Toshiba RAV-SM802UT-E User Manual

– 155 –

Screw

Screw

Screw

Screw

Heat sink

P.C. board fixing hooks (5 positions)

IPDU P.C. board

Screw

Screw

IPDU P.C. board

Heat sink cover

†

IPDU P.C. board

1) Perform the works in 

„

 and 

…

.

2) Take off screws of the inverter assembly

to separate the inverter assembly.
(M4 × 8, 4 pcs)

3) Remove the connectors and the lead

wires which are connected from IPDU
P.C. board to the other parts.
1. Connector

CN04: Connection with cycle P.C.

board (3P: White) *(Note 1)

CN05: Connection with cycle P.C.

board (2P: White) *(Note 1)

CN06: Connection with cycle P.C.

board (5P: Red) *(Note 1)

CN13: Connection with cycle P.C.

board (5P: Red) *(Note 1)

CN600: Heat sink sensor (2P: Black)

2. Lead wire

CN01: Connection with power

terminal block (Red)

CN02: Connection with power

terminal block (White)

CN03: Connection with inverter box

(Black)

CN09: Connection with compressor

(Red)

CN10: Connection with compressor

(White)

CN11: Connection with compressor

(Black)

Rectifier diode

+

: Orange lead wire *Note 2

–

: Gray lead wire *Note 2

~

: Red lead wire

(Top)

~

: Brown lead wire

(Bottom)

*(Note 1)
Remove the connectors by releasing lock of
the housing.

4) Remove the heat sink cover.

(M4 × 8, 2pcs)

5) Take off two screws which fix the heat

sink and IGBT and also take off support
hooks of the P.C. board (5 positions) to
remove IPDU P.C. board.

6) Mount a new IPDU P.C. board.

*(Note 2)
The rectifier diode has polarity, so be
careful to 

+

 and 

–

 . If 

+

 and 

–

 are

mistaken, a trouble is caused.