Help!NEC Laptop No Display

[bisayang teknoy]

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i have a NEC Lavie NX LV13C laptop
no display at all,no bios, no os, no boot up
power is on, i think its stuck in stanby mode.
tried several ways pressing F2 combo and others.
tried opening the mobo and others looking for losse contact
tried plugging into extrnal monitor
nothing seems to work
PLS. help any advises, will greatly appreciate for suggestions/advises

[gtjr_ph]

i check ang ram, pangita ug kahuwaman para testing..