Mitsubishi Heavy Industries MHI FDU71VNXVF1 Technical Manual page 123

(i) Model FDC71VNX
1) Replace the PCB after elapsing 3 minutes from power OFF.
(Be sure to measure voltage (DC) between T26 and T27 on inverter PCB, and check that the
voltage is discharged sufficiently(10V or less). (Refer to Fig.1))
2) Disconnect the connectors from the control PCB.
3) Match the switches setting (SW4) with the former PCB.
4) Connect the connectors to the control PCB. (Confirm the connectors are not half inserted.)
CNTH
CNW2
CNQ1
CNQ2
SW4
CNPS
CNEEV1
CNEEV2
Parts Arrangement View
connectors are not half
inserted
Parts No.
CNS CNH
CNFAN
CNN
CNR
CNI1
CNIP
CNB
CNG1
CNI3
CNA1
CNW
CNA2
122
- -
'12 • PAC-T-178
PCA012D021C
after elapsing 3 minutes
from power OFF
Voltage measurement point
(T26(red) T27(blue))
Fig.1 Position of terminal
G