Do Speakers Affect LCD TVs? (Answered)

LED and LCD televisions use static voltages instead of electron beams to produce images, reaching and lighting different phosphor spots on the screen to produce colors.

Are speaker magnets strong enough to interfere with this process? No. Speaker magnets do not damage LCD or plasma TV screens in any way.

Magnetic Fields

People often worry about placing speakers close to their television due to magnetic fields they produce, dating back to when CRT TVs (Cathode Ray Tube) were the standard form. CRT sets produced images by bombarding phosphor-coated screens with electron beams guided by electromagnets; when their electrons hit certain spots at exactly the right moment on screen, an image appeared.

LCD, plasma and OLED televisions were eventually developed as viable replacements, using different techniques for creating their images than older TV models used to. Modern LCD, plasma and OLED models don’t rely on magnetic fields or electron guns to show pictures; as such they’re unaffected by magnets that may exist in speakers; yet keeping magnets near these types of TVs still shouldn’t be recommended.

Electromagnetic Interference

Electromagnetic interference, or EMI/RFI, is a serious threat to electronic devices that may result from both manmade and natural sources of electromagnetic radiation.

Conducted electromagnetic interference (EMI) occurs when electromagnetic fields travel along physical conductors such as wires and cables, creating magnetic fields which travel along them and can transfer through them into electrical devices like power cords, audio cables and other electrical gadgets. Conducted EMI may affect devices connected via these same conductors even if they’re turned off, potentially interfering with their performance and even potentially interfering with each other’s operations.

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Radiated electromagnetic interference (EMI) is an even more serious problem that can come from several of the same sources as conducted EMI. For instance, it can come from overhead power transmission lines, AM/FM radio transmitters, radar systems and microwave ovens; speakers without adequate shielding may also emit radiation that interferes with other devices nearby. Radiated EMI has the ability to spread in all directions, disrupting even devices far away.


Distorted signals can make the picture appear fuzzy, grainy or out-of-focus, depending on a number of factors such as the content being played back or speakers being utilized; it could also indicate a malfunction with your TV set itself.

Distortion may also occur when using a degausser, as its magnetic field can have an adverse impact on the screen and lead to distortion. To avoid this happening, keep its coil at an appropriate distance from your TV in order to ensure optimal results.

Distorted sound can often be caused by reflections from walls, furniture or other sources such as walls. These reflections can make the sound muddy and colored. Distortions may also result from speakers being overloaded – in such a case reducing volume may help – though if it persists it may be necessary to replace the speaker by gently pulling its LVDS cable from its connection port on T-Con board and connecting new cable from there onto both T-Con board and main board simultaneously.


Old cathode ray tube televisions were dependent on magnetic fields for creating their images, so placing a magnet near one would divert its electron beam and distort its picture. Today’s high-tech LED televisions are far superior.

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Unfortunately, even LED TVs can become damaged through other factors. One such form of damage is known as screen burn-in; this happens when an image remains static on the screen for too long and eventually becomes permanent.

Dust buildup can also cause permanent damage, so to protect yourself from this, be sure to regularly clean out your LED TV’s vents and ports using an oil-free microfiber cloth or duster to wipe down its vents, connectors, and any other areas that might collect particles that could build up and cause electrical shorts. This will keep dust particles from gathering on surfaces that might potentially short out.

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