Tecra 750 Series Disassembly Overview, (cont.)
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To install a modem board, follow the steps below.
1.Place the modem pack and secure the connector on the modem board to PJ660 on the system board.
NOTE: Be sure a plastic insulator tab lies on top of the green backup battery, when you seat the modem board.
2.Make sure holes in the modem casing are aligned with screw holes in the computer and secure the modem board with four M2.5x6 screws.
3.Lay the palmrest in place and press down to seat it firmly.
4.Close the PC card slot cover and the display panel.
5.Turn the computer upside down.
6.Secure two M2x22 silver screws and three M2x8 silver screws to the bottom of the computer.
7.Install the battery pack, HDD pack, and optional memory module.
To remove the keyboard, follow the steps below.
1.Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.
2.Remove the battery pack, HDD pack, optional memory module, modem board, and backup and RTC batteries.
3.Remove the tape and disconnect the flexible cable from PJ580 on the system board.
4.Lift up the front edge of the keyboard and lift it out..
To remove the membrane switch, follow the steps below.
1.Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.
2.Remove the battery pack, HDD pack, optional memory module, modem board, backup and RTC batteries, and keyboard.
3.Disconnect the membrane switch cable from PJ570.
4.Remove two M2.5x4 screws securing the membrane switch unit and lift off the unit.
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