Case study :

Board NM-A981
PROBLEM: BOARD TRIP ISSUE.
Normally 0.019 amp show kar raha hai dc jack insert karne k baad.

Power button press karne k baad 0.027amp. ja raha hai fir 0.005amp tak down ho raha hai and normal 0.019amp. pe stable ho raha hai.

Solution: iss board pe 3v,5v alw supply banta hai dc jack insert karne k sath hi. Jo ban Raha tha but trip hone k baad kuch second k liye 3v,5v alw supply off ho raha hai..
Sir ka class se ye sikha tha stepdown ic load nehi le raha hai. Isliye sidha 3v wala stepdown ic replace kar diya problem solved.

Thanks
Swatika Laptop Care
West Bengal , East Medinipur
Contact - 6294538762

"BOARD TRIPPING TROULESHOOTING CLASS"