HP ProBook 4230s Maintenance And Service Manual page 72

4. Remove the battery (see
5. Remove the following components:
a. Access door (see
b. Hard drive (see
c. Keyboard (see
d. Top cover (see
e. Speaker assembly (see
When replacing the system board, be sure to remove the following components from the defective
system board and install on the replacement system board:
●
SIM (see
●
Memory module (see
●
WLAN module (see
●
WWAN module (see
●
Modem module (see
●
Processor (see
Remove the system board:
1. Position the computer upright and open it.
2. Disconnect the display cable from the system board (1) and lift it aside.
3. Remove the Phillips PM2.5×5.0 screw (2) that secures the system board to the base enclosure.
4. Remove the Phillips PM2.5×7.0 screw (3) that secures the system board to the base enclosure.
5. Lift to remove the power connector bracket on the right side of the system board (4).
The power connector bracket is available in the Bracket Kit, spare part number 646045-001.
64 Chapter 4 Removal and replacement procedures
Battery on page
Access door on page
Hard drive on page
Keyboard on page
Top cover on page
Speaker assembly on page
SIM on page 42)
Memory modules on page
WLAN/Bluetooth combo card on page
WWAN module on page
Modem module on page
Processor on page
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