Compaq 1600XL - Manual (Page 112)

26 R EMOVAL S EQUENCE P RESARIO N OTEBOOK M AINTENANCE AND S ERVICE G UIDE 1600XL S ERIES
Presario 1600XL Series
Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
4. Gently pull the two modem latches on each side of the modem.
5. Disconnect the modem from the system board.
To replace the modem board, reverse these procedures.