HP Chromebook x360 Maintenance and Service Guide - Page 48

System board, Disconnect the power cable

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System board NOTE: The system board spare part kit includes the processor, heat sink, and replacement thermal material. Table 5-8 System board spare part information Description Spare part number Equipped with an Intel Celeron N4120 processor, 8 GB of system memory, 64 GB of eMMC system storage, and the Google Chrome® OS Equipped with an Intel Celeron N4120 processor, 4 GB of system memory, 32 GB of eMMC system storage, and the Google Chrome® OS Equipped with an Intel Celeron N4020 processor, 8 GB of system memory, 64 GB of eMMC system storage, and the Google Chrome® OS Equipped with an Intel Celeron N4020 processor, 8 GB of system memory, 32 GB of eMMC system storage, and the Google Chrome® OS Equipped with an Intel Celeron N4020 processor, 4 GB of system memory, 32 GB of eMMC system storage, and the Google Chrome® OS L92190-001 L92189-001 L92188-001 L92187-001 L92186-001 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 keyboard/top cover (see Keyboard/top cover on page 24). 5. Disconnect the battery cable from the system board (see Battery on page 35). 6. Remove the WLAN module (see WLAN module on page 37). Remove the system board: 1. Release the shielding (1) that covers the connector board cable ZIF connectors on the system board. 2. Release the ZIF connectors (2) to which the connector board cables are connected, and then disconnect the connector board cables from the system board. 3. Release the shielding (3) that covers the power cable connector. 4. Disconnect the power cable (4) from the connector board. 5. Release the shielding (5) that covers the webcam module cable connector. 6. Disconnect the webcam module cable (6) from the system board. 7. Release the shielding (7) that covers the display panel cable connector. 8. Disconnect the display panel cable (8) from the system board. 9. Disconnect the speaker cable (9) from the system board. 42 Chapter 5 Removal and replacement procedures

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System board
NOTE:
The system board spare part kit includes the processor, heat sink, and replacement thermal material.
Table 5-8
System board spare part information
Description
Spare part number
Equipped with an Intel Celeron N4120 processor, 8 GB of system memory, 64 GB of eMMC system storage, and
the Google Chrome® OS
L92190-001
Equipped with an Intel Celeron N4120 processor, 4 GB of system memory, 32 GB of eMMC system storage, and
the Google Chrome® OS
L92189-001
Equipped with an Intel Celeron N4020 processor, 8 GB of system memory, 64 GB of eMMC system storage, and
the Google Chrome® OS
L92188-001
Equipped with an Intel Celeron N4020 processor, 8 GB of system memory, 32 GB of eMMC system storage, and
the Google Chrome® OS
L92187-001
Equipped with an Intel Celeron N4020 processor, 4 GB of system memory, 32 GB of eMMC system storage, and
the Google Chrome® OS
L92186-001
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 keyboard/top cover (see
Keyboard/top cover
on page
24
).
5.
Disconnect the battery cable from the system board (see
Battery
on page
35
).
6.
Remove the WLAN module (see
WLAN module
on page
37
).
Remove the system board:
1.
Release the shielding
(1)
that covers the connector board cable ZIF connectors on the system board.
2.
Release the ZIF connectors
(2)
to which the connector board cables are connected, and then disconnect
the connector board cables from the system board.
3.
Release the shielding
(3)
that covers the power cable connector.
4.
Disconnect the power cable
(4)
from the connector board.
5.
Release the shielding
(5)
that covers the webcam module cable connector.
6.
Disconnect the webcam module cable
(6)
from the system board.
7.
Release the shielding
(7)
that covers the display panel cable connector.
8.
Disconnect the display panel cable
(8)
from the system board.
9.
Disconnect the speaker cable
(9)
from the system board.
42
Chapter 5
Removal and replacement procedures