Toshiba RAV-SM304SDT-TR Service Manual page 162

No. Part name
1. Control P.C. board
Exchange of
4
electric parts
Never disassemble the inverter for 1 minute
after power has been turned off because an
electric shock may be caused.
NOTE:
It is difficult to take out it because of radiator
grease for heat sink.
NOTE:
Do not forget to attach the aluminum plate (Q201)
and the insulating sheet (Q300).
(Applying a little of radiator grease at the rear
surface of the insulating sheet in advance to
adhere to the heat sink makes easy the work.)
Procedure
1) Carry out work of 1 of
WARNING
2) Remove the connectors connected to the
control P.C. board.
(Indoor power supply, temperature sensors,
PMV coil, 4-way valve coil, compressor case
thermo, fan motor)
∗ Unlock the lock of the housing part and
then remove the connectors.
3) Remove the lead wires connected to the
control P.C. board.
(Torque at tightening time: 1.47 ± 0.1N•m)
Compressor lead
U: CN200 Red
V: CN201 White
W: CN202 Black
Reactor lead
Relay connector: 2 positions
Remove the power wire from the power
supply terminal block.
(Torque at tightening time: 2.5 ± 0.1N•m)
4) Remove the earth wire from the control P.C.
board. (Truss B tight screw Ø4 × 6, 1 pc.)
5) Remove the fixing screws of the control P.C.
board.
(Screw with collar for fixing element Ø3 × 16,
7 pcs. Pan S tight screw for fixing P.C. board
Ø3 × 20, 1 pc.)
6) Remove the control P.C. board.
(Supporter: 5 positions)
7) Mount a new control P.C. board.
.
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Remarks
Compressor lead
Relay connector:
2 positions
Control
(1 at rear side)
P.C. board
Fan motor Bundling band
(Reactor lead)
Compressor Compressor Compressor
case thermo case thermo case thermo
Temperature Temperature Temperature
Reactor lead wires Reactor lead wires Reactor lead wires
sensor sensor sensor
(White,Charcoal gray) (White,Charcoal gray) (White,Charcoal gray)
4-way valve coil 4-way valve coil 4-way valve coil
PMV coil
Indoor power supply
Screw for fixing P.C. board
Screw for fixing element (7 positions) Screw for fixing element (7 positions) Screw for fixing element (7 positions)
Power supply terminal block Power supply terminal block Power supply terminal block
Control P.C. board Insulating sheet (Q300)
Aluminum plate (Q201)
Radiator Radiator Radiator
grease grease grease
Earth wire Earth wire Earth wire