Lenovo Horizon 2 27 Table PC IdeaCentre - Manual (Page 39)

Step 7. Remove the two screws that secure the power switch board to the rear cover 1 , lift up the power
switch board 2 and disconnect the cable from the switch board. 3
Step 8. To install the power switch board:
a. Connect the power cable to the new power switch board.
b. Secure the power switch board to the rear cover with the two screws.
c. Reconnect the battery cable to the connector on the motherboard.
Step 9. Reattach the rear cover.
Replacing the motherboard
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the base cover.
To replace the motherboard:
Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to “Left and right view”
and “Rear view” for help with locating the various connectors.
Step 4. Remove the rear cover. Refer to “Removing the rear cover”.
Step 5. Disconnect the battery cable from the connector on motherboard. Refer to “Replacing the battery”.
Step 6. Remove the memory modules. Refer to “Replacing a memory module”.
Step 7. Remove the heat-sink modules. Refer to “Replacing the heat-sink modules”.
Step 8. Remove all the cables connected to the motherboard. 1 2 3 4 5 6 7 8
Chapter 7 . Replacing hardware 33