Toshiba MMY-MUP0721FT6P-UL Service Manual page 313

No. Part
4 WARNING
Inverter
assembly
Wear a pair of gloves.
Otherwise, you will risk an injury involving a replacement
part or some other object.
1. Detachment
1) Stop the air conditioner operation, and turn off the
circuit breaker.
2) Remove the inverter cover.
(M4 × 0.4'' (10mm), 2 pcs.)
3) Remove the connectors and clamp, and remove each
wire.
4) Remove the fixing screws for the heat sink.
(INV-BOX square type : M4 × 0.6'' (16mm), 5 pcs
rectangle type : M4 × 0.6'' (16mm), 6 pcs)
Tighten the screws removed to the hole next to upper
and lower slotted hole to remove the heat sink
5) Remove the fixing screws for the box.
(M5 × 0.4'' (10mm), 4 pcs for right and left, 2 pcs for
top)
6) Lift up the box lightly to disengage the fixing hook at
the right-lower part.
(The lower part of the box comes out toward you.)
7) Hold the top board with both hands to disengage the
top hook.
[INV-BOX square type]
4) Fixing screws for
Work procedure
the heat sink (5 pcs
[INV-BOX rectangle type]
4) Fixing screws for
3) Comp., FM, OR
3) Trans lead
3) Trans lead
the heat sink (6 pcs
- 313 -
Remarks
5) Screw
5) Screw
Fixing part Screw slot hole
(Tentative structure)
* Loosen the screw without
removing it.
2) Screw for inverter cover
3) Coil, sensor, heater,
Reactor lead or NFC lead
3) Power supply
Signal lead
[INV-BOX square type]
Wiring position
3) Coil, sensor, heater,
3) Comp., FM, OR
or NFC lead
Reactor lead
3) Power supply
Signal lead
[INV-BOX rectangle type] Wiring position