Toshiba RAS-B10SKVP-E Service Manual page 105

No. Part name
4 Control 1. Disconnect lead wires and connectors connected
board from the control board assembly to other parts.
assembly
1) Lead wires
*1 • Connection with 4-way valve : Remove the connector (3P).
2) Connectors
*1 CN603 : TS sensor (2P , Black)
*1 CN604 : TE sensor (2P , White)
*1 Heat pump model only.
2. Disconnect cable connecting the main control board
assembly side and sub-control board assembly.
• Main control board assembly side
• Sub-control board assembly side
3. The connecting cable connecting compressor and
P .C. board base and that connecting reactor and
P .C. board base are fixed to the inverter box with
bundling band. Cut off bundling band.
4. The connecting cables of the main P .C. board
base and the sub-P.C. board base are fixed with
bundling band. Cut off bundling band.
5. Remove the control board assembly from P .C.
board base.
1) Main control board assembly side
2) Sub-control board assembly side
Procedure
• Connection with terminal block :
6 wires (Red, Orange, Pink, Black and two White wires)
• Connection with compressor : Remove the connector from CN09, 10, 11 (3P, White).
• Connection with reactor :
Remove the connector from P08, 09 (2P , White) and P12, P13 (2P , Gray).
• Connection with case thermo. : Remove the connector (2P).
• Sub-control board assembly side
CN300 : Outdoor fan (3P, White)
CN301 : Outdoor fan position detection (5P , White)
CN601 : TO sensor (2P , White)
CN602 : TD sensor (3P , White)
CN605 : TGa sensor (3P , Yellow)
CN606 : TGb sensor (3P , White)
CN607 : TGc sensor (3P, Green)
CN701 : A room pulse motor valve (6P , Yellow)
CN702 : B room pulse motor valve (6P , White)
CN703 : C room pulse motor valve (6P , Red)
CN04 : Connecting cable (3P , White)
CN05 : Connecting cable (2P , White)
CN06 : Connecting cable (5P , Red)
CN13 : Connecting cable (5P , Red)
CN302 : Connecting cable (3P , White)
CN303 : Connecting cable (2P , White)
CN800 : Connecting cable (5P , Red)
CN501 : Connecting cable (3P , Red)
• Remove two claws of P .C. board base, and
remove upward the heat sink by hands.
• Remove three screws fixing the heat sink and
main control board assembly side.
• Remove red, orange, brown, and black connect-
ing cables connected to the diode block.
• Replace the P .C. board with a new one.
• Remove P .C. board base from the inverter box.
• Remove three claws of P .C. board base, and
replace the board with a new one.
– 105 –
Remarks
CN601~
CN608
CN301 CN300
CN703
CN702
CN701
CN300, CN302, CN303, CN501,
CN606, CN701, CN702, CN703,
case thermo. connector at the
sub-control board assembly side
are connectors with locks.
Therefore, remove the connector
while pushing the part indicated
by an arrow.
P.C. board base
P.C. board
When mounting a new board,
check that the board is correctly
set in the groove of base holder
of P .C. board base.