GE B30 Technical Reference Manual page 177

To remove the DC/DC board
To remove the main power
connector unit
- Disconnect the AC/DC board - DC/DC board cable connector
- Remove the screw (T10) and disconnect the DC/DC board
from the frame by lifting it up carefully.
- Remove the cover first
- Remove the two screws (T10) holding the unit to the frame.
- Disconnect the protective earth connector from the
receptacle.
Frame disassembly
6-17
Document no. 2044677-001