Toshiba RAV-SM802UT-E User Manual

– 146 –

Inverter 

control 

P.C. board 

assembly

Inverter 
control 
P.C. board 
assembly

Groove for 
P.C. boaed

Heat sink

Inverter box 

(Metal sheet)

†

IPDU P.C.
board

1) Perform the works in 

„

 and 

…

.

2) 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)

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.

3) Remove the control P.C. board assembly from

P.C. board base. (Remove the heat sink and the
inverter control P.C. board assembly as they are
screwed.)

*(Note 2)
Remove the heat sink upward by taking off two
claws of P.C. base and holding the heat sink.

4) 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.

5) Mount a new IPDU P.C. board.

*(Note 3)
The rectifier diode has polarity, so be careful to 

+

and 

–

 . If 

+

 and 

–

 are mistaken, a trouble is

caused.

*(Note 4)
When mounting a new board, check that it is
correctly set in the groove of the base holder of P.C.
board base.