Mitsubishi Heavy Industries FDF71VNXWVH Service Manual page 64

(v) Models FDC200, 250, 280VSA-W
Exchange the control PCB according to the following procedure.
1. Exchange the PCB after elapsing 3 minutes from power OFF.
2. Measurement was done on both ends of connector (CNA1) during measurement, the voltage (DC) might
charged the electrolytic capacitor, be sure that the voltage is discharged sufficiently (10V of less).
(Refer to Fig.2.)
3. Disconnect the connectors from the control PCB. (Refer to Fig.1.)
4. Disconnect the white or blue wiring passing through CT1 on the PCB before exchanging the PCB.
5. Match the setting switches (SW3-5, 7, JSW1) with the former PCB.
6. Tighten up a screw after passing white of blue wiring through CT1 of the changed.
7. Please connect the connectors with the same place. (Confirm the connectors are not half inserted.)
Fig. 1 Parts arrangement view
LED2(Red)
LED1(Green)
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'22 • PAC-SM-426
PCA012D110