Lenovo HORIZON 2s, Maintenance Manual, Page: 36 / 57

Step 8. Disconnect the transform board and LVDS cables from the related connectors on the motherboard,
and then separate the rear cover from the panel.
Step 9. To reattach the rear cover:
a. Line up the rear cover with the front bezel and reconnect the two cables.
b. Line up the holes on the rear cover with mounting holes on the front bezel, and place the rear
cover into position.
c. Secure the rear cover to the front bezel with the screw.
d. Reattach the rubber cap.
Replacing the battery
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the base cover.
To replace the battery:
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”.
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Lenovo HORIZON 2s All-In-One PC Hardware Maintenance Manual