4 Replacement Procedures  4.25 RTC battery 
4.25 RTC battery 
CAUTION:  Risk of explosion if battery is replaced by an incorrect type.  
  Dispose of used batteries according to the laws and ordinances of your local 
authority. 
Removing the RTC battery 
To remove the RTC battery, follow the steps below and refer to Figure 4-50. 
1.  Peel off the glass tape and disconnect the RTC battery harness from the connector 
CN9300 on the sound board.  
2.  Remove the insulator (RTC BATT INSULATOR) from the slot. 
3.  Open the insulator (RTC BATT INSULATOR) and take out the RTC battery. 
 
Insulator  
(RTC BATT INSULATOR) 
RTC battery 
CN9300
RTC battery harness 
Glass tape
Figure 4-47   Removing the RTC battery 
4-74 [CONFIDENTIAL]  TECRA A10/S10/P10/SatellitePro S300 Maintenance Manual (960-684)