This guide covered the best steps to take in resolving the Hisense TV won't turn on issue. When your Hisense TV won't turn on, try Checking the power source, remote, and cables, then try resetting the TV, updating the firmware, and checking the internal components. 

Tips these tips when Hisense TV Won't Turn On includes:

• Check The Power Source: The first step is to make sure your Hisense TV is plugged in properly. Check the power source and any power strips or surge protectors that may be in use. Make sure the outlet is working and try unplugging the power cable and plugging it back in to see if that helps.
• Check The Remote: If your Hisense TV is still not turning on, then you should check the remote to make sure it’s working properly. Make sure the batteries are fresh and that the remote is in the correct mode for your TV. You can also try using the power button on the remote to see if it will turn the TV on.
• Reset The TV: If the power source and remote are both in working order, then you should try resetting the TV. To do this, unplug the power cable from the wall, wait for a few seconds, then plug it back in. This will reset the TV and hopefully get it up and running again.
• Check The Cables: Make sure all the cables connected to your TV are securely connected. Check the HDMI cables, power cables, and any other cables connected to the TV. Also, if you're using an antenna, make sure it's firmly connected to the TV.
• Check The TV Settings: Sometimes, the settings on the TV can cause it to not turn on. To check the settings, press the "Menu" button on the remote and then navigate to the "Settings" menu. You can then check the settings to make sure they are correct.
• Check For Firmware Updates: If the settings are all correct, then you should check to see if there are any firmware updates available for your Hisense TV. To do this, press the "Menu" button on the remote and navigate to the "System Update" menu. If there is an update available, install it and then try turning the TV on again.
• Check The TV's Internal Components: If none of the above steps work, then you may need to open up the TV and check the internal components. Make sure all the cables are securely connected and that none of the components are damaged or loose. If you find any problems, you may need to replace the part or take the TV to a repair shop.