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232
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'11 • SCM-SM-110
Inverter PCB (PWB2) on the 2nd layer
1. Dismount the 1st layer
according to the procedure
for control PCB (PWB1) and
Sub PCB (PWB4).
2. Loosen 3 screws and
disconnect the cables for
compressor.
Note: Be sure to do this work
after elapsing 3 minutes
from power OFF.
3. Loosen 6 screws and
disconnect the cables of P1,
P2, P3 and N1, N2, N3.
4. Disconnect 3 connectors of
CNI2, CNI4 and CNACT1.
5. Loosen 2 screws for fixing
IPM and radiation fin.
6. Pinch the head of locking
supports (8 pieces) and
remove the Inverter PCB
(PWB2).
Noise filter PCB (PCB3 & PCB5) on the back side of the 1st layer
Layout
U
V
W
P2
(RD)
CNI2
P1
(RD)
P3
(RD)
N2
(BL)
N1
(BL)
N3
(BL)
CNI4
CNACT1
2nd layer
U
(RD)
V
(WH)
W
(BL)
Connectors
Locking supports
(8 pieces)
2 screws for fixing IPM and radiation fin
PCB3
PCB5
Lower
Upper
IPM
Power transistor
on the back side
Screws
