Toshiba RAS-B10GKVP-E Service Manual page 111

No. Part name
Control 1. Disconnect the leads and connectors connected to
4
board the other parts from the control board assembly.
assembly
1) Leads
2) Connectors (×8)
These connectors have a disconnect prevention
mechanism: as such, the lock on their housing
must be released before they are disconnected.
2. Remove the control board assembly from the P .C.
board base.
(Remove the heat sink and control board assembly
while keeping them screwed together.)
Disengage the four claws of the P .C. board base,
hold the heat sink, and lift to remove it.
3. Remove the two fixing screws used to secure the
heat sink and control board assembly.
4. Mount the new control board assembly.
When mounting the new control board assembly,
ensure that the P .C. board is inserted properly into
the P .C. board support groove.
5. Disconnect the connectors.
6. Remove the two screws (PT2F-4X10MS-ZN), then
remove the Sub P .C. board base while disengaging
the claws from the square holes.
7. Disengage the two claws of the Sub P .C. board base
and remove the Sub P .C. board.
Procedure
• 3 leads (black, white, orange) connected to
terminal block.
• Lead connected to compressor :
Disconnect the connector (3P).
• Lead connected to reactor :
Disconnect the two connectors (2P).
Main P.C. board
CN300 : Outdoor fan motor (3P: white)*
(See NOTE)
CN701 : 4-way valve (2P: yellow)*
Sub P.C. board
CN01 : TE sensor (2P: white)*
CN11 : PMW (6P: white)
CN12 : PMV (6P: red)
CN04 : TS sensor (3P: white)*
CN02 : TD sensor (3P: white)*
CN03 : TO sensor (2P: white)
CN05 : TGa sensor (3P: yellow)
CN14 : TGb sensor (3P: red)
CN10 : Case thermo (2P: blue)*
CN07 : Lead for communication
CN13 : Lead for AC power supply
NOTE
NOTE
NOTE
– 111 –
Remarks
CN701
CN300
Main P.C. board
Ty lap tie
Connector Two claws
Sub
Hook
P.C. board
base
Two screws
(PT2F-4X10MS-ZN)
CN14
CN01
CN02
CN05
CN03 CN04
CN10
CN07
CN12
CN11
CN13
Sub P.C. board
CN300, CN701, CN600 and
CN603 are connectors with
locking mechanisms: as such,
to disconnect them, they must
be pressed in the direction of
the arrow while pulling them
out.
P.C. board base
P.C. board