HP ProBook 6540b HP ProBook 6545b, 6540b, 6445b and 6440b Notebook PC - Mainte - Page 132

Removal and replacement procedures Modem module ✎ The modem module spare part kit does not include a modem module cable. The modem module cable is included in the Cable Kit, spare part numbers 583282-001 (for use only with HP Compaq 6545b and 6540b computer models) and 583957-001 (for use only with HP Compaq 6445b and 6440b computer models). Description For use in all countries and regions except Australia and New Zealand For use only in Australia and New Zealand Spare part number 510100-001 510100-011 Before removing the modem module, follow these steps: 1. Shut down the computer. 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. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Bluetooth module (see "Bluetooth module" on page 4-9) b. Mass storage device (see "Mass storage device" on page 4-11) c. Optical drive (see "Optical drive" on page 4-21) d. Keyboard (see "Keyboard" on page 4-23) e. Switch cover (see "Switch cover" on page 4-30) f. Palm rest (see "Palm rest" on page 4-33) g. TouchPad (see "TouchPad" on page 4-35) h. Display assembly (see "Display assembly" on page 4-42) i. Top cover (see "Top cover" on page 4-56) Maintenance and Service Guide 4-63