Screen Control Problems 170 Symptoms / Problem Condition Verification Method / Countermeasures There is no response even if you touch the touch panel. Take the following countermeasures. If the product does not respond even if you touch the screen, take the following countermeasures. 1. Wait one minute and touch the touch panel again. 2. If the product still does not respond, unplug the power plug from the outlet and wait 10 seconds. 3. Plug the power plug into the outlet and turn the power on.