Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 144

(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.2))
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.)
LED2 CNR
(Back side)
CNW CNH CNS
LED1
(Back side)
CNA1
CNI3
CNG1
CNI1
CNZ
Fig.1 Parts arrangement view
CNN2
CNN1 CNFAN CNEEV1
CNEEV2 CNPS
CNA2
CNV
CNB
Parts No.
143
- -
After elapsing 3 minutes
from power OFF
Voltage measurement point
(T26 (red) T27 (blue))
SW4
CNQ2
CNQ1
CNE
CNDRM
CNW2
Fig.2 Position of terminal
Presence and shape of electric component may
*
vary according to model.
Connectors are not
half inserted
'19 • PAC-T-327
PCA012D049A
A