Sony DVS-9000-C - Manual (Page 39)

2-3
DVS-9000/9000SF
2-3. About the Data Backup Capacitor
A large capacitor is installed on the CA-44 board in order
to backup the memory storing the setup and other data in
the DVS-9000 series.
Leave the main power of the DVS-9000 series turned on
for one hour or longer in order to charge the large capaci-
tor. The data can be backed up for about one week when
the capacitor is fully charged under the normal operating
temperature.
2-3. About the Data Backup Capacitor