The position of the touch panel response may become misaligned due to longtime use, etc.
If tapped items return wrong or no response, please perform the following procedures.

 

1. Turn "OFF" the power.

2. Turn "ON" the power.

3. When the title "UV-1900 series" is displayed, immediately tap the screen with the touch pen, and keep touching for more than 3 seconds.
  The adjustment window is displayed.

 

4. Tap the center of the frame displayed at the upper left of the screen.

  

  When it is tapped correctly, a frame appears at the upper right of the screen.

 

5. Tap the center of the frame displayed on the screen in turn.
  The frame appears in the order of the lower left, the lower right, and the center of the screen.
  When tapping the center of the frame displayed on the center of the screen, adjustment is completed.
  Next, check the setting.

6. Tap [OK].