Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 145

(ii) Models FDC100VNX, 125VNX, 140VNX
2) Model FDC100VSX, 125VSX, 140VSX
1) Replace the PCB after elapsing 3 minutes from power OFF.
(Be sure to measure voltage (DC) on both capacitor terminals located in control
back, and check that the voltage is discharged sufficiently.)
2) Disconnect the connectors from the control PCB.
3) Disconnect the white wiring passing through CT1 on the PCB before replacing the PCB.
4) Match the setting switches (SW3-5, JSW) with the former PCB.
5) Tighten up a screw after passing white wiring through CT1 of the changed.
6) Connect the connectors with the control PCB referring to the parts arrangement of Fig.1.
(Confirm the connectors are not half inserted.)
CNW
CNA2
CT1
CNW2
CNI3
CNI1
SW4
SW3
CNEEV2
CNEEV1
Parts arrangement view
Connectors are not half
inserted
SW（J5-7）
LED2
LED1
CNPS
CNB CNTH
CNIP
144
- -
After elapsing 3 minutes
CNH
from power OFF
CNM
CNF
CNS
CNN1
CNN2
CNR
CNA1
CNFAN1
JSW
CNFAN2
SW5
Fig.1 Enlarged figure of parts location
'19 • PAC-T-327
PCA012D043
C
PCA012D043
C
(－)
(＋)
Voltage measurement parts
(Pin terminals 1-2 of CNA1)