Toshiba RAV-SM564ATJP-E Service Manual page 106

No. Part name
Exchange of
4
electric parts
SVM-13072.indb 106 SVM-13072.indb 106
Procedure
1. Control P.C. board
1) Carry out work of 1 of
WARNING
Never disassemble the inverter for 1 minute
after power has been turned off because an
electric shock may be caused.
2) Take off screws of cover inverter.
(ST1T Ø4 × 10L, 2 pcs.)
3) 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, hight pressure switch,
display P.C.board).
∗ Unlock the lock of the housing part and then
remove the connectors.
4) Remove connectors connected to the
compressor (3P: Relay connector white) and
reactor (2P: Relay connector white) here,
please cut the bundling band that tie lead wire
compressor to the inverter box and lead wire
reactor to the inverter box.
Remove the power wire from the power
supply terminal block.
(Torque at tightening time: 2.5 ± 0.1N m)
5) Remove the earth wire from the control P .C.
board. (Truss B tight screw Ø4 × 6, 1 pc.)
6) Remove the fixing screws of the control P .C.
board.
(Screw with collar for fixing element Ø3 × 20,
2 pcs. Screw with washer for fixing element
Ø3 × 20, 7 pcs.)
7) Remove the control P .C. board.
(Supporter: 5 positions)
NOTE:
It is difficult to take out it because of radiator
grease for heat sink.
8) Mount a new control P .C. board.
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.)
.
1
Screws
Reactor
lead wires
(white)
Indoor power
supply
Screw for fixing element (7 positions)
Control P.C. board
Radiator grease
– 106 –
FILE NO. SVM-13072
Remarks
Cover inverter
High pressure
switch lead
Display P.C. board
Fan motor
Temperature
sensor
PMV coil
Compressor
case thermo
4-way
valve coil
Earth wire
Power supply
terminal box
Screw with collar for fixing
element (2 positions)
Aluminium plate (Q201)
Insulating sheet (Q300)
11/01/13 1:53 PM 11/01/13 1:53 PM