters listed on the back of the device. Note that these parameters must be clear, sharp, not erased or smudged because this stamp may have been replaced by another stamp. But if the stamps are lost, they must move to the next step.

4. Control keys, fine-tuning

Older screens or "butt cheeks" often have a spin button. This is not good and should not be chosen because this is the old generation screen. The screens produced from 1995 onwards have moved to the key press already. These keys are just below the screen, or next to the device. The keys must be intact, clearly annotated, easy to control. You need to be calm, patiently examine each node details, especially the demagnetization button (recorded as Degause or the U symbol). According to experience, the demagnetization button is also a factor that determines the age of the screen. But you also have to check it carefully because sometimes the re-degrading button is in the menu.

5. Start the screen

Your next step is to turn on the screen and review. It should be noted from the beginning that the screen's sensitivity. Normally, the screen will show up after 5-7 seconds, poor-quality screens often show very slowly due to the old image bulb. Old screens cannot 100% of the screen due to shrinkage of the long-screen screen, so carefully refine it with your own buttons but if you can't fix it, maybe You should not choose a screen. Many vendors overcome this situation by installing this software to control the elasticity, but the hardware is actually faulty. Therefore, the screen quality is still not good.

Having a good experience if you have a separate Averbox TV card that can be carried and plugged directly into the screen to watch TV, it will detect many errors of that screen.

Notice the color and sharpness of the displayed image. You also need to adjust the brightness to the maximum to see if there is any dark spots and adjust to the minimum to see if any points are too bright. Finally, turning off the screen, there is absolutely no light spot in the middle or the entire screen is dim after turning off. Pay more attention to the screen resolution, as well as the scan frequency to be above 60 Hz. If it is lower, you should not choose.

Currently the most popular are the 17 "and 21" types. Price from VND 600,000 to VND 850,000 / unit. Large, super flat screen is over 1 million VND. Prices in HCMC are not very different. Dell, Compaq, 15-17 "screens cost about $ 20-40. The bigger and bigger screens cost about $ 1-5 million. The ones manufactured since 2002 are the highest. 50-70 USD You can easily buy old monitors from IBM, HP, Compaq, Nec, Dell, TVM . and many other labels from 15-21 "in Bui Thi Xuan or Ton That Tung computer street and the surrounding area.