Mitsubishi Electric Lossnay LGH-50RVS-E Handbook page 42

(6) Control parts
Precaution
Before replacing the circuit boards, see (7) Procedures for replacing the circuit boards (page 44).
[1] Remove the control box cover. → See (2) [1].
[2] Check that LED4 on the control circuit board is OFF,
and then disconnect the connectors (indicated by
from the control circuit board.
[3] Remove the screws (two PT screws 4×8, indicated by
), and remove the control circuit board.
[4] Disconnect the connectors (indicated by
power circuit board.
Precaution
When disconnecting the motor connectors, make sure
that the power supply is turned off. Even when the fan
motor is stopped, disconnecting the live-line connec-
tors will cause a motor malfunction.
Assembly precaution
After connecting the motor connectors
(CN9, CN10), tuck the excess leads into
the main unit.
)
) from the
Power circuit board
Push in
the leads.
─ 42 ─
CN7
CN5
CN14
Control circuit board
Control circuit board
TAB2
CN12
CN113
CN10
CN19
TAB1
CN119
CN114
CN9