Asus ZB551KL, Training & Trouble Shouting Manual

Page: 33 / 69

Can’t HW Reset
•
Press power key ~10 sec
，
PM_RESIN_N keep at
1.8V level
，
without release to low pulse
– Check R1309 is Open ?
– Check U1101 appearance and X-ray
，
Try to re-heat
or replace a new device
• PM_RESIN_N keep at 0V level
– Check PM_RESIN_N short circuit to GND?
– Check U1101 appearance and X-ray
，
Try to re-heat
or replace a new device
– Check U0501 appearance and X-ray
，
Try to re-heat
or replace a new device