HP ENVY 14t-1200 HP ENVY 14 Notebook PC - Maintenance and Service Guide - Page 77

RTC battery see, Memory module see

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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 battery cover and battery (see Battery on page 39). 5. Remove the hard drive (see Mass storage device on page 41). 6. Remove the memory module/wireless module compartment cover (see WLAN module on page 47). 7. Disconnect the battery charger board ribbon cable from the system board (see Battery connector board on page 54). 8. Remove the top cover (see Top cover on page 56). 9. Disconnect the optical drive cable from the system board (see Optical drive on page 65). 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: ● SIM (see SIM on page 41) ● WLAN module (see WLAN module on page 47) ● RTC battery (see RTC battery on page 51) ● Memory module (see Memory module on page 52) ● Fan/heat sink assembly (see Fan/heat sink assembly on page 72) ● Processor (see Processor on page 74) Remove the system board: 1. Release the ZIF connector to which the audio/USB board cable is attached, and then disconnect the cable (1) from the system board. Component replacement procedures 69

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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 battery cover and battery (see
Battery
on page
39
).
5.
Remove the hard drive (see
Mass storage device
on page
41
).
6.
Remove the memory module/wireless module compartment cover (see
WLAN module
on page
47
).
7.
Disconnect the battery charger board ribbon cable from the system board (see
Battery connector
board
on page
54
).
8.
Remove the top cover (see
Top cover
on page
56
).
9.
Disconnect the optical drive cable from the system board (see
Optical drive
on page
65
).
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:
●
SIM (see
SIM
on page
41
)
●
WLAN module (see
WLAN module
on page
47
)
●
RTC battery (see
RTC battery
on page
51
)
●
Memory module (see
Memory module
on page
52
)
●
Fan/heat sink assembly (see
Fan/heat sink assembly
on page
72
)
●
Processor (see
Processor
on page
74
)
Remove the system board:
1.
Release the ZIF connector to which the audio/USB board cable is attached, and then disconnect
the cable
(1)
from the system board.
Component replacement procedures
69