Cdb P.c. Board; Ipdu P.c. Board - Toshiba RAS-4M27U2AVG-E Service Manual

No. Part name
CDB P.C. 1) Perform works of Detachment 1 of 1 and 4)
5
board
2) Remove the connector and the relay connector
3) Remove the earth wire of CDB P.C. board
4) Remove CDB P.C. board from CDB fixed
5) Mount a new CDB P.C. board.
IPDU
1) Perform works of Detachment 1 of
6
P.C. board
2) Take off screw for CDB fixed board and the
3) Remove CDB P.C. board assembly.
4) Remove the connectors connected to IPDU
5) Remove the relay connector for fan
6) Remove the lead wire connected to IPDU
Procedure
of .
4
CAUTION
Never disassemble the inverter until 5 minutes
after the power supply was turned off because
there is a fear that an electric shock may occur.
that are connected from CDB P.C. board to
IPDU P.C. board, power supply and the inter-
unit wire.
CN802: UART (5P, Blue)
CN804: UART (5P, White)
CN01: Power supply (3P, Red)
Terminal relay connector (6P, White)
∗ Unlock the lock of the housing unit and
then remove the connectors.
(Truss head B tight Ø4 × 6, 1 pc.)
board.
∗ When connecting the connectors on CDB
P.C. board to support CDB fixed board with
hand.
, 4 and 2), 3) of 5 .
2
CAUTION
Never disassemble the inverter until 5 minutes
after the power supply was turned off because
there is a fear that an electric shock may occur.
inverter box. (ST1T Ø4 × 8, 1 pc.)
P.C. board. (4-way valve coil, compressor
case thermo, UART × 2, Inter-unit wire)
motor, reactor, and High pressure switch.
P.C. board.
(Tightening torque: 1.47 ± 0.1 N•m)
Compressor lead
U : CN200, Red
V : CN201, White
W : CN202, Black
Remove the power supply cable from the
power supply terminal block.
Power supply lead L: Red
Power supply lead N: White

CDB P.C. board

(CN804)
, 3) of
1
Compressor
lead
Compressor
case thermo
High pressure switch relay connector
- 97 -
FILE NO. SVM-18052
Remarks
Terminal relay
Power supply
connector
connector
UART UART
(CN802)
CDB fixed board
Earth screw
Reactor relay connector
4-way
IPDU
valve coil
P.C. board
UART
Fan motor
relay connector
Power supply terminal block