HP ENVY Ultrabook 4-1043cl HP Envy 4 - Maintenance and Service Guide - Page 56

Remove the USB/Audio and cable see USB/Audio., Remove the power connector and cable see

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Description For use only with computer models equipped with an Intel 1.4GHz processor, but not WWAN capability (includes replacement thermal material) For use only with computer models equipped with an Intel 1.5Hz processor, but not WWAN capability (includes replacement thermal material) Spare part number 686088-001 686088-501 686088-601 686090-001 686090-501 686090-601 693655-001 693655-501 693655-601 693656-001 693656-501 693656-601 Before removing the system board, 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 display panel (see Display panel on page 31). 5. Remove the base enclosure (see Base enclosure on page 33). 6. Remove the battery (see Battery on page 35). 7. Remove the WLAN module (see WLAN module on page 43). 8. Remove the hard drive (see Hard drive on page 37). 9. Disconnect the display panel cable from the system board (see Display panel on page 31). 10. Remove the speaker (see Speakers on page 58). 11. Remove the power connector and cable (see Power connector cable on page 57). 12. Remove the USB/Audio and cable (see USB/Audio). When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● RTC battery (see RTC battery on page 40) ● Memory module (see Memory module on page 41) ● Power connector cable (see Power connector cable on page 57) ● Fan (see Heat sink on page 51) ● Heat sink (see Heat sink on page 51) 48 Chapter 4 Removal and replacement procedures

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Description
Spare part number
For use only with computer models equipped with an Intel 1.4GHz processor, but not WWAN
capability (includes replacement thermal material)
686088–001
686088–501
686088–601
686090–001
686090–501
686090–601
For use only with computer models equipped with an Intel 1.5Hz processor, but not WWAN
capability (includes replacement thermal material)
693655–001
693655–501
693655–601
693656–001
693656–501
693656–601
Before removing the system board, 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 display panel (see
Display panel
on page
31
).
5.
Remove the base enclosure (see
Base enclosure
on page
33
).
6.
Remove the battery (see
Battery
on page
35
).
7.
Remove the WLAN module (see
WLAN module
on page
43
).
8.
Remove the hard drive (see
Hard drive
on page
37
).
9.
Disconnect the display panel cable from the system board (see
Display panel
on page
31
).
10.
Remove the speaker (see
Speakers
on page
58
).
11.
Remove the power connector and cable (see
Power connector cable
on page
57
).
12.
Remove the USB/Audio and cable (see USB/Audio).
When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
RTC battery (see
RTC battery
on page
40
)
●
Memory module (see
Memory module
on page
41
)
●
Power connector cable (see
Power connector cable
on page
57
)
●
Fan (see
Heat sink
on page
51
)
●
Heat sink (see
Heat sink
on page
51
)
48
Chapter 4
Removal and replacement procedures