User manual HP C9731A QUICK GUIDE

[. . . ] The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. [. . . ] Open the computer as far as possible. 38 Chapter 5 Removal and replacement procedures ENWW 5. Lift the rear edge of the switch cover and swing it forward. 6. Remove the switch cover. Reverse this procedure to install the switch cover. ENWW Component replacement procedures 39 Keyboard Description Belgium The Czech Republic Denmark Europe France Germany Greece Hungary Israel Italy Norway Poland 438531-A41 438531-221 438531-081 438531-021 438531-051 438531-041 438531-151 438531-211 438531-BB1 438531-061 438531-091 438531-241 Portugal Russia Saudi Arabia Slovakia Slovenia South Africa Spain Sweden and Finland Turkey The United Kingdom The United States 438531-131 438531-251 438531-171 438531-231 438531-BA1 438531-AR1 438531-061 438531-B71 438531-141 438531-031 438531-001 Before removing the keyboard, follow these steps: 1. If you are unsure whether the computer is off or in hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. Remove the battery (see Battery on page 29). Remove the memory/Mini PCI card module compartment cover (see Memory module on page 32). Remove the switch cover (see Switch cover on page 38). Remove the keyboard: 1. Position the computer with the front toward you. 40 Chapter 5 Removal and replacement procedures ENWW 2. Remove the two Phillips PM2. 0×9. 0 screws that secure the keyboard to the computer. 3. 5. Turn the computer display-side up, with the front toward you. Lift the rear edge of the keyboard and swing it toward you until it rests on the palm rest. ENWW Component replacement procedures 41 6. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached and disconnect the keyboard cable (2) from the system board. 7. Remove the keyboard. Reverse this procedure to install the keyboard. 42 Chapter 5 Removal and replacement procedures ENWW Button board Description Button board Spare part number 441631-001 Before removing the button board, follow these steps: 1. If you are unsure whether the computer is off or in hibernation, turn the computer on, and then shut it down through the operating system. Disconnect all external devices connected to the computer. NOTE The display inverter is available using spare part number 441628-001. 14. If it is necessary to replace the display panel, remove the four Phillips PM2. 5×6. 0 screws (1) that secure the panel to the display enclosure. NOTE The display panel is available using spare part number 440711-001. 16. If it is necessary to replace either of the display hinges, remove the four Phillips PM2. 0×3. 0 screws (1) that secure each hinge to the display panel. ENWW Component replacement procedures 47 17. NOTE The display hinges are available in the Display Hinge Kit, spare part number 440707-001. 18. If it is necessary to replace the wireless antenna transceivers, remove the Phillips PM2. 5×4. 0 screws (1) that secure each transceiver (2) to the display enclosure. NOTE The wireless antenna transceivers are also attached to the display enclosure with a thin layer of adhesive. It may be necessary to use a flat-bladed tool to pry the transceivers away from the display enclosure. Remove the wireless antenna transceivers (2) and cables (3) from the display enclosure. NOTE The wireless antenna cables are attached to the display enclosure by a series of pliable tabs (4) built into the enclosure shielding. NOTE The wireless antenna transceivers and cables are available in the Wireless Antenna Kit, spare part number 441639-001. Reverse this procedure to reassemble and install the display assembly. 48 Chapter 5 Removal and replacement procedures ENWW Base enclosure Description Base enclosure Spare part number 441625-001 Before removing the base enclosure, follow these steps: 1. [. . . ] Careful handling should be exercised when removing these components. When you remove these components, handle them carefully. This HP product contains mercury in the backlight in the display assembly that might require special handling at end-of-life. Disposal of mercury may be regulated because of environmental considerations. [. . . ]