What's the reason for a car navigation screen going black with sound?
1 Answers
Here are the specific reasons and solutions for a car navigation screen going black with sound: 1. Check if the power supply to the display screen is normal. If the power supply is abnormal, replace the power supply module. 2. Check if the cable connection is good. If there is poor contact in the wiring, promptly inspect whether there is a loose connection causing the central control screen to go black, and securely reconnect the loose parts. 3. Check if the display screen is damaged by replacing it for testing. If it returns to normal, the display screen is damaged. If the power supply is normal and the cable connection is good, check the video output signal of the motherboard and test by replacing the motherboard.