Technical Support Dell latitude 7480

[user46647]

please i need help laptop power plug in and laptop on off no display
CAZ20 LA-E132P
REV:2.0 (A01)

 

[Ahmad Safari]

Hello
According to you, your laptop turns on but has no image.
Check step by step:
1-Check if it has a picture with CRT output?
2-Clean the RAM or install another RAM and test.
3-Disconnect parts such as hard drive, Wi-Fi, keyboard, etc. and test again.
4-Measure the voltage from the motherboard according to the schematic and check that the voltage on the motherboard has not dropped.
5-If all the parts are separated and the motherboard with RAM and CPU does not have an image, program the BIOS at this stage.