Mitsubishi Electric MA-E100R-E Service Manual page 34

(6) Removing the Front Case
1 Remove the case R, case L, and rear case.
→ (See "(3) Removing the Case R, Case L, and
Rear Case".)
2 Remove the dust sensor circuit board.
→ (See "(4) Removing and Replacing the Dust
Sensor Circuit Board".)
3 Remove the power supply control circuit board.
→ (See "(5) Removing and Replacing the
Power Supply Control Circuit Board".)
4 Remove the display operation panel from the
two tabs mounting it.
* The display part (see *1 in the figure below)
may come off with the panel at this time.
5 Remove the seven front case mounting screws,
and then remove the front case.
(7) Removing and Replacing the Display Operation Circuit Board
1 Remove the front case.
→ (See "(6) Removing the Front Case".)
2 Remove the display operation circuit board holder
from the four tabs mounting it.
3 Remove all connectors from the display operation
circuit board.
→ (Removing and Replacing the Display
Operation Circuit Board)
<When installing the display operation circuit board holder>
• If the display part has come off from the display
operation circuit board holder, hook the tab (left)
of the display part on the rib (left) of the display
operation circuit board holder, and then hook the
tab (right) of the display part on the rib (right) of the
display operation circuit board holder.
Display part*
Tab
(left)
Rib
(left)
Display operation circuit board holder
• Install the display part on the display operation circuit
board holder, and then install the display operation circuit
board holder on the display operation circuit board.
• Pass the lead wire for the human sensing unit motor
above the display operation circuit board before
installing the display operation circuit board holder.
1
34
Tab
4
Display operation panel
5
Front case
mounting screw
2
Display part* 1
3
Tab
(right) Display operation circuit board
(Remove all connectors.)
Rib
(right)
Display
operation
circuit board
holder
Human sensing
unit motor
Front case
mounting screw
Front case
Tab (4 places)
Display operation circuit board holder
Display
operation
circuit
board
Lead wire