Toshiba PORTEGE M780 Maintenance Manual page 358

4.17 RTC battery
Installing the RTC battery
The following describes the procedure for installing the RTC battery. (See Figure 4-28.)
1. Connect the RTC battery cable to the connector CN9300 on the system board.
2. Set the RTC battery to the slot and stick the insulator in place.
PORTÉGÉ M780 Maintenance Manual (960-809)
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4 Replacement Procedures
[CONFIDENTIAL] 4-49