HP ZHAN A 14 Maintenance and Service Guide - Page 48

Keyboard cable ZIF, Camera cable ZIF

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Table 5-10 System board descriptions and part numbers Description System board (includes processor; for use in models with the Windows operating system) AMD Ryzen 7-7840H processor and 32 GB of system memory AMD Ryzen 7-7840H processor and 16 GB of system memory AMD Ryzen 5-7640H processor and 32 GB of system memory AMD Ryzen 5-7640H processor and 16 GB of system memory Spare part number N59281-601 N59280-601 N59279-601 N59278-601 Before removing the system board, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 29). 2. Remove the bottom cover (see Bottom cover on page 29). 3. Remove the battery (see Battery on page 30). 4. Remove the fan (see Fans on page 38). When you replace the system board, be sure to remove the following components (as applicable) from the defective system board and install them on the replacement system board: ● Mylar pieces ● WLAN module (see WLAN module on page 32). ● Solid-state drive (see Solid-state drive on page 35). ● Heat sink (see Heat sink on page 38). NOTE: You do not have to remove the system board to remove the heat sink. You can remove the system board with the heat sink attached. Remove the system board: 1. Disconnect the following cables from the system board: ● Camera cable (ZIF) (1) ● WLAN antennas from the WLAN module (2) ● USB/audio board cable (ZIF) (3) ● Left speaker cable (4) ● Keyboard backlight cable (ZIF) (5) (select products only) ● Keyboard cable (ZIF) (6) ● Display cable (ZIF) (7) ● Touchpad cable (ZIF) (8) ● Right speaker cable (9) 42 Chapter 5 Removal and replacement procedures for authorized service provider parts

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Table 5-10
System board descriptions and part numbers
Description
Spare part number
System board
(includes processor; for use in models with the Windows operating system)
AMD Ryzen 7-7840H processor and 32 GB of system memory
N59281-601
AMD Ryzen 7-7840H processor and 16 GB of system memory
N59280-601
AMD Ryzen 5-7640H processor and 32 GB of system memory
N59279-601
AMD Ryzen 5-7640H processor and 16 GB of system memory
N59278-601
Before removing the system board, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
29
).
2.
Remove the bottom cover (see
Bottom cover
on page
29
).
3.
Remove the battery (see
Battery
on page
30
).
4.
Remove the fan (see
Fans
on page
38
).
When you replace the system board, be sure to remove the following components (as applicable) from
the defective system board and install them on the replacement system board:
●
Mylar pieces
●
WLAN module (see
WLAN module
on page
32
).
●
Solid-state drive (see
Solid-state drive
on page
35
).
●
Heat sink (see
Heat sink
on page
38
).
NOTE:
You do not have to remove the system board to remove the heat sink. You can remove the
system board with the heat sink attached.
Remove the system board:
1.
Disconnect the following cables from the system board:
●
Camera cable (ZIF)
(1)
●
WLAN antennas from the WLAN module
(2)
●
USB/audio board cable (ZIF)
(3)
●
Left speaker cable
(4)
●
Keyboard backlight cable (ZIF)
(5)
(select products only)
●
Keyboard cable (ZIF)
(6)
●
Display cable (ZIF)
(7)
●
Touchpad cable (ZIF)
(8)
●
Right speaker cable
(9)
42
Chapter 5
Removal and replacement procedures for authorized service provider parts