Mitsubishi Heavy Industries FDTC50ZHXV Technical Manual page 265

CNTH
CNW2
CNQ1
CNQ2
SW4
CNPS
CNFAN
CNEEV1
CNEEV2
Fig.1 Parts arrangement view
connectors are not hal f
inserted
2) Model FDC100VN, 125VN,
a) Replace the PCB after elapsing 3 minutes from power OFF.
(Be sure to measure voltage (DC) on both capacitor terminals located in controller back, and check that the
voltage is discharged sufficiently.(Refer to Fig.2))
b) Disconnect the connectors from the control PCB.
c) Disconnect the white wiring passing through CT1 on the PCB before replacing the PCB.
d) Match the setting switches (SW3-5,JSW) with the former PCB.
e) Tighten up a screw after passing white 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
CNI3
CNI1
SW4
SW3
CNEEV2
CNEEV1
Parts No
CNA2
CNS CNH
CNN
CNR
140VN
CNB CNTH
CNIP
.
Fig.1 Parts arrangement view
connectors are not hal f
inserte d
CNI1
CNIP
CNB
CNG1
CNI3
CNA1
CNW
Fig.2 Position of terminal
CNH
CNS
CNR
CNA1
CN FAN1
JSW
SW5
CNPS
Fig.2 Position of capacitor
256
– –
after elapsing 3 minute s
from power OFF
Voltage measurement point
(T26(red), T27(blue))
after elapsing 3 minute s
from power OF F
Voltage measurement parts