Hitachi RAS-4-HNCE - Noise Filter (NF)

10. Servicing
436
SMGB0079 rev.0 - 01/2013
Removing Diode Module (DM)
1 Disconnect the wirings of terminal + - U V W on the diode module.
2 Remove 2 M5 xing screws on the diode module.
3 Remove the diode module from the electrical box.
1: 5 Screws (M5)
2: Fixing screw (M5)
Removing Transistor Module (IPM)
1 Disconnect all the wirings connected to the transistor module.
2 Remove the connectors CN2, CN3, CN206, PCN301 and PCN302 from the transistor module.
3 Disconnect the wirings of P N U V W on the transistor module.
4 Remove 4 M4 xing screws on the transistor module.
5 Remove the transistor module from the electrical box.
1. Screws for transistor module (M4)
2. Screw (M5)
3. PCN301
4. PCN302
5. Screws for PCB (M3)
6. CN3
7. Inverter PCB
8. CN206
9. CN2
10. LED201
6 Reassemble the parts in the reverse order of removing order.
N O T E
Identifyterminalwiththemarkbandwhenreassemblingtoavoidincorrectwiring.