Lenovo Horizon 27 Table PC IdeaCentre Horizon 27 All-In-One PC Hardware Mainte - Page 39
Replacing the system fans, Reconnect the battery cable to the connector on the motherboard.
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Step 1. Step 2. Step 3. Step 4. Step 5. Step 6. Step 7. Step 8. 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. Unplug all power cords from electrical outlets. 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. Remove the rear cover. Refer to "Removing the rear cover". Remove the EMI cover. Refer to "Removing the EMI cover". Disconnect the battery cable from the connector on motherboard. Refer to "Replacing the battery". Remove the four screws that secure the speaker system to the chassis. Disconnect the speaker cable from the connector on the motherboard. Step 9. To install the new speaker system: a. Attach the new speaker system to the chassis, then secure it to the chassis with the four screws. b. Connect the new speaker cable to the connector on the motherboard. c. Reconnect the battery cable to the connector on the motherboard. Step 10. Reattach the EMI cover and rear cover. Replacing the system fans Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the base cover. To replace the system fans: Step 1. Step 2. Step 3. 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. Unplug all power cords from electrical outlets. 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. Chapter 8. Replacing hardware 33