HP ProBook 640 Maintenance and Service Guide - Page 74
Optical drive board
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Optical drive board Description Optical drive board For products with an optical drive For products with an optical drive and a serial port (select products only) Spare part number 840745-001 840746-001 IMPORTANT: Make special note of each screw and screw lock size and location during removal and replacement Before removing the optical drive board, follow these steps: 1. Shut down the computer. 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 following components: a. Service door (see Service door on page 37). b. Remove the battery (see Battery on page 38) c. Hard drive (see Hard drive on page 39). d. Solid-state drive (see Solid-state drive (select products only) on page 41). e. WWAN module (see WWAN module (select products only) on page 42). f. WLAN module (see WLAN module on page 44). g. Optical drive (see Optical drive on page 46). h. Keyboard (see Keyboard on page 48). i. Hinge covers (see Hinge cover on page 55). j. Base enclosure (see Base enclosure on page 57). k. System board (see System board on page 59). l. Fan/heat sink assembly (see Fan and heat sink assembly on page 61). Remove the optical drive board: ▲ Disconnect the optical drive board cable (1), and then remove the optical drive board (2). 64 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts