Mitsubishi Electric Mr Slim PUHZ-RP50VHA4 Service Manual page 147

OPERATING PROCEDURE
From the previous page.
(8) Remove the terminal cover and disconnect the compressor
lead wire.
(9) Remove the electrical parts box fixing screws (2 for front,
4 × 10) and detach the electrical parts box by pulling it
upward. The electrical parts box is fixed with 2 hooks on
the left and 1 hook on the right.
4. Disassembling the electrical parts box
(1) Disconnect all the connectors on the controller circuit board.
(2) Remove the 3 screws, screw 1, 2 and 3, that fix the
plate equipped with the outdoor controller circuit board,
and the electrical parts box, screw 1 from the front and
the screw 2 and 3 from the bottom of the electrical parts
box. (See Photo 6 and 7)
(3) Slide the plate in the direction of the arrow A and remove it.
(See Photo 6.)
(4) Remove the lead wires from the clamp on the bottom of the
electrical parts box. (See Photo 6)
(5) Remove the 3 screws, screw 4 and 5, that fix the bottom
side of the electrical parts box and remove the bottom side
plate by sliding in the direction of the arrow B. (See Photo
8 and 9)
(6) Remove the 2 screws, screw 6 and 7, that fix the plate
equipped with the noise filter circuit board and converter
circuit board. (See Photo 10)
Note: When reassembling the electrical parts box, make
sure the wirings are correct.
Photo 7
Screw2
Heatsink
Photo 9
Noise filter
circuit board
(N.F.)
OCH451D
Bottom plate of
electrical parts
box
Screw3
Electrical parts
box
B
Converter
circuit board
(CONV.B.)
Power circuit
board (P.B.)
PHOTOS & ILLUSTRATION
Photo 5
Photo 6
Photo 8
Screw4
Bottom plate of electrical parts box
Photo 10
Screw6
Noise filter circuit board (N.F.)
147
Electrical parts box
Electrical parts
box fixing screw
Electrical
parts box
Controller
circuit board
(C.B.)
A
Clamp
Electrical parts box
Screw1
Screw5
Screw7