With the continuous development of science and technology, even low configuration cars can see the figure of car navigation. However, some friends said that the car navigation screen was black, even if the screen was restarted, it would not work. So, how to repair the navigation if it can't be turned on? If you want to know the answer, go ahead.

汽车导航屏幕出现不能开机的现象，很大可能是因为线路接触不良，需要及时检查一下线路是否出现虚接的情况。如果有的话自然会导致屏幕黑屏，这时候只要将其虚接的部位连接完好即可。当然，也可能是因为电源信号线出现老化了，可以尝试更换一条新的上去，如果导航能够开机的话，就说明的确是电源信号线存在问题了。

The phenomenon that the car navigation screen can not be turned on is very likely due to poor line contact, so it is necessary to check whether the line has virtual connection in time. If there is, it will naturally lead to a black screen. At this time, as long as the virtual connection part is well connected. Of course, it may also be that the power signal cable is aging. You can try to replace it with a new one. If the navigation can be turned on, it means that there is a problem with the power signal cable.

那么，如果检查了上面两种情况之后，导航屏幕依然还是开不了机的话，那应该就是屏幕使用时间过长的缘故，导致供电模块出现故障，不仅存在卡顿的情况，严重的话就是我们今天所说的黑屏现象了。当然，也可能是因为电路设计存在缺陷。但像这种模块异常和设计缺陷的问题，已经超出我们的解决能力范围之内了，需要到维修店进行检查维修或直接更换才可。

Then, if the navigation screen still can't be turned on after checking the above two conditions, it should be because the screen has been used for a long time, which leads to the failure of the power supply module. It is not only the situation of jamming, but also the black screen phenomenon that we call today. Of course, it may also be because of circuit design defects. However, such problems as module abnormalities and design defects are beyond our ability to solve. We need to go to the repair shop for inspection and repair or direct replacement.