Hitachi RAS-(4-6)HVRNS2E - Removing Display PCB

10 Servicing
407
SMGB0064 rev.0 - 08/2011
10
1. Electrical box cover.
2. Two screws.
Removing Display PCB
1 Remove the pipe cover following Removing pipe cover, see on page 401.
2 Remove one (1) xing screw and remove the terminal cover.
3 Disconnect all the wiring connected to the display PCB.
4 Hold the upper part of four (4) holders with long nose pliers and remove the display PCB.
1. Display PCB (PWB2).
2. Terminal cover.
3. Long nose pliers.
4. Display PCB.
5. Holder.
1
2
3
4
5
N O T E
• DO NOT touch electrical components on the PCB. Pay attention not to bend or apply much force onto PCB in
order to avoid PCB failure.
N O T E
1 To connect wiring at reassembling ensure that the terminal numbers and wiring mark band codes are matched.
Incorrect wiring may result in malfunction or damage of electrical components.
2 Different dip switch setting shall be applied for each model when the electrical box is replaced; See chapter 8
“Troubleshooting”.
3 Pay attention not to clamp any wiring between plates or electrical components when closing electrical box
cover or front cover at reassembling.
Removing other electrical components
1 Remove the pipe cover following Removing pipe cover, see on page 401.
2 Remove three (3) xing screws and remove the upper cover.
3 Remove the electrical box cover.