Cdb P.c. Board; Ipdu P.c. Board - Toshiba RAS-5M34S3AV-E Service Manual

No. Part name
CDB P.C.
5
board
IPDU
6
P.C. board
Procedure
1) Perform works of Detachment 1 of 1 and 4)
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.
2) Remove the connector and the relay connector
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.
3) Remove the earth wire of CDB P.C. board
(Truss head B tight Ø4 × 6, 1 pc.)
4) Remove CDB P.C. board from CDB fixed
board.
5) Mount a new CDB P.C. board.
∗ When connecting the connectors on CDB
P.C. board to support CDB fixed board with
hand.
1) Perform works of Detachment 1 of
, 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.
2) Take off screw for CDB fixed board and the
inverter box. (ST1T Ø4 × 8, 1 pc.)
3) Remove CDB P.C. board assembly.
4) Remove the connectors connected to IPDU
P.C. board. (4-way valve coil, compressor
case thermo, UART × 2, Inter-unit wire)
5) Remove the relay connector for fan
motor, reactor, and High pressure switch.
6) Remove the lead wire connected to IPDU
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

, 3) of
1
Compressor
lead
Compressor
case thermo
High pressure switch relay connector
- 99 -
FILE NO. SVM-15036
Remarks
Power supply Terminal relay
connector connector
UART UART
(CN804) (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