What's the matter with the navigation screen being black but still having sound?
1 Answers
Navigation screen being black but still having sound may be due to a loose power plug of the navigation display; it could also be caused by a damaged touch screen. If the touch screen is functioning normally, then check for issues with the display screen. Inspect the touch circuit to confirm if there are any problems with the wiring. If no issues are found, consider whether the decoding chip or core module is not working or is damaged. Here is more information about car navigation: 1. Car navigation systems have GPS global satellite positioning functionality. Drivers only need to input the destination into the car navigation system. The system will automatically calculate the most suitable route based on electronic maps and remind the driver to follow the calculated route during the vehicle's movement (for example, before turning). The car GPS navigation system consists of two parts: one part is composed of the GPS receiver and display device installed in the car; the other part is the computer control center, with the two parts connected via positioning satellites. 2. Most car navigation systems use a visual display system as the human-machine interface. Some provide voice systems, allowing people to directly converse with the navigation system and receive voice reminders on when to turn or exit the highway. Some can also provide the car owner with a map of the traveled route for the return trip. Some car navigation systems can display in different languages and can inform the driver of local speed limits, road conditions, and the car's average speed, estimating the time of arrival at the destination for the driver.