420 Series
1-19
1.10.4
RTC Battery
The RTC battery provides power to keep the current date, time, and other setup information
in memory while the computer is turned off. Table 1-12 shows the charging time and data
preservation period of the RTC battery.
Table 1-12 RTC battery charging/data preservation time
Time
Charging Time
With AC power
48 H
or main battery
Data preservation period (full charge)
1 month
Содержание 420CD
Страница 22: ...420 Series 2 3 Figure 2 1 Troubleshooting flowchart ...
Страница 172: ...420 Series B 1 Appendix B Board Layout B 1 System Board Front View Figure B 1 Board layout front ...
Страница 173: ...B 2 420 Series B 2 System Board Back View Figure B 2 Board layout back ...
Страница 197: ...E 2 420 Series E 3 German GR Keyboard Figure E 3 GR keyboard E 4 French FR Keyboard Figure E 4 FR keyboard ...
Страница 198: ...420 Series E 3 E 5 Spanish SP Keyboard Figure E 5 SP keyboard E 6 Italian IT Keyboard Figure E 6 IT keyboard ...
Страница 199: ...E 4 420 Series E 7 Scandinavian SC Keyboard Figure E 7 SC keyboard E 8 Swiss German SL Keyboard Figure E 8 SL keyboard ...