GRUNDIG ARGANTO 70 SERVICE MODE
- Turn ON the TV.
- Decrease the Volume Level to minimum [0].
- Press and Hold the 'Mute" button on the remote control
- While press and hold the Mute button on the remote control, press 'Mute" button on the Front Panel of the TV.
- The 'Mute' sign on the screen will turn to 'Yellow' color.
- Software version will be displayed on the screen.
- To select an item to adjust, press 'Menu' button.
- To adjust the data value to selected item, use Volume +/- button.
- To save the settings, press 'Recall' button.
- To "Exit" the service mode press "Still".
