HP Envy 14-1050 Maintenance And Service Manual page 77

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