Lenovo ThinkPad T490s Hardware Maintenance Manual page 68

Table 10. System board connector and cable guide (continued)
No.
Connector/feature
8
Thunderbolt 3 connector (USB-C)
(external)
9
Ethernet extension connector Gen
2 (external)
10
USB 3.1 connector Gen 1 (external)
11
HDMI connector (external)
12
Audio connector (external)
13
Coin-cell battery connector
(internal)
14
Speaker connector (internal)
15
Keyboard connectors for ThinkPad
16
T490s (internal)
17
Battery connector (internal)
18
Trackpad and NFC connector
(internal)
62
T490s and X390 Hardware Maintenance Manual
Internal cable required
No
No
No
No
No
Coin-cell battery cable
Speaker cable
Keyboard assembly cables
No
Trackpad cable (for non-NFC
models) or trackpad cable (for NFC
models)
Cable connection
Connect a USB-C compatible or
Thunderbolt 3 compatible device
to this connector.
This connector does not work
individually. The connectors
8
and work together as the
docking-station connector.
Connect a USB-C compatible
device to this connector.
Connect a compatible digital audio
device or video monitor to this
connector.
Connect headphones or a headset
with a 3.5-mm (0.14-inch) and 4-
pole plug to this connector.
The coin-cell battery comes with
cable. Connect the cable to this
connector.
The speaker comes with the cable.
Connect the cable to this
connector.
The keyboard assembly comes
with the cables. Connect the
cables to these connectors.
The battery comes with the cable.
Connect the cable to this
connector.
For Trackpad cable (for non-NFC
models), connect one end to the
trackpad and the other end to this
connector.
For Trackpad cable (for NFC
models), connect one end to the
trackpad, one end to the NFC card,
and the other end to this
connector.
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