Hitachi RAS-(3-6)HVNC1(E) Service Manual page 451

10 Servicing
10.8.15.2 Removing Inverter module
1 Remove the service cover following
service cover".
2 Open the P plate turning counter clockwise approximately
90° following "10.8.9 Opening electrical box (P-Mounting
Plate)".
3 Check that the LED201 (red) on Inverter is OFF when the
P plate is opened.
4 Remove 4 screws M3, remove the bushes and remove
the spacers fixing the inverter.
N O T E
When mounting again be sure to place the bushes and spa-
cers.
Removing Diode Module (DM)
1 Disconnect the wirings of terminal + - U V W on the diode module.
2 Remove 2 M5 fixing screws on the diode module.Remove the dio-
de module from the electrical box.
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 fixing 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
damage 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.
437
SMGB0087 rev.0 - 12/2013
"10.8.1 Removing
Holder
PCB
M3 screw
Bush
1 5 Screws (M5)
Fixing screw (M5)
2
1 Screws for transistor module (M4)
Screw (M5)
2
PCN301
3
PCN302
4
Screws for PCB (M3)
5
CN3
6
Inverter PCB
7
CN206
8
CN2
9
LED201
10
Spacer
Inverter PCB
10