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38MGRBQ: Service Manual
3
ELECTRICAL PARTS
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
REMOVE THE ELECTRICAL PARTS
1. Perform the steps from section 1, steps 5-6 and section 2.
2. Disconnect the fan motor connector(5p,white) from the
IPM board.
3. Disconnect the following 6 pieces of connection wires and
connectors between the IPM and other parts.
4. Remove the 4 screws, loosen the 4 hooks then remove the
IPM board.
5. Disconnect the connectors and wires connected from PCB
and other parts.
Connectors:
CN8: Discharge temperature sensor (2p,white)
CN12? F Heatsink temperature sensor(2p,red)
CN9:T3/T4 temperature sensor (2p/2p,white)
CN11:T2B-A,B,C,D,E temperature sensor (2p/2p/2p/
2p/2p,white)
CN15/CN23/CN26/CN30/CN33: Electronic expansion
valve (6p/6p/6p/6p/6p,red)
CN37/CN29/CN21/CN16/CN13/CN7: S-A,S-B,S-C,S-
D,S-E (3p/3p/3p/3p/3p,white)
CN10: High and low pressure switch (2p/2p, white)
Wires:
CN17/CN18: 4-way valve (blue-blue)
CN19/CN20: connected to crankcase heating cable.
(black-red)
CN24/CN25: Electric heater of chassis (orange-orange)
CN1:L-IN (red)
CN3:N-IN (black)
,V(red),W(black)
105
REMARKS
Adapter
board
IPM board
PCB board
CN3(red)
CN2(black)
CN9(10p,white)
CN8,CN5(3p)
CN3
CN1
CN 7
CN 13
CN16
CN 21
CN29
CN 37
CN 8 CN 12
CN 9 CN 11
CN 10
CN30/CN23
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