Identifying the Issue
If you're facing a blank TV display, the first step is to identify the issue. Start by checking if the TV turns on and if there is any power going to it. Look for any lights or indicators that show the TV is receiving power. If there are no signs of power, check if the power cord is securely plugged into the outlet. Additionally, make sure that the power outlet itself is functioning properly by plugging in another device.
If the TV is receiving power but still displaying a blank screen, the issue might be with the input source or the display settings. Proceed to the next steps to troubleshoot further.
Troubleshooting Remote and Input Source
If the TV turns on and all connections are secure, the issue might be with the remote or the selected input source. First, check if the TV remote is functioning properly. Ensure that the batteries in the remote are not dead or low, and try pressing various buttons to see if the TV responds.
If the remote seems to be working fine, focus on the input source. Use the TV remote to select different input sources, such as HDMI, AV, or Component. Start with the default input source, which is often HDMI 1. Switching to a different input source might trigger the display to appear.
Checking Power and Connections
Before diving into more complex troubleshooting steps, ensure that the TV is properly connected to power and all necessary cables are securely plugged in. Start by checking the power cord and make sure it is firmly connected to both the TV and the power outlet. If the TV is connected to a power strip, ensure that the power strip is turned on.
Ensure that the HDMI or other video cables are securely connected to both the TV and the external device. Consider unplugging and then reconnecting the cables to ensure a proper connection though only do so if the TV and other devices are turned off - NEVER unplug or connect HDMI /VGA cabling while it's powered on. There is no reason to touch anything in the AV rack if unsure as this requires onsite technician to assist and troubleshoot, the instructions to check the connections are purely behind the actual TV(s) that is affected.
Possible transmitter/reciever failure
If your TV is powered on, displaying a menu or screen, and set to the correct input source, but you're still experiencing issues, it could be related to a problem with the transmitter and receiver setup. These components are typically used in TVs with cable lengths exceeding 10-15m from the source. Look behind your TV for a small powered device (look for a red power light). If there's no power indicator, the device may have malfunctioned or the power supply unit may have blown. Like any electronic device, these components can fail due to heat or power issues and may need to be replaced.
If the power light is on the receiver but not on the transmitter, the issue likely lies at the transmission end where your other audiovisual equipment is located (e.g., AV rack or cupboard). Identify the transmitter without lights as the one that has failed if the problem is at the transmission end.
In both cases, make sure to provide detailed information in a support ticket submission. We will escalate the matter to a technician and provide them with the necessary details for a speedy diagnosis and resolution.
Inspecting Display Settings
If the TV is still displaying a blank screen, it's worth checking the display settings. Use the TV remote to access the menu or settings options. Look for any settings related to the display, such as brightness, contrast, or picture mode. Resetting the display settings to their default values might resolve the issue.
Additionally, check if there are any specific settings related to the input source you're using. For example, if you're using HDMI, there might be settings for HDMI input or HDMI compatibility. Make sure these settings are properly configured.
Seeking Professional Help
If you've tried all the troubleshooting steps mentioned above and the TV display is still blank, it might be time to seek professional help. Consider contacting the manufacturer's customer support or a professional TV repair service. They will have the expertise to diagnose and fix any hardware or software issues that might be causing the problem.
Before seeking professional help, check if your TV is still under warranty. If it is, you might be eligible for free or discounted repairs. Gather any relevant warranty information and contact the manufacturer for assistance.
If purchased via wedooh, we can supply you with the relevant information so you can make contact with the correct manufacturer's warranty claim divisions. All our commercial panels come with 3 yrs manufacturer's warranty, so contact us directly to assist with escalating a warranty repair procedure or booking a service technician to troubleshoot onsite.