Hitachi RAS-(3-6)HVNC1(E) - Page 410

10 Servicing
396
SMGB0087 rev.0 - 12/2013
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.
6 Reassemble the parts in the reverse order of removing order.
N O T E
• Toconnectwiringatreassembling,ensurethattheterminalnum-
bersandwiringmarkbandcodesarematched.Ifconnectionsare
wrong,thereisthepossibilityofwrongoperationandtocauseda-
magetoelectricalparts.
• WhenattachingthePCB,orwhenattachingthepartsattachedto
thePCB,payattentionnottoclampanywiringbetweenplatesor
electricalcomponents.
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