Checking
the AC adapter
You are here because the computer fails only when the AC adapter is used.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
If the computer does not charge during operation, go to “Checking operational charging”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following fgure:
You are here because the computer fails only when the AC adapter is used.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
If the computer does not charge during operation, go to “Checking operational charging”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following fgure:
Note: Output
voltage for the AC adapter pin No. 5 may differ from the one you are servicing.
3.
If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect.
4. If the voltage is acceptable, do the following:
Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect.
Checking
operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon is not lit, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator is still not lit, replace the system board.
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon is not lit, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator is still not lit, replace the system board.
Restore
of factory default
The Lenovo YOGA 710-14ISK/Lenovo YOGA 710-15ISK/Lenovo YOGA 710-14IKB/ Lenovo YOGA 710-15IKB computer comes with pre-installed OneKey Recovery System.In order to save application fles and the initial backed up fles of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped.
If you need to restore the system to the point of your frst boot up, just enter Lenovo OneKey Recovery System and run System Recovery. For details of OneKey Recovery System, see the User Guide for Lenovo OneKey Recovery system.
The Lenovo YOGA 710-14ISK/Lenovo YOGA 710-15ISK/Lenovo YOGA 710-14IKB/ Lenovo YOGA 710-15IKB computer comes with pre-installed OneKey Recovery System.In order to save application fles and the initial backed up fles of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped.
If you need to restore the system to the point of your frst boot up, just enter Lenovo OneKey Recovery System and run System Recovery. For details of OneKey Recovery System, see the User Guide for Lenovo OneKey Recovery system.
DISASSEMBLING
PROCEDURE
Base
cover
Remove the screws 1 and 2
Remove the screws 1 and 2
Insert
a prying tool (Disassembling blade) between the base cover and C cover and
slide it in the direction shown by arrows 3 to separate the base cover from C
cover.
Remove
the base cover 4.
Battery
pack
Unplug
the battery connector 1 and remove the screws 2. Then remove the battery pack
3.
Solid
state disk
Remove
the screw 1
Remove
the solid state disk in the direction shown by arrow 2.
