Accept aspire one, No display

[DProf.]

Hello great engineers pls I need help I have this accer aspire one that customer brought to me the system is coming on normally but it doesn't display the screen is perfectly fine, the ram is ok. I have flash the bios but the problem remain the same. Below is its board number: PAV70 LA-6421P REV:1.0 PLEASE ANY SOLUTION? HELP PLEASE!

[mcplslg123]

Re: Accept aspire one, No display

Does numlock glows on usb kbd?? You need to measure voltage on all coils to begin with. Without any measurements, it's useless to give any advice.