There is an Acer laptop which has no display. Motherboard is LA-9531P.CPU and Graphic card are heated in another repair shop which is the cause of another problem. In this video you can see the steps of troubleshooting and repairing laptop.
First of all I check DC input which means the driver MOSFETs and the resistors. They are apparently ok and don’t seem to have a problem. So I decide to turn ON motherboard but since LED light doesn't turn ON, it means that motherboard has disconnection. In this situation components overheat. So I should find the overheating component and check if it has disconnection or another part causes it to overheat…
To solve this problem and see the troubleshooting and repairing process, Watch the video bellow
Good luck
Video Size: 237 mb
Video Time: 24:44 min
First of all I check DC input which means the driver MOSFETs and the resistors. They are apparently ok and don’t seem to have a problem. So I decide to turn ON motherboard but since LED light doesn't turn ON, it means that motherboard has disconnection. In this situation components overheat. So I should find the overheating component and check if it has disconnection or another part causes it to overheat…
To solve this problem and see the troubleshooting and repairing process, Watch the video bellow
Good luck
Video Size: 237 mb
Video Time: 24:44 min