Mitsubishi Electric FDT125VNVF Technical Manual page 346

2) Model FDC200,250VS
a) Replace the PCB after elapsing 3 minutes from power OFF .
( Be sure to measure the voltage (DC) of two places (1.Resistor on PCB at the front of controller
2.Both capacitor terminals located in back of controller), and check that the voltage is discharged
sufficiently. (Refer to Fig.1))
b) Disconnect the connectors from the control PCB.
c) Disconnect the blue wiring passing through CT1 on the substrate before replacing the PCB.
d) Match the setting switches (SW3-5,JSW) with the former PCB.
e) Tighten up a screw after passing blue wiring through CT1 of the changed.
f) Connect the connectors to the control PCB. (Confirm the connectors are not half inserted)
CNW
CNA2
CT1
CNW2
CNI1
SW4
SW3
CNEEV2
CNEEV1
Parts No.
Parts Arrangement View
connectors are not half inserted
CNPS
CNU CNTH
CNIP
CNB
CNH
CNM
CNS
CNR
CNA1
CNFAN1
CNFAN2
JSW
SW5
Front View
Fig.1 Position of capacitor
345
- -
'12 • PAC-T-174
PCA012D017F
F
after elapsing
3 minutes from
power OFF
Voltage measurement
parts
Voltage measurement parts
Side View