全志v40 hdmi无输出_从不购买40美元的HDMI电缆：没有比便宜的电缆更好的了

全志v40 hdmi无输出

When it comes to setting up your home media center, be it modest TV with a sound bar or a 60″ 4K HDTV monster with premium surround sound, splash all the cash you want on the TV and speakers—but don’t spend a dollar more than necessary on HDMI cables.

设置家庭媒体中心时，无论是带有条形音箱的普通电视还是具有优质环绕声的60英寸4K HDTV怪兽，都可以将想要的现金全部花在电视和扬声器上，但不要花一美元在HDMI电缆上超出了必要。

RELATED: How to Enable HDMI-CEC on Your TV, and Why You Should

相关文章： 如何在电视上启用HDMI-CEC，以及为什么要这么做

The HDMI standard has been out since 2002, and while a lot has changed—HDMI cables can now carry more data, display higher resolution video, and even control devices over HDMI-CEC—there’s one thing that hasn’t: cable manufacturers and electronics retailers are more than happy to fleece the hell out of you with high price cables. The same big box stores that were selling $50 HDMI cables ten years ago are happy to sell $50 cables today to any sucker willing to pay for them.

HDMI标准自2002年以来就已经出台，尽管发生了很大变化，但HDMI电缆现在可以传输更多数据，显示更高分辨率的视频，甚至可以通过HDMI-CEC进行控制设备 -有一件事还没有：电缆制造商和电子产品零售商非常乐意以高价电缆将您从地狱中骗出来。 十年前出售50美元HDMI电缆的大型商店，今天也很高兴将50美元电缆卖给任何愿意为此买单的傻瓜。

You absolutely should not pay those kind of inflated pseudo-premium prices, however, because in 99.99% of the cases, a $9 cable is just as good as a $19, $99, or $299 cable. Dubious? Let’s pick apart exactly why that premium cable is a rip off and then highlight the very few and far between cases where you might actually want to pay more than a few bucks for a cable.

您绝对不应该支付那种虚假的假高级价格，但是，因为在99.99％的情况下，9美元的电缆与19美元，99美元或299美元的电缆一样好。 可疑？ 让我们确切地解释为什么那条优质电缆会被剥夺，然后重点介绍一下您实际上可能要为电缆支付多于几美元的情况。

HDMI标准：宝贝，我们无所不能 (The HDMI Standard: We’re All Bits on the Inside, Baby)

When HDMI first came out, it was easy to forgive people for being duped by some of the claims surrounding early HDMI cables. Way back in the technological Middle Ages of 2002, we were all still a tribe of largely analog people, and cable manufacturers latched onto the concepts and superstitions surrounding analog cabling to sell their HDMI wares. For years, people had (mostly erroneously) bought the idea that you need super fancy speaker cables that were oxygen sealed, gold plated, dipped in unicorn blood, and air dried in the pure air of Scandinavian mountaintops to achieve the best sound.

当HDMI首次问世时，很容易原谅人们对围绕早期HDMI电缆的某些说法感到困惑。 早在2002年的技术中世纪时期，我们仍然是一个主要由模拟人群组成的部落，电缆制造商开始关注围绕模拟电缆的概念和迷信，以出售其HDMI产品。 多年以来，人们(大多是错误地)接受了这样一个想法：您需要超级精美的扬声器电缆，这些电缆必须经过氧气密封，镀金，浸有独角兽血，并在斯堪的纳维亚山顶的纯净空气中风干，以达到最佳音质。

With that in mind, when HDMI manufacturers (and the salespeople in blue and red polo shirts selling those cables) said the gold plating and other pseudo-premium features mattered, most people believed it. Clearly there was a reason all the HDMI cables at the store were $30+ (and every extra few feet was another $10+, naturally).

考虑到这一点，当HDMI制造商(以及销售这些电缆的蓝色和红色polo衫的销售人员)表示镀金和其他伪高级功能很重要时，大多数人都相信这一点。 显然，这是有原因的，所有HDMI电缆在商店中的价格都是30美元以上(自然而然，每增加几英尺就另需10美元以上)。

Here’s the thing, though: none of that matters. HDMI is a completely digital standard, with a multitude of error checking and corrective measures built right in. When it comes to HDMI, the cables either it works or it doesn’t. Either the bitstream is flowing correctly or its not. It’s not like the days of analog TV, where it was possible to get a partial, crappy signal with fuzz, static, and so on. With digital signals, you either get a picture, or you don’t get a picture. No amount of gold plating or unicorn blood will make it any better or worse.

不过，这就是问题：无关紧要。 HDMI是完全数字化的标准，内置了许多错误检查和纠正措施。就HDMI而言，电缆有效或无效。 比特流是否正确流动或不正确。 这与模拟电视时代不同，在模拟电视时代，可能会获得带有模糊，静态等内容的不完整信号。 使用数字信号，您要么得到图片，要么就没有图片。 镀金或独角兽血不会使它变得更好或更糟。

For almost every situation, your best bet is to simply buy the cheapest cables from a reliable company like the dirt cheap AmazonBasics cables or those from Monoprice. They will perform just as well as the $40 cables they’re selling at Best Buy.

在几乎每种情况下，您最好的选择是简单地从可靠的公司购买最便宜的电缆，例如便宜的AmazonBasics电缆或Monoprice的 电缆 。 它们的性能将与百思买出售的40美元电缆一样好。

If you buy an HDMI cable and it doesn’t work, barring some serious problem with the hardware you’re linking together with the cable, then the cable is defective. Return it or replace it.

如果您购买了HDMI电缆，但该电缆不起作用，则除非您要与该电缆链接在一起的硬件出现严重问题，否则该电缆是有缺陷的。 退还或更换。

支付建筑规范合规性和成角度的电缆费用(略) (Pay a (Slight) Premium for Building-Code Compliance and Angled Cables)

“But surely,” you say “there must be some instance where it’s worth paying extra?” It’s true. There are a number of few and far between instances where it is worth paying a little extra money. And that’s true: but it isn’t about picture quality.

“但是可以肯定，”您说，“在某些情况下值得付出额外的费用吗？” 这是真的。 在很多情况下，值得多花点钱的情况很少 。 的确是这样：但这不是图片质量。

The first, and most important, situation in which you should pay extra for your cables is to get cables that are properly fire rated for in-wall and air-return use. In-wall cables will be designated with the term “CL2” or “CL3”. These two designations indicate, per the U.S. National Electric Code, that the cables are rated to carry up to 150 volts and 300 volts, respectively (which decreases the risk of an in-wall fire if your home entertainment system has a catastrophic electrical failure) and that they are coated with plastic that releases less toxic compound when burned (so should a fire start, the smoke is less dangerous to you). You’ll also find cables that are “plenum” rated. These cables have an even safer coating on them and are designed for use in air spaces. For instance if you’re using the cold air return behind your media center to run an HDMI cable down into the basement where your AV rack is, not only is it the smart thing to do to use safer plenum cables, but it’s also required by building code in almost every jurisdiction. Safety first!

首先，也是最重要的情况是，您应为电缆支付额外的费用，是使电缆具有适当的防火等级，以用于入墙和回风。 入墙电缆将用术语“ CL2”或“ CL3”来指定。 根据美国国家电气法规，这两个名称表明电缆的额定电压分别为最高150伏和300伏(如果您的家庭娱乐系统发生灾难性的电气故障，则可以降低墙内着火的风险)并且它们涂有塑料，在燃烧时释放出较少的有毒化合物(因此，起火时，烟雾对您的危害较小)。 您还将找到额定值为“充气”的电缆。 这些电缆的涂层更加安全，专为在空气空间中使用而设计。 例如，如果您正在使用媒体中心后面的冷风回风将HDMI电缆向下插入AV机架所在的地下室，那么使用更安全的充气电缆不仅是明智的选择，而且还需要几乎每个辖区的建筑法规。 安全第一！

Speaking of running a cable a longer distance to a hidden AV rack, that’s another instance where it’s worth paying a little extra. While the difference between a 3 foot cable from a no-name company and a 3 foot cable from a premium company is practically indistinguishable, tiny defects in manufacturing or lower quality materials do make a difference in very long runs of HDMI cabling. Paying a few dollars extra for good quality control and better shielding on the cable is worthwhile when the run isn’t a foot down the back of your TV, but 20 feet across your basement rec room.

说到将电缆连接到隐藏的AV机架更长的距离，那是另一个值得付出额外费用的例子。 尽管无名公司的3英尺电缆与高级公司的3英尺电缆之间的区别实际上是无法区分的，但制造过程中的细微缺陷或质量较低的材料确实会在很长的HDMI电缆连接中产生影响。 如果运行距离电视后部不是一只脚，而是横跨地下娱乐室20英尺，则需要多花几美元来获得良好的质量控制和更好的电缆屏蔽效果。

Finally, given how thin TVs have gotten and how tight the distance between the TV and the wall can be, you might also find it worthwhile to pay a little extra for HDMI cables with angled plugs that allow you to squeeze in the connections at the back or side of the TV without severely bending the cable (which can stress both the cable and the HDMI port on your TV). You’ll find these cables in three types: “90 degree”, “270 degree”, and “right angle”.

最后，考虑到电视的厚度以及电视与墙壁之间的距离有多紧凑，您可能还需要为带有斜角插头的HDMI电缆多付一些额外费用，以便您挤压背面的连接。或电视侧面，而不会严重弯曲电缆(这可能会拉紧电缆和电视上的HDMI端口)。 您会发现这些电缆有三种类型：“ 90度”，“ 270度”和“直角”。

The first two are generally used for the back of a device (and you select one or the other based on the orientation of the port and what direction the cable is going, up or down). Right angle cables are used for side ports where you want to avoid the stiff HDMI cable sticking out past the edge of the TV bezel. (If this is a problem you currently have but you don’t want to purchase a whole new HDMI cable, you can always purchase inexpensive adapters that fit over the end of your existing cable.)

前两个通常用于设备的背面(您可以根据端口的方向以及电缆的方向(向上或向下)选择一个或另一个)。 直角电缆用于侧面端口，以避免硬的HDMI电缆从电视边框的边缘伸出。 (如果这是您当前遇到的问题，但是您不想购买全新的HDMI电缆，则可以随时购买适合现有电缆末端的廉价适配器 。)

Again, we want to emphasize the word “slight” from the title of this section. If you need these premium upgrades, that’s fine. But only pay a slight bit extra for them. In fact, in my cases, you don’t even need to pay more! The price difference between the AmazonBasics regular 15 foot HDMI cable ($10.99) and the AmazonBasics CL3-rated HDMI cable ($9.99) is actually a dollar less in favor of the CL3-rated cables.

同样，我们要在本节的标题中强调“轻微”一词。 如果您需要这些高级升级，那很好。 但是只需为它们支付一点额外费用。 实际上，就我而言，您甚至不需要支付更多！ AmazonBasics常规15英尺HDMI电缆 (10.99美元)与AmazonBasics CL3额定HDMI电缆 (9.99美元)之间的价格差实际上比CL3额定电缆少1美元。

In short, the best HDMI cable for the job is the cheapest possible cable that works. If it transmits the signal, that’s all that matters. Buy cheap, return if necessary for a different cheap cable if you run into issues, and spend your hard earned money on movies to watch on your sweet HDTV setup.

简而言之，最好的HDMI电缆是可行的最便宜的电缆。 如果它发送信号，那就很重要。 廉价购买，如果遇到问题，则可以使用其他廉价电缆返回(如果有需要)，并将辛苦赚来的钱花在电影上，以欣赏甜美的HDTV设置。

翻译自: https://www.howtogeek.com/93952/save-a-bundle-by-skipping-the-expensive-hdmi-cables/

全志v40 hdmi无输出