lenovo z400 switch board shorted

[tomrush]

i have lenovo z400 switch board. can't identify which is shorted. i tried to remove the flex cable and put it back tried to remove the diode in U1 still when i put back this switch board in the mainboard. no power will come in or the led indicator of the charger will shut down.i have attach the picture of the switch board. thank you please help me.

[cyberhack]

Re: lenovo z400 switch board shorted

I would start at page 47 then 49 check for shorts.