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Фрагмент инструкции
2. Disconnect the Bluetooth cable 2from the system board. 3. Disconnect the modem module cable 3from the system board. 4. Disconnect the audio cable 4from the system board. A A CAUTION: Do not attempt to disconnect the optical drive connector before removing the system board. Otherwise, you will damage the locator pin on the optical drive connector. 5. Remove the three Phillips PM2.5x9.0 screws 1that secure the system board. 6. Remove the two Phillips PM2.0x5.0 screws 2 that secure the optical drive connector. 4–36 Maintenance and Service Guide Removal and replacement procedures 7. Release the power cable from the base enclosure 1. 8. Use the optical drive connector 2 to lift the right edge of the system board 3 until it rests at an angle. 9. Remove the system board 4 from the base enclosure by sliding it up and to the right at an angle. 10. Remove the optical drive connector from the system board. Reverse this procedure to install the system board. Maintenance and Service Guide 4–37 Removal and replacement procedures Modem module cable Description Spare part number Modem module cable 489125-001 Before removing the modem module cable, 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 4-6). 5. Remove the following components: a. Optical drive (see “Optical drive” on page 4-7) b. Hard drive (see “Hard drive” on page 4-9) c. Keyboard (see “Keyboard” on page 4-15) d. Keyboard cover (see “Keyboard cover” on page 4-17) e. Power button board (see “Power button board” on page 4-19) f. Display assembly (see “Display assembly” on page 4-20) g. Top cover (see “Top cover” on page 4-26) h. Speakers (see “Speakers” on page 4-33) i. System board (see “System board” on page 4-35) Remove the modem module cable: 1. Remove the modem module cable from the clip 1 built into the base enclosure. 2. Remove the modem module cable 2 from the clips and routing channels built into the base enclosure 3. Reverse this procedure to install the modem module cable. 4–38 Maintenance and Service Guide Removal and replacement procedures Fan/heatsink assembly Description Spare part number Fan/heatsink assembly (includes replacement thermal material) 489126-001 Before removing the fan, 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 4-6). 5. Remove the following components: a. Optical drive (see “Optical drive” on page 4-7) b. Hard drive (see “Hard drive” on page 4-9) c. Keyboard (see “Keyboard” on page 4-15) d. Keyboard cover (see “Keyboard cover” on page 4-17) e. Power button board (see “Power button board” on page 4-19) f. Display assembly (see “Display assembly” on page 4-20) g. Top cover (see “Top cover” on page 4-26) h. Bluetooth module (see “Bluetooth module” on page 4-32) i. System board (see “System board” on page 4-35) Remove the fan/heatsink assembly: 1. Turn the system board right-side up, with the front toward you. 2. Disconnect the fan cable from the system board. . . To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the left side of the computer. Maintenance and Service Guide 4–39 Removal and replacement procedures . . Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and system board components, you may need to move the fan/heat sink assembly from side to side to detach the assembly. 3. Turn the system board upside down with the fan assembly toward you. 4. Loosen the four Phillips PM2.0x10.0 spring-loaded captive screws 1 that secure the fan/heatsink assembly. Remove the fan/heat sink assembly 2 by lifting it straight up. A A WARNING: To avoid damage to the processor, loosen the fan/heatsink screws in the 1-2-3-4 sequence indicated. Likewise, tighten the screws in the same sequence when installing the fan/heatsink assembly. . . The thermal material must be thoroughly cleaned from the surfaces of the fan/heat sink and the system board components each time the fan/heat sink is removed. Thermal grease is located on the section of the fan/heat sink 1that services the processor 2. Thermal pads are located on the section of the fan/heat sink 3that services the Northbridge chip 4. Replacement thermal grease and pads are included with all system board, fan/heat sink assembly, and processor...
Эта инструкция также подходит к моделям:Компьютеры - CQ70 (2.53 mb)
Компьютеры - CQ70 (2.53 mb)