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24 R
EMOVAL
& R
EPLACEMENT
P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1800 S
ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Modem
To remove the modem, complete the following steps:
1. Prepare the Notebook for disassembly (pg 10
).
2. Remove the Palmrest cover with TouchPad (pg 13
).
3. Remove the keyboard (pg 16
).
4. Remove the button board cover (pg 17
).
5. Remove the heat sink (pg 23
).
6. Disconnect the modem cable from the connector on the modem board
1
.
7. Remove the three screws from the modem board and remove the modem by lifting
the front edge, sliding it towards you, and then lifting the modem off the system
board
2
.
Note: The CPU cover prevents lifting the modem straight up from the system board.
To replace the modem board, reverse these procedures.