HP Pavilion m4 HP Pavilion m4 Notebook PC Maintenance and Service Guide - Page 53
Top cover, from the defective top cover and installed on the replacement top cover.
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Top cover Description Top cover (includes TouchPad) Spare part number 718446-001 Before removing the top cover, follow these steps: 1. Turn off 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 the power from the computer by unplugging the power cord from the computer. 3. Disconnect all external devices from the computer. 4. Remove the battery (see Battery on page 30) and then remove the following components: a. Hard drive (see Hard drive on page 31) b. Memory module service cover (see Memory module on page 36) c. Optical drive (see Optical drive on page 38) d. Keyboard (see Keyboard on page 42) When replacing the top cover, be sure that the power button board (see Power button board on page 48) and TouchPad button board (see TouchPad button board on page 50) are removed from the defective top cover and installed on the replacement top cover. Remove the top cover: 1. Remove the rear corner covers (1). The rear corner covers are included in the Plastics Kit, spare part number 718438-001. 2. Remove the ten Phillips PM2.5×6.5 screws (2) that secure the top cover to the computer. Component replacement procedures 45