HP ENVY 4t-1200 HP ENVY 4 Sleekbook HP ENVY 4 Ultrabook HP ENVY 4 Ultrabook HP - Page 63
Fan, Disconnect the power from the computer by first unplugging the power cord from the AC outlet
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5. Lift up on the rear edge, slide backwards, and then remove the TouchPad button board and cable (4). Fan Reverse this procedure to install the TouchPad button board and cable. Description Fan (with foil) Spare part number 691641-001 Before removing the fan: 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 display panel (see Display panel on page 39). 5. Remove the base enclosure (see Base enclosure on page 42). 6. Remove the battery cable (see Battery on page 43). Component replacement procedures 55