HP ProBook 6450b

j.
Top cover (see
Top cover on page 128)
k. ExpressCard assembly (see
ExpressCard assembly on page 133)
l.
Speaker assembly (see
Speaker assembly on page 137)
m. Card reader/USB board (see
Flash media/1394 board on page 141)
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 80)
●
Expansion and primary memory modules (see
Primary memory module on page 100 and
Expansion memory module on page 86)
●
WLAN module (see
WLAN module on page 88)
●
WWAN module (see
WWAN module on page 92)
●
RTC battery (see
RTC battery on page 102)
●
Processor (see
Processor on page 113)
●
Modem module (see
Modem module on page 135)
●
Bluetooth module cable (see
Bluetooth module cable on page 139)
Remove the system board:
1. Disconnect the following cables:
●
Bluetooth module cable (1) from the system board
●
Modem module cable (2) from the modem module
●
External monitor cable (3) from the system board
Component replacement procedures
145