HP LTE Notebook PC 5100 LTE 5000 Family of Personal Computers Maintenance and - Page 20

The system unit contains the following field replaceable units: o CPU cover o Internal microphone o Status panel o Processor board o Power board o Cooling fan o System board o Memory expansion board (optional) o Keyboard assembly o Auxiliary battery o Miscellaneous plastic parts CPU Cover The CPU cover is located above the keyboard and is secured in place with three screws on the rear panel of the system unit. Tabs on the front edge of the CPU cover engage slots across the top edge of the keyboard panel. The CPU cover contains the actuators for the following: o Power switch o Standby (Suspend) button o Display switch The CPU cover with all switch actuators installed is available as a field replaceable unit. The switch actuators are also available as field replaceable units. The power switch actuator and spring and the standby (suspend) button actuator and spring are removed by squeezing the actuator tabs on the underside of the CPU cover and pushing the buttons out of their mounting hole. The display switch actuator simply snaps out of its mounting hole from the underside of the CPU cover. The CPU cover must be removed to service any of the above described switch actuators. The cover also must be removed to disconnect any of the display unit cables from the system unit, to remove the display unit, to service the status panel, and to remove the keyboard assembly. Internal Microphone The internal microphone is supported by the audio subsystem and connects