Toshiba portege 610ct 620ct Instruction De Maintenance

4-22

To remove the 610CT RTC and backup batteries, follow the steps below and refer to figure
4-18.

1.

Turn off the power to the 610CT.  Disconnect the AC adapter, power cord and all
external cables connected to the computer.

2.

Remove the battery pack, optional memory card, optional PCMCIA card, key-
board, and top cover as described in sections 4.2 through 4.7.

3.

Peel off the tape securing the backup battery cable.

4.

Disconnect the RTC battery cable from PJ15 on the system board.

5.

Slide the RTC battery free of the brackets holding it in place to remove the
battery.

6.

Disconnect the backup battery cable from PJ21 on the power supply board and
lift out the battery. Note that the cable is under the edge of the clear plastic protec-
tor.