Why does my Sharp LCD TV sometimes make a cracking sound?
- AAlexandra HughesSep 14, 2025
The cracking sound your Sharp LCD TV sometimes makes is not a malfunction.
Why does my Sharp LCD TV sometimes make a cracking sound?
The cracking sound your Sharp LCD TV sometimes makes is not a malfunction.
How to troubleshoot no sound on Sharp LC-70LE657U?
If there is no sound on your Sharp LCD TV, verify that the connection to other components is correct. Make sure the volume isn't too low and that you haven't pressed MUTE on the remote. Check the audio output of any connected external equipment to ensure the volume is not too low or muted. When external equipment is connected via an HDMI cable, you may need to configure the audio to be output through the HDMI cable. When audio is not output from external equipment connected to the PC IN or HDMI IN 2 terminal, check the "Audio Select" setting. Even when external equipment is connected using an HDMI-certified cable, an audio cable connection may be required depending on the type of equipment and the media being played back. When connecting a PC via an HDMI-certified cable, check if the audio...
Formal statement of product compliance with FCC regulations.
General details including FCC and Industry Canada compliance statements.
Specific precautions for power, overloading, and damage.
Guidelines for safe TV placement and child safety.
Safety instructions for wall or ceiling mounting.
Safety advice for relocating older CRT televisions.
List of items included with the TV.
List of accessories available for separate purchase.
Step-by-step guide to install the TV stand.
Guidance on obtaining and viewing high-definition content.
Identifies front, side, and rear panel parts.
Identifies buttons on the remote control.
Explains various connection methods.
Illustrates how to connect video, audio, and PC devices.
Connects disc players, set-top boxes, game consoles.
Connects surround systems and computers.
Basic power operation instructions.
Step-by-step guide for first-time TV setup.
Automatic channel tuning and internet connection configuration.
Controls for channels, volume, mute, freeze, input, flashback.
Operation of SmartCentral, Netflix, audio, sleep timer, AV mode.
Using closed captions and adjusting screen view modes.
How to use the TV's on-screen menu.
Identifies buttons used for menu control.
Adjusting image quality parameters.
Adjusting sound output and quality.
Configuring TV system settings.
Initial configuration steps.
Accessing TV and software information.
Settings for energy saving and auto power off.
Adjusting view settings and audio output terminals.
Managing apps, view modes, and audio/caption settings.
Setting a security number for settings.
Setting security numbers and parental restrictions.
Guided setup for channels, network, and favorites.
Updating TV software via USB or network.
How to display and view 3D images.
Adjusting settings for optimal 3D performance.
Connecting USB devices and network servers.
Selecting and playing media files.
Using control panels and setting up DivX/portable playback.
Presetting remote and operating connected equipment.
Operating HDMI devices and configuring AQUOS LINK.
Connecting smartphones for media viewing.
Connecting to the internet and initial setup.
Configuring network and IP settings.
Using web browser and internet applications.
Procedures for stand removal and wall installation.
Details on mounting hardware.
Troubleshooting for power, sound, and picture problems.
Troubleshooting for 3D images, errors, and software licenses.
Detailed technical specifications of TV models.
Specs and certifications for wireless features.
FCC/IC compliance and safety notes.
Warranty terms and conditions.
Physical size details for various TV models.
Formal statement of product compliance with FCC regulations.
General details including FCC and Industry Canada compliance statements.
Specific precautions for power, overloading, and damage.
Guidelines for safe TV placement and child safety.
Safety instructions for wall or ceiling mounting.
Safety advice for relocating older CRT televisions.
List of items included with the TV.
List of accessories available for separate purchase.
Step-by-step guide to install the TV stand.
Guidance on obtaining and viewing high-definition content.
Identifies front, side, and rear panel parts.
Identifies buttons on the remote control.
Explains various connection methods.
Illustrates how to connect video, audio, and PC devices.
Connects disc players, set-top boxes, game consoles.
Connects surround systems and computers.
Basic power operation instructions.
Step-by-step guide for first-time TV setup.
Automatic channel tuning and internet connection configuration.
Controls for channels, volume, mute, freeze, input, flashback.
Operation of SmartCentral, Netflix, audio, sleep timer, AV mode.
Using closed captions and adjusting screen view modes.
How to use the TV's on-screen menu.
Identifies buttons used for menu control.
Adjusting image quality parameters.
Adjusting sound output and quality.
Configuring TV system settings.
Initial configuration steps.
Accessing TV and software information.
Settings for energy saving and auto power off.
Adjusting view settings and audio output terminals.
Managing apps, view modes, and audio/caption settings.
Setting a security number for settings.
Setting security numbers and parental restrictions.
Guided setup for channels, network, and favorites.
Updating TV software via USB or network.
How to display and view 3D images.
Adjusting settings for optimal 3D performance.
Connecting USB devices and network servers.
Selecting and playing media files.
Using control panels and setting up DivX/portable playback.
Presetting remote and operating connected equipment.
Operating HDMI devices and configuring AQUOS LINK.
Connecting smartphones for media viewing.
Connecting to the internet and initial setup.
Configuring network and IP settings.
Using web browser and internet applications.
Procedures for stand removal and wall installation.
Details on mounting hardware.
Troubleshooting for power, sound, and picture problems.
Troubleshooting for 3D images, errors, and software licenses.
Detailed technical specifications of TV models.
Specs and certifications for wireless features.
FCC/IC compliance and safety notes.
Warranty terms and conditions.
Physical size details for various TV models.
| Screen Size | 70 inches |
|---|---|
| Display Type | LCD |
| Backlight Type | LED |
| Resolution | 1920 x 1080 |
| Smart TV | Yes |
| Refresh Rate | 120 Hz |
| HDMI Ports | 4 |
| USB Ports | 2 |
| Built-in Wi-Fi | Yes |
| Audio Output | 20W (10W x 2) |












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