Toshiba RAS-13NKV-E Service Manual page 87

No. Part name
4
Control board
assembly
5
Rear cabinet
Procedures
1) Disconnect lead wires and connectors
connected from the control board
assembly to other parts.
1. Lead wires
Connection with terminal block :
3 wires (Black, White, Orange)
Connection with compressor :
Remove the connector (3P)
Connection with reactor :
2. Connectors
CN300 : Outdoor fan (3P, White)
CN701 : 4-way valve (3P, Yellow)
CN600 : TE sensor (2P, White)
CN601 : TD sensor (3P, White)
CN603 : TS sensor (3P, White)
CN602 : TO sensor (2P, White)
CN700 : Pulse modulating valve
(6P, White)
2) Remove the control board assembly from
P.C. board base.
1. Main control board assembly side
Remove two claws of P.C. board base, and
remove upward the heat sink with hands.
Remove three screws fixing the heat sink
and main control board assembly side, and
replace the board with a new one.
1) Perform work of item 1 of 1, 1 and 2, 3.
2) Remove fixed screws fixing to the bottom plate.
(ST1T∅4 x 10s 3 pcs.)
3) Remove fixed screws fixing to the heat
exchanger. (ST1T∅4 x 10s 2 pcs.)
4) Remove fixed screw fixing to the valve mounting
plate. (ST1T∅4 x 10s 1 pc.)
CN300, CN301 and CN701, etc. at the
control board assembly side are
connectors with locks. Therefore,
remove the connector while pushing
the part indicated by an arrow.
When mounting a new board, check
that the board is correctly set in the
groove of base holder of P.C. board
base.
– 86 –
FILE NO. SVM-05027
Remarks
CN701
CN601 CN603
CN600
CN700
CN500
CN602
CN300
P.C. board base
P.C. board
Reactor