Hitachi RAS-3-HVNC - Removing Electrical Components

10. Servicing
358
SMGB0079 rev.0 - 01/2013
10.3.2.15 Removing electrical components

Removing control PCB (PCB1)
1 Remove the service cover following Removing service cover.
2 Remove all the wiring connected to the control 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. 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
Printed Circuit Board (PCB1)
Holder
Printed Circuit Board (PCB1)

Removing Inverter module
1 Remove the service cover following Removing service cover in this chapter.
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)isONtoavoidelectricalshock.Waituntilthe
LEDturnsoff.
3 Remove all the wiring connected on the Inverter.
4 Remove 4 screws which x the Inverter.
Hold the wires placed at the bottom side.
5 Pull the Inverter toward right side from the front of the pro-
duct. (Remove along with the plastic case and the radiation
n).
Fixing Screw
(4 pcs.)
Inverter PCB
Fixed with Cord Clamp
Inverter PCB
Fixed with cord clamps
4 xing
screws