Modern TVs have a built-in service mode for adjusting picture parameters. In service mode, you can also diagnose the TV. Remember the current settings before making any changes.
Instructions
Step 1
Incorrect parameter settings can lead to loss of video signal, so the algorithm for entering the service mode is not easy. Find out your TV model. This alphanumeric code can be found both on the TV itself and on the packaging of the device or in the accompanying documentation. Review carefully all the documents that were provided with the TV. For each TV model, the algorithm of actions is different.
Step 2
Go to the search engine and enter your TV model and the words "service mode". Service sites like https://master-tv.com/article/servise/ provide a sequence of steps for almost all common TV models. It is also worth noting that there are a large number of different video instructions on the Internet that allow you to adjust the settings of TVs.
Step 3
Find your device model in the alphabetical list. Repeat this sequence of steps exactly to start the service mode for setting up the TV. So for the Samsung TV models CS-721 and CS-723, you need to sequentially press the buttons on the remote control Picture Off, Sleep, P. Std, Mute, Picture On. The remote control may have a button called Menu or something similar. Look carefully at the buttons on the remote control and read the instructions.
Step 4
Adjust the TV settings. Exit the service mode using the method provided for your model. Most often, for this you need to press the button to turn off the TV. It may be worth contacting a specialist to fine-tune your TV. The service center will help you restore the previous settings if they were changed incorrectly, and also adjust the image according to your wishes.
