Lenovo IdeaCentre B750 All-in-One User Manual
Page 56
Step 16. Remove all the cables connected to the motherboard, including:
a.
LVDS cables
b.
Hard disk drive power and SATA cables.
c.
Optical disk drive power and SATA cables.
d.
Power supply cables
e.
Converter cable
f.
Speaker cable
g.
Subwoofer cable
h.
Camera cable
i.
Power board cable
j.
Front function board cable
k.
Front indicator board cable
l.
B-CAS card cable
Step 17. Remove the four screws that secure the motherboard to the chassis and lift up the motherboard
as shown.
Step 18. To install the new motherboard:
a.
Line up the motherboard with the chassis, then secure it with the screws.
b.
Insert the notched end of the TV-Tuner card into the card port on the new motherboard and
secure it with the screw.
c.
Insert the notched end of the Wi-Fi card into the card port on the new motherboard and
secure it with the screw.
d.
Install the CPU to the new motherboard and secure the CPU in the socket, close the CPU
retainer and lock it into position with the small handle.
e.
Install the memory module(s) to the new motherboard.
f.
Install the heat-sink to the new motherboard.
g.
Install the system fans to the new motherboard.
h.
Connect the antenna cable(s) to the TV-Tuner card.
i.
Connect all the cables to the new motherboard.
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IdeaCentre B750Hardware Maintenance Manual