AW: The Z-N956 has in the device settings menu, two selectable control options for the automatic TFT display brightness adjustment. At the device, go to: Setup > TFT > TFT Control > „Car“ or „Navi“.
As factory default setting, „Car“ is enabled which means that the device dims the screen when low or high beam is activated. For the “Car” based TFT screen brightness control, the „Illu signal“ at the ISO-connector is used. Daytime Running Lights with TFT Control set to “Car” mode will therefore cause dimmed screen.
Users driving with daytime running lights should set the TFT Control to „Navi“, so that the day/night time zone data is used to control TFT screen brightness. Note: The „Navi“ setting will cause the device to start up in night mode until an actual GPS time signal for device master clock is obtained via GPS downstream. This may take up to 30 seconds.