编辑 Nintendo Switch 没有视频输出

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摘要

Is your Switch in the dock, but nothing shows up on your TV? Can’t get any video out to an external display? Take a look at these fixes.

附加信息

== First Steps ==

Before undertaking any of the more time-consuming solutions below, these are a few fundamentals to give a try.

* Be sure the model of the switch you’re using supports video output. The Switch Lite is intended for use only in handheld mode and is not compatible with the dock.
* Perform a hard power reset. Press and hold the Power button on the console for 30 seconds. Then press again to initiate a power-up sequence.
* If the issue is intermittent, try a software update. The software update setting can be found under ''System Settings > System > System Update.''
* In addition to the overarching system update, update your dock’s firmware. The setting can be found in ''System Settings >System > Update Dock.'' You may need to do some reconnaissance to be able to navigate here since it will need to be in the dock to process the update.
* Verify the light on the dock is light solid green. This is an indication the Dock detects the switch and is outputting video to the connected display.
[product|IF145-793|type=featured]

[comment]solutions[/comment]

== Incorrect Display Settings ==

Although the Switch will typically output correctly without any additional configuration, unintentional changes can be made.

* On the Home screen, navigate to ''System Settings > TV Output.'' Make sure the TV Resolution is set to Auto or is set to a resolution your display supports. If you aren't certain, consult the manual for your TV or monitor.

== Dock Connected Incorrectly ==

It sounds silly, but the dock can be extremely particular about the order in which things are connected. If you’ve recently moved your dock, or have disconnected power since the last time you used it, make sure you follow these instructions in this exact sequence.

# Power off the TV and disconnect anything connected to the dock, or between the dock and the TV.
# Connect the USB C Power adapter to the dock.
# Connect HDMI to the dock.
# Connect HDMI to the TV.
# Dock your Switch.
# Power on the TV.
# Select the proper TV input.

If all is successful you should be getting a solid green light on the dock indicating the Switch is detected and outputting video.

== Bad Connection Between the Dock and Display ==

Your issue may not be related to your Switch at all. There are many parts of the communication chain between your Switch and the connected display. You’ll need to test all of them to isolate the issue.

* Connect a known good device to the same HDMI input on the tv, using the HDMI cable previously connected to the Switch dock.
* If this is unsuccessful, try to isolate the failure. Connect the same known good device to a different input on the TV or use a different HDMI cable.
* If the device continues to function using the same input and HDMI cable as the Switch, move on to testing the Dock for function.

== Faulty Dock ==

Once you’ve determined your display and cable function properly, it’s time to test the final link before getting to the Switch itself. The dock contains two points of connection that are important for the transmission of video signals.

* Verify you’re using the genuine Nintendo Dock. Although they are pricier, the Switch is fussy about connected USB C accessories. Using an OEM dock may resolve your issue.
* Inspect the HDMI port on the dock. Be on the lookout for bent pins or signs of deformation.
* With everything connected, gently wiggle the HDMI cable on the dock side. Attempt to find a position where video transmission is successful. If you can, there may be loose connections between the port and the board.
* If the HDMI port is faulty, the [guide|146408|dock’s circuit board can be replaced|new_window=true]. Make sure to get the correct part. The original Switch and Switch OLED have slightly different docks.
* Especially if the light on your dock won’t stay solid green, Verify it isn’t bent, or missing any pins. It can be difficult to see due to its location. Use a flashlight if necessary.
** You may need to use a plastic spudger or other tool to depress the spring-loaded protector that surrounds the port.
* If it is damaged, [guide|150063|this part is also replaceable|new_window=true], but will require a bit more work to get at than the main dock board.

==  Faulty Charge Port ==

The USB C port on the bottom of the Switch serves a dual purpose. It acts as both the charge port and the interface for video output. Just because one function works properly does not guarantee the other does.

* Check to see if the USB C port is clean. Does a charger sit flush against the bottom edge? If it sits at an angle or has a loose fit, the port itself may be clogged. Use a flashlight to inspect.
** Removing debris from a USB C port can be a bit tricky due to its narrow gaps. Use an [product|IF145-064-2|air duster|new_window=true] and a toothpick shaved to fit to avoid damaging the port.
** Other [product|IF145-523|non-conductive tools|new_window=true] can be used in place of a toothpick, but avoid inserting anything metal into the port.
* Open the Switch and inspect for internal damage to the port, make sure it is attached soundly to the board, and free from burn or corrosion.
** Be aware there are some pins hidden by the port itself, so a clean visual bill of health is not a guarantee the port is sound.
* There is also a liquid damage indicator close to the port on the motherboard. This sticker turns solid red when it touches liquids.
** If you suspect your Switch may have water damage, you can use this [guide|113292|motherboard replacement guide|new_window=true] to get you inside to take a look. If the damage indicator shows up red, at least you're already halfway to completing the repair.
* Sadly, if you determine your port is the issue, it is not part of a modular replacement component. [product|IF378-017|The port|new_window=true] is soldered onto the board itself. If you do not have experience in microsoldering, ask around and see if any local repair shops offer this kind of repair. Otherwise, you will need to [guide|113292|replace the entire board|new_window=true].

== Faulty Motherboard ==

The motherboard is the hub for the vast majority of console functionality. Any number of the small components on the board may have failed or become damaged, and it's safe to assume a faulty motherboard is the cause if nothing else on this page has worked.

* Check for obvious signs of a board issue - burned or cracked components, liquid residue, corrosion, or bend. If there are signs of liquid the [guide|95280|iPhone Liquid Damage Guide|new_window=true] might help (this method applies to most circuit boards, not just iPhones).

[image|2851541]

* You can use this [guide|113292|motherboard replacement guide|new_window=true] to help get inside the device.
** Inspect closely around the PI3USB30532 chip on the rear side of the board. It handles the video output signals that travel through the USB port and its failure is a common cause for video output issues.
* [parts|Nintendo Switch|Replacing the logic board|itemtype=motherboards] is often the most practical solution for a DIYer in this position. If you see signs of liquid damage, this may be your best course of action.
** However, contrary to popular belief, the board itself can be repaired. It requires specialized tools and microsoldering know-how. This is not something most people can do themselves, but many independent repair shops can do it for you! Give your local electronics repair shop a call and chat about what they'd be able to do.
[comment]conclusion[/comment]

== Related Pages ==

* [[Nintendo Switch Will Not Turn On|Nintendo Switch Won't Turn On|new_window=true]]
* [[Nintendo Switch Blue Screen of Death|Nintendo Switch Blue Screen of Death|new_window=true]]
* [[Nintendo Switch Joy-Con Drift|Nintendo Switch Joy-Con Drift|new_window=true]]
* [[Switch Pro Controller Joystick Drift|Switch Pro Controller Joystick Drift|new_window=true]]

中文

[title|Nintendo Switch 没有视频输出]

[summary]即便将Switch插入底座，显示器或电视上也没有画面出现？本页面帮你解决问题。[/summary]

[summary_image|2851600]

== 首要步骤 ==

在开始其他费事费力的检修方案之前，请先完成这些基础检查。

* 确认你的Switch机型支持视频输出。Switch Lite 机型专为掌机游玩模式设计，无法插入底座，并且无法输出视频信号。
* 强制重启主机。长按主机上的电源按键30秒，然后再按一下电源按键以开机。
* 如果故障间歇性出现，尝试更新系统软件。可以在 ''系统设置 > 系统 > 系统更新'' 中找到系统软件更新的选项。
* 除了更新主机系统软件，别忘了更新底座的固件。可以在 ''系统设置 > 系统 > 更新底座'' 找到更新底座固件的选项。该选项只有在主机插入底座是才会显示。
* 确认底座上的指示灯是否常亮绿色。该指示灯会提示底座是否检测到主机插入，以及是否有视频输出信号。
[product|IF145-793|Nintendo Switch 工具套组|type=featured]

== 异常显示设置 ==

虽然 Nintendo Switch 默认设置即可正常输出画面，但不经意的调节可能会导致异常。

* 在主屏幕，点选''系统设置 > 电视输出''。确保电视分辨率设定为自动或显示器支持的分辨率。如果你不确定，请参阅电视或显示器的说明手册。

== 底座连接异常 ==

虽然听上去有些可笑，但Switch底座对于线缆连接顺序有时十分挑剔。如果最近曾移动底座，或拔出过电源，确保按照下列顺序重新连接底座上的线缆。

# 关闭电视，断开底座上的所有接线，以及底座与电视之间的接线。
# 插入底座上的USB-C电源线。
# 插入底座上的HDMI线。
# 插入电视机上的HDMI线。
# 将Switch主机放入底座。
# 启动电视。
# 在电视上选择对应的视频输入。

按照上述顺序操作，你应该可以看到底座上的指示灯常亮绿色，意味着底座已经检测到主机插入，并且有视频信号输出。

== 底座与显示器之间的连接不良 ==

无画面输出的故障可能与主机无关。从主机到显示器之间有多段连接，需要逐段排除故障。

* 使用相同的HDMI线缆和接口，将其他已知正常工作的设备连接到电视。
* 如果电视无画面，请继续排除故障。尝试换用电视上的其他HDMI接口，或换用其他HDMI线缆。
* 如果电视画面正常，请检查底座是否正常工作。

== 底座故障 ==

确认显示器和线缆无故障后，请检查主机到电视连接的最后一环。底座包含两处传输视频信号的接口。

* 确认是否使用正版Nintendo底座。虽然正版价格更好，但Switch主机对于USB-C配件十分挑剔。使用原厂配件或许能够解决问题。
* 检查底座上的HDMI接口。仔细查看接口内部的触点是否弯曲损坏。
* 插入HDMI线缆后，尝试轻微晃动HDMI线缆，查看画面是否会偶然出现。如果可以，则说明接口与电路板之间存在接触不良的问题。
* 如果HDMI接口故障，说明[guide|146408|底座中的电路板需要更换|new_window=true]。确保选购正确的替换部件。标准版 Switch 和 Switch OLED 的底座略有不同。
* 如果底座上的指示灯不能保持绿色常亮，请检查其是否弯曲，以及是否有缺失的触点。因为底座的构造检查可能很困难，请使用手电筒。
** 卸下接口附近的弹簧保护机构可能需要用到塑料撬棒或其他工具。
* 如果部件损坏，[guide|150063|它们也可以单独更换|new_window=true]，但相较于底座的电路板，要更复杂一些。

== 充电接口故障 ==

Switch底部的USB-C接口承担多项功能，它既是Switch的充电接口，也是视频信号输出的接口。其中一项功能正常工作并不代表其他功能没有问题。

== 主板故障 ==

主板上包含主机正常工作的大多数元件。上面任何一个小元件都有可能故障或损坏。如果本页上其他解决方案不起作用，主板故障很可能是唯一原因。

* 检查主板故障的显著迹象 —— 烧毁或开裂的部件，液体痕迹，腐蚀，弯曲。[guide|95280|iPhone液体损坏指南页面|new_window=true]列举的常见液体痕迹也适用于Switch主板。

[image|2851541]

* 可以使用[guide|113292|主板更换指南|new_window=true]帮助你拆开主机，查看主板。
** 仔细检查PI3USB30532芯片及其周边的电路板。该芯片负责USB接口传输的视频输出信号，此芯片的损坏是主机无视频输出故障的主要原因。
* 无论主板出现物理损伤还是液体损伤，[parts|Nintendo Switch|更换全新主板|itemtype=motherboards]通常是DIY操作时的最佳选择。
** 与大众印象不同，主板是可以单独修复的。只不过这需要专业工具以及熟练的焊接经验。大多数人很难具备这些条件，但许多维修店铺可以替你完成。联系当地的维修店铺，咨询他们能否帮你完成修复。

== 相关页面 ==