GE B30 Technical Reference Manual page 221

N-FCREC Module disassembly and reassembly
11. Remove the CO2 unit module bus flex cable from
the REC board.
12. Lift the CO2 unit up carefully, disconnect the
module bus flex cable and remove the unit from
the module cover.
13. Remove the screw (T8) holding the module bus flex
cable to recorder unit metal plate and module
cover.
14. Disconnect the module bus flex cable from the REC
board and remove the REC board with the recorder
unit metal plate from the module cover.
15. Remove the four pozidrive screws holding the REC
board to the recorder unit metal plate.
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Document no. 2044677-001