Mitsubishi Electric LGH-F300RVX2-E Handbook page 48

When removing the power circuit boards or reactors
[1] Remove the screws (eight PT screws 4×8,
indicated by ) to remove the control box
cover.
[2] Remove the circuit boards and reactors.
[Upper unit]
a. Disconnect the connectors (indicated by
Precaution
When disconnecting the motor connec-
tors, make sure that the power supply
is turned off and all LEDs are unlit.
Even when the fan motor is stopped,
disconnecting the live-line connec-
tors will cause a motor malfunction.
Assembly precaution
After connecting the motor connec-
tors (CN9, CN10), check the wiring
inside the main unit.
Push in the motor leads until their
cord bands touch the cord bush.
Push in the
leads.
Cord bush
b. Remove the screws (two PT screws 4×8, indicated by ), and remove the power circuit board (upper).
c. Remove the screws (two PT screws 4×8, indicated by
[Lower unit]
a. Remove the control circuit board. → See (5) [2] and [3] (on page 47).
b. Remove the power circuit board. → See (4) [4] and [5] (on pages 45 and 46).
c. Remove the reactor. → See (4) [6] to [8] (on page 46).
When reassembling
Reassemble the unit in the reverse order of disassembly.
After reassembly, always make a test run to be sure that the unit operates properly.
Cord band
Control box cover
Power circuit board (upper)
).
Power circuit board
), and remove the reactor.
─ 48 ─
CN10
LED6
CN9
CN121
CN113
CN12
TAB1
TAB2
Control circuit board
Reactor