Hitachi RAS-3-HVNC - Removing Electrical Components

10. Servicing
372
SMGB0079 rev.0 - 01/2013
10.3.3.15 Removing electrical components

Removing control PCB (PCB1) and relay PCB (PCB3)
1 Remove the service cover following Removing service cover.
2 Remove all the wiring connected to the control PCB and the
relay PCB.
D A N G E R
DO NOT touch electrical components while the LED1
(Red)isONtoavoidelectricalshock.WaituntiltheLED
turnsoff.
3 Remove the 6 holders for each PCB. Clamp the middle part
of the holders with long-nose pliers and remove it toward
front side.
D A N G E R
DONOTtouchtheelectricalcomponentsonthePCB.
PayattentionnottobendorapplymuchforceontoPCB
inordertoavoidPCBfailure.
Holder
Long-Nose Pliers
Noise Filter
Holder
Noise lter
Long nose pliers
Holder
Printed Circuit Board (PCB1)
Printed Circuit Board (PCB3)
Holder

Removing Inverter module
1 Remove the service cover following Removing service cover.
2 Open the P plate turning counter clockwise approximately 90° following Opening electrical box (P plate).
• Check that the LED201 (red) on Inverter is OFF when the P plate is opened.
D A N G E R
DONOTtouchelectricalcomponentswhiletheLED201(Red)orLED1(Red)areONtoavoidelectricalshock.
WaituntiltheLEDsturnoff.
3 Remove 4 screws M3, remove the bushes and remove the
spacers xing the inverter.
N O T E
Whenmountingagainbesuretoplacethebushesandspa-
cers.
Holder
PCB
Spacer
Inverter PCB
Bush
M3 screw