Lenovo IdeaCentre A300 IdeaCentre A300 Hardware Maintenance Manual - Page 42

Replacing the motherboard

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Hardware Maintenance Manual 6. Pull out the WLAN card. 7. Align and then insert the new WLAN card to the card port. 8. Screw the new WLAN card back. 9. Screw back the motherboard cover and install the base top cover. 10. Screw the hinge back to the LED panel. 11. Slide the hinge cover in then push it back. Replacing the motherboard To replace the motherboard 1. Remove the hinge cover. Refer to "Removing the hinge cover". 2. Remove the hinge from the LED panel. Refer to" Removing the hinge from the LED panel" 3. Remove the base top cover. Refer to "Removing the base top cover". 4. Remove the motherboard cover. Refer to "Removing the motherboard cover". 5. Remove the hard disk. Refer to "Replacing the hard disk" 6. Remove the system fan. Refer to "Replacing the system fan". 7. Remove the heatsink. Refer to "Replacing the heatsink". 8. Disconnect all the cables connect to the motherboard. 9. Remove the bluetooth module. Refer to "Replacing the bluetooth module". 10. Remove the memory module. Refer to "Replacing a memory module". 11. Remove the TV tuner card. Refer to "Replacing the TV tuner card". 12. Remove the WLAN card. Refer to "Replacing the WLAN card". 13. Remove the 7 screws that secure the motherboard to the base bottom. 40

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Hardware Maintenance Manual
40
6.
Pull out the WLAN card.
7.
Align and then insert the new WLAN card to the card port.
8.
Screw the new WLAN card back.
9.
Screw back the motherboard cover and install the base top cover.
10. Screw the hinge back to the LED panel.
11. Slide the hinge cover in then push it back.
Replacing the motherboard
To replace the motherboard
1.
Remove the hinge cover. Refer to “Removing the hinge cover”.
2.
Remove the hinge from the LED panel. Refer to” Removing the hinge
from the LED panel”
3.
Remove the base top cover. Refer to “Removing the base top cover”.
4.
Remove the motherboard cover. Refer to “Removing the motherboard
cover”.
5.
Remove the hard disk. Refer to “Replacing the hard disk”
6.
Remove the system fan. Refer to “Replacing the system fan”.
7.
Remove the heatsink. Refer to “Replacing the heatsink”.
8.
Disconnect all the cables connect to the motherboard.
9.
Remove the bluetooth module. Refer to “Replacing the bluetooth
module”.
10. Remove the memory module. Refer to “Replacing a memory module”.
11. Remove the TV tuner card. Refer to “Replacing the TV tuner card”.
12. Remove the WLAN card. Refer to “Replacing the WLAN card”.
13. Remove the 7 screws that secure the motherboard to the base bottom.