Mitsubishi Electric LGH-F300RVX2-E Handbook page 47

(5) Control parts (For LGH-F940RVX2-E and LGH-F1200RVX2-E)
Precaution
Before replacing the circuit boards, see (6) Procedures for replacing the circuit boards (page 49).
When removing only the control circuit board
[1] Remove the black screws (three special screws 4×8,
indicated by
) to remove the control cover.
[2] Check that LED4 (red) on the circuit board is OFF, and
then disconnect the connectors (indicated by
the control circuit board.
[3] Remove the screws (two PT screws 4×8, indicated by
), and remove the control circuit board.
) from
CN19
─ 47 ─
Control cover
LED4
CN21
CN14
CN5
CN13
CN7
Control circuit board