Toshiba RAS-B05E2KVG-E Service Manual page 126

No.
Part name
Control board assembly
4
Procedures
1. Disconnect the leads and connectors connected to
the other parts from the control board assembly.
1) Leads
• 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).
2) Connectors
CN31 : Outdoor fan motor (3P: white)*
(* : See Note)
CN73 : PMV (6P: white)
CN64 : TS sensor (3P: white)*
CN62 :TD sensor (3P: white)*
CN63 : TO sensor (2P: white)
NOTE NOTE
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. P.C. board base. (Remove the heat sink a
control board assembly while keeping them
screwed together.)
NOTE
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.
NOTE
NOTE
When mounting the new control board
assembly, ensure that the P.C. board is
inserted properly into the P.C. board
support groove.
CN31,CN73,CN64, CN62 and CN63
are connectors with locking
mechanisms: as such, to
disconnect them, they must be
pressed in the direction of the
arrow while pulling them out.
- 126 -
Remarks
P.C. board base
P.C. board