Can HDMI Cause Damage To A Smart TV? ( EXPLAINED)

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HDMI cables have been a mainstay in homes for years now. They connect everything from your AVR to your computer, and even large devices like TVs or media centers.

Unfortunately, there are growing concerns about HDMI cables causing damage to the TV’s HDMI connection port.

As a general guide, an HDMI cable can not damage the TV screen. These cables are designed to carry digital signals from single or multiple sources to the output (smart TV) without causing any damage.

However, the only time an HDMI cable can cause damage to the TV’s HDMI port is when it is connected to active HDMI cables that are known to carry either 3.0 volts (for HDMI 1.4) or 5.0v (for HDMI 2.0) instead of using a regular HDMI cable.

Generally, active HDMI cables will be labeled as such and your gadget will not need an electric cable if the active HDMI cable in use is rated for up to 60W/5A, it can be used safely on an HDMI connection.

Recall that when charging iPhones and iPads, the charger will provide between .5A and 2.1A depending on the age of the unit, and the device itself (some devices won’t draw more than 1 amp). While computer USB ports can provide up to 2 amps , that is typically not recommended.

Using a high wattage charger with an iPhone or iPad will likely cause issues like unexpected shutdowns, and if you go wrong with HDMI cables, one of which is damage to the TV connected via this cable. Here’s what you need to know about HDMI damage and how you can avoid any damage that may occur long-term.

HDMI cables can cause damage to the TV if they are an active HDMI cable (this is the case with most of the “cable for charging” options) , so you need to be aware of what sort of power these cables are carrying.

Since they are designed for high-power applications, they carry voltage through the cable itself instead of using a separate power cord – which can be confusing.

In most cases, active HDMI cables still carry 5v of voltage, but some high-end models on the market use 3.0 volts instead, so it’s important to check on this if you have an older TV on board before using any sort of charger on its screen via HDMI cable.

Overall, a good HDMI cable widely used for applications like daisy-chaining monitors will not cause any damage to the television. However, you may have a faulty HDMI cable in some circumstances. The extent to which this HDMI cable might cause harm to your system is dependent on how badly the HDMI is damaged.

Signal difficulties like lag may be caused by damaged cables, which is why they should be repaired immediately. In most cases, if your HDMI cable is not damaged, there will be no harm done to your television.

A faulty HDMI cable, on the other hand, may cause harm to both the picture and audio. For example, you could hear a scraping sound as a result of this. The HDMI cables may have an impact on your gaming systems or media players as well. To avoid any possibility of damaging your television, it is highly recommended that you ensure the quality of your HDMI cables.

It’s also extremely vital to constantly ensure that your HDMI cable is connected in the proper method since every HDMI receiver and cable is different from the other. Always be sure you use an HDMI cable that is compatible with your receivers.

How faulty HDMI cables may cause harm to your television

The level of damage that HDMI cables can cause to your television is based upon several elements. This damage may be caused by an accident in certain circumstances, but it can also be caused by your actions in other situations. The following are some of the factors that might cause these HDMI cables to cause harm to your television.

Attempts to repair the HDMI cable on your own. When you first come across a faulty HDMI cable, you may believe that the poor signal you are receiving is because there is a problem with the HDMI cable. Many individuals may be tempted to try DIY repairs to see if they can resolve the problem on their own.

A defective HDMI cable may further increase the risk of the receiver or other receiving device malfunctioning when used. Using power surge protectors to assist in preventing power surges is a wonderful idea if you want to avoid the harm that a malfunctioning cable might do.

How to prevent HDMI cables from damaging your TV


Before you put your HDMI cables through their places, there are several key factors to consider for on them first. You will be able to pin down the issues with the cabling much more quickly when you do this. If your wire has been coiled, you must unravel it to resolve any issues that may have arisen.

Over-wrapping certain cable types is not advised whenever it comes to their performance characteristics. You may end up damaging the inside the cable’s interior elements, often, the sensitivity of these elements is high than previous cables because they transport a lot data.

Examine the Connectors for Compatibility. Remember these cables may be purchased with a variety of connectors. You must make certain that the cables you purchase are compatible with the ports on your television.

Replace HDMI cables with whole different HDMI cables from some other audio system, such as those from speakers or the other Television. Another thing you may try is getting another HDMI cable from other devices in your home.

Additionally, if you have a digital projector, it might be coming from the wires assigned for it. If the system begins operating quickly after a cable swap, you’ll be able to determine whether or not your previous cable was defective.

Unlike other types of cables, HDMI cables are not susceptible bends, they will experience transmission troubles if enough damage to the cable has occurred, culminating in bends, to cause transmission problems. Therefore, if you try straitening out and ensuring that your cable is not bent may often save you the cost of purchasing an entirely new cable.



A great HDMI cable will not cause any harm to your television. It is also possible that your TV may be damaged by an HDMI cable that is not working properly. In contrast, the quality of the sound and the images shown on your television may be affected by the faulty HDMI. As a result, you must have a high-quality HDMI cable.

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