HP ProBook 4540s Maintenance And Service Manual page 125

15. If it is necessary to replace the webcam module (shown in the following image) or microphone
module from the display enclosure, disconnect the cable from the module (1), and then gently
pull the module away from the double-sided tape on the display enclosure (2).
The webcam module is available using spare part number 683508-001.
The removal procedure for the microphone module is the same as for the webcam module. The
microphone module is available using spare part number 647675-001.
16. If it is necessary to replace the display hinges, remove the six Phillips PM2.5×3.0 screws that
secure the display hinges and panel to the display enclosure.
Component replacement procedures 117