(English) User Guide
Page 22
Left-side view Figure 3. ThinkPad T420s/T420si left-side view 1 Fan louvers (left) 3 Combo audio jack 5 Smart card slot 2 USB connector (left) 4 Media card reader slot or ExpressCard slot 1 Fan louvers (left ) ... obstacle in the computer and cool the central processor. Note: If you press it, the headset microphone will be disabled, and the internal microphone will be enabled instead. Note: The combo audio jack does not support a conventional microphone. See "Using audio features" on page 59. 6 User Guide For more information about the audio devices...
Left-side view Figure 3. ThinkPad T420s/T420si left-side view 1 Fan louvers (left) 3 Combo audio jack 5 Smart card slot 2 USB connector (left) 4 Media card reader slot or ExpressCard slot 1 Fan louvers (left ) ... obstacle in the computer and cool the central processor. Note: If you press it, the headset microphone will be disabled, and the internal microphone will be enabled instead. Note: The combo audio jack does not support a conventional microphone. See "Using audio features" on page 59. 6 User Guide For more information about the audio devices...