What's the reason for the car screen not lighting up?

[AmyMarie]

The reasons why the car screen is not lighting up are: 1. Poor line contact; 2. Aging of the power signal line; 3. The screen has been used for too long, causing the power supply module to malfunction, not only resulting in lag but also severe black screen phenomenon; 4. There are defects in the circuit design. The car central control screen is a car appliance with a relatively high failure rate. After long-term use, the screen may experience lag or black screen. The solutions are as follows: 1. Reconnect the loose parts of the line properly; 2. Replace with a new power signal line; 3. Go to a repair shop for inspection and repair or directly replace the power supply module.