Lenovo ThinkPad T490s Hardware Maintenance Manual page 109

Camera-and-microphone-module cable types
Depending on the computer model, the camera-and-microphone-module cable might be one of the following
types.
ThinkPad T490s
For models with IR camera, microphone, and system
status indicator
For models with conventional camera, microphone, and
system status indicator
For models with system status indicator only
ThinkPad X390
For models with IR camera, microphone, and system
status indicator
For models with conventional camera, microphone, and
system status indicator
For models with microphone and system status indicator
For models with system status indicator only
.
Chapter 8 Removing or replacing a FRU
103