Sony PMW-10MD Operating Instructions Manual page 71

Exchanging backup batteries
Note
Also turn the MAIN POWER switch off before
exchanging backup batteries.
1
Remove the cover of the backup battery
compartment (CCU side panel) by
pressing the protrusion on the cover
down and pulling forward.
2
Press the battery down, hold it so that it
does not pop out, and pull forward.
3
Insert a new backup battery (CR2032)
with the + symbol on the battery facing
outside.
4
Attach the cover in the original position.
71
Backup Battery