当许多人发现高质量的显示器太贵时，他们会考虑购买二手显示器。当人们买不起这样的显示器时，他们会选择下一个最佳选择——二手显示器。如果您想以可承受的价格获得质量更好的显示器，您可能会考虑购买二手显示器。(better-quality display)许多显示器，例如液晶显示器(LCD monitors)，尤其是大显示器，仍然处于高价位(price range)。
喜欢拥有多台显示器的游戏玩家也更喜欢购买二手显示器，因为它们成本低。当您购买此类二手显示器时，您需要检查一些事项。购买二手显示器时，您唯一需要担心的是损坏吗？或者你还有什么需要注意的吗？答案是肯定的；还有一些其他的事情你应该注意。我们为您列出了其中的一些。
购买二手显示器前的清单
1. 一般查询
向卖家索取显示器正本。如果显示器在保修期内(warranty period)，您还应该索取保修卡(warranty card)。bill/warranty card上的经销商联系来验证它们。
如果您打算在线购买，请确保从受信任的网站购买显示器。检查销售网站(selling website)是否是知名品牌。不要从未知或不受信任的网站购买产品。 从退货政策好到不容错过的网站购买。(Buy)如果出现任何问题，您将收到适当的回复。他们可以支付退货费用并(back and get)为您退款。
2. 价格
购买前务必检查显示器的价格。检查价格是否负担得起。除此之外，还要验证显示器的价格是否不会太低，因为便宜的显示器价格低廉是有原因的。另外，比较同一型号的新显示器和用户显示器(user monitor)的价格。如果您有能力以卖方的价格购买显示器，您可能会考虑交易。仅当您获得合理的讨价还价(bargain price)时才选择二手显示器，否则不要。
另请阅读：(Also Read:) 修复(Fix Second Monitor)Windows 10中未检测到(Detected)第二个监视器
3. 显示器的年龄
切勿购买太旧的显示器，即不要购买过度使用的显示器。购买(Buy)最近的显示器，最好使用三年以下。如果超过四五年，请重新考虑是否需要该显示器。我建议您不要购买太旧的显示器。
4. 物理测试
检查显示器的物理状况，注意划痕、裂缝、损坏和类似问题。此外，请检查连接线和连接器的状况。(connecting wires and connectors.)
打开显示器并保持近一个小时。检查显示颜色(display color)是否褪色或屏幕是否有振动。另外，请检查显示器在长时间运行后是否发热。
检查(Check)“干接头”。“干接点”是使用过的显示器中最常见的故障。在这种类型的缺陷中，显示器在变热后无法工作。您可以通过离开显示器并在上面工作至少 30 分钟到一小时来检查显示器是否存在此问题。如果显示器不工作或变热后突然黑屏，则显然已损坏。
5.检查设置
有时，如果您更改设置，某些显示器的性能会不佳。为避免购买此类损坏的显示器，您必须调整显示器的设置并检查(monitor and check)。尝试使用监视器按钮调整监视器设置菜单中的设置。您应该检查是否可以调整以下设置以及是否可以正常工作。
6. 显示测试
您将不得不执行各种显示测试以检查显示器是否仍处于良好状态。
一种。坏点
坏点或卡点是硬件错误(hardware error)。不幸的是，您无法完全修复它。被卡住的像素被单色卡住，而坏点是黑色的。您可以通过全屏打开单色红色、绿色、蓝色、黑色和白色图像来检查坏点。这样做时，请检查颜色是否均匀。确保打开颜色时没有暗点或亮点。
要测试您的显示器，请全屏打开浏览器。然后打开一个只包含一种颜色的网页。(webpage consisting)测试红色、绿色、蓝色、黑色和白色。您还可以将壁纸更改为这些颜色的普通版本并检查坏点。
湾。伽玛值
大多数 LCD 显示器的 gamma 值为 2.2，因为它非常适合Windows，而 1.8 适合基于 Mac 的系统。
C。监控测试站点和应用程序
您可以从 Internet 下载各种显示器测试仪应用程序(display tester apps)来检查显示器的质量。这些显示测试仪附带测试以检查屏幕上的卡住和坏点。此外，您可以使用此类应用程序检查各种噪音水平和显示器的整体质量。您还可以使用各种网站来测试显示器的性能。EIZO Monitor Test就是这样一个基于 Web 的测试站点。
其他方法(Other methods)
您还可以目视检查显示器是否有闪烁、图像失真(image distortion)和屏幕上的彩色线条。您可以在YouTube 上(YouTube)搜索各种屏幕测试视频(test videos)并在显示器上播放。在进行此类测试时，请始终使用全屏模式。通过这些方式，您可以检查并确定显示器是否值得购买。
推荐的：(Recommended:)
- 如何在Windows 10中更改(Windows 10)显示器刷新率(Monitor Refresh Rate)
- 修复电脑屏幕随机关闭(Fix Computer Screen Turns Off Randomly)
- 没有打印机时如何打印
- 修复蜂窝网络(Fix Cellular Network)不适用于(Available)电话(Phone Calls)呼叫
我们希望本指南对您有所帮助，并且您能够在购买二手显示器之前使用此清单(checklist before buying a used Monitor)。不过，如果您有任何疑问，请随时在评论部分(comment section)提出。
Checklist Before Buying a Used Monitor
Many pеople think of buying used monitors when they find high-quality ones too costlу. When people cannot afford ѕuch monitors, they go for the next best option— second-hаnd monitors. You might thіnk of buying а usеd monitor if you want a better-quality display at an affordаble price. Many monitorѕ, suсh as the LCD monitors, especially the big ones, are still in the high price range.
Gamers who like to have more than one monitor also prefer buying used monitors as they are low in cost. When you purchase such used monitors, there a few things you need to check. Is damage the only thing you have to worry about when buying a used monitor? Or is there something else you have to watch for? The answer is yes; there are a few other things you should look out for. We have listed some of them for you.
Checklist Before Buying a Used Monitor
- General Enquiry
- Price
- Age of the Monitor
- Physical Tests
- Display Tests
1. General Enquiry
Enquire the seller for the original bill of the monitor. If the monitor is under warranty period, you should also ask for the warranty card. You can also verify them by reaching out to the dealer on the bill/warranty card.
If you’re planning on buying it online, make sure you buy the monitor from a trusted website. Check if the selling website is a reputed brand. Do not buy products from unknown or untrusted websites. Buy from websites whose return policies are too good to miss. If any issue arises, you will receive a proper response. They could cover the charges of back and get you a refund.
2. Price
Always check the price of the monitor before buying it. Check if the price is affordable. Besides that, also verify whether the price is not too low for the monitor as a cheap monitor comes for a low cost for a reason. Also, compare the prices of a new monitor of the same model and the user monitor. If you can afford to buy the monitor at the seller’s price, you may think of a deal. Go for used monitors only if you get a reasonable bargain price, otherwise don’t.
Also Read: Fix Second Monitor Not Detected in Windows 10
3. Age of the Monitor
Never buy a monitor if it is too old, i.e., do not buy an overused monitor. Buy recent monitors, preferably below three years of usage. If it goes beyond four or five years, rethink if you need that monitor. I recommend that you do not buy monitors that are too old.
4. Physical Tests
Check the physical condition of the monitor, paying attention to scratches, cracks, damages, and similar issues. Also, check the condition of the connecting wires and connectors.
Turn on the monitor and leave it on for almost an hour. Check if the display color fades or there is any vibration on the screen. Also, check if the monitor heats up after running for a long time.
Check for a “dry joint.” A “dry joint” is the most common malfunction in used monitors. In this type of defect, the monitor does not work after it gets warm. You can check the monitor for this issue by leaving the monitor and working on it for at least 30 minutes to one hour. If the monitor does not work or suddenly goes blank after it gets warm, it is obviously damaged.
5. Check the Settings
Sometimes, some monitors do not perform well if you alter the settings. To avoid buying such damaged monitors, you must adjust the settings of the monitor and check. Try adjusting the settings in the menu of the monitor settings using the monitor buttons. You should check if you can adjust the following settings and if it works fine.
- Brightness
- Contrast
- Modes (auto mode, movie mode, etc.)
6. Display Tests
You will have to perform various display tests to check if the monitor is still good in condition.
a. Dead pixels
A dead pixel or stuck pixel is a hardware error. Unfortunately, you cannot fix it completely. A stuck pixel is stuck with a single color, while dead pixels are the black ones. You can check for dead pixels by opening single-colored red, green, blue, black, and white images in fullscreen. When doing so, check if the color is uniform. Make sure that there are no dark or light spots when you open the colors.
To test your monitor, open your browser in fullscreen. Then open a webpage consisting of nothing but a single color. Test for colors red, green, blue, black, and white. You can also change your wallpaper to a plain version of these colors and check for dead pixels.
b. Gamma value
Most LCD monitors possess a gamma value of 2.2 since it’s great for Windows, and 1.8 would do good for Mac-based systems.
c. Monitor test sites and apps
You can download various display tester apps from the internet to check the quality of your display. These display testers come with tests to check for stuck and dead pixels on your screen. Also, you can check various noise levels and the overall quality of your monitor using such apps. You can also use a variety of websites to test your monitor’s performance. One such web-based testing site is the EIZO Monitor Test.
Other methods
You can also check the monitor visually for flickering, image distortion, and colored lines on the screen. You can search for various screen test videos on YouTube and play them on your monitor. While conducting such tests, always use the fullscreen mode. In these ways, you can check and find out if a monitor is worth buying or not.
Recommended:
We hope this guide was helpful and you were able to utilize this checklist before buying a used Monitor. Still, if you have any doubts then feel free to ask them in the comment section.
