Lenovo Ideapad E490 Hardware Maintenance Manual page 61

Table 10. System board
Item Connector (location)
1
LCD connector
(internal)
2
Wireless-LAN card slot
(internal)
3
USB-C connector
(external)
4
HDMI connector
(external)
5
Always On USB 3.1
connector Gen 1
(external)
6
USB 3.1 connector Gen
1 (external)
7
Audio connector
(external)
8
Coin-cell battery
connector (internal)
9
Speaker assembly
connector (internal)
10
Trackpad connector
(internal)
11
Memory module slot
(internal)
12
Built-in battery
connector (internal)
13
Hard disk drive
connector (internal)
14
Fingerprint reader card
connector (internal)
15
M.2 solid-state drive
connector (internal)
16
I/O card cable
connector (internal)
54
E490 and R490 Hardware Maintenance Manual
Internal cable required
LCD cable
No
No
No
No
No
No
Coin-cell battery cable
Speaker assembly cable
Trackpad cable
No
Built-in battery cable
Hard disk drive cable
Fingerprint reader card
cable
No
I/O card cable
Cable connection
Connect one end to the LCD panel and the other end
to this connector.
Insert the wireless-LAN card into this slot.
Connect a USB-C compatible device to this
connector.
Connect a compatible digital audio device or video
monitor to this connector.
Connect USB-compatible devices to this connector.
Connect USB-compatible devices to this connector.
Connect headphones or a headset with 3.5-mm
(0.14-inch) 4-pole plug to this connector.
The coin-cell battery comes with cable. Connect the
cable to this connector.
The speaker assembly comes with cable. Connect
the cable to this connector.
Connect one end to the trackpad and the other end
to this connector.
Insert the memory module into this slot.
The built-in battery cable comes with the cable.
Connect the cable to this connector.
Connect one end to the hard disk drive and the other
end to this connector.
Connect one end to the fingerprint reader card and
the other end to this connector.
Connect the M.2 solid-state drives to this connector.
Connect the I/O card cable to this connector.