Hitachi UTOPIA RAS-4HVRP2E - Removing Display PCB; Removing Other Electrical Components

9 Servicing
RAS-3HVRC2
SMGB0136 rev.0 - 07/2021
183
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9.2.9 Removing Display PCB
1 Remove the pipe cover following “9.2.1
Removingthepipecover”.
2 Remove 1 xing screw and remove the
terminal cover.
3 Disconnect all the wiring connected to
the display PCB.
4 Hold the upper part of 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.
6-Electricalboxcover.
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? NOTE
• 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.
• 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.
• Differentdipswitchsettingshallbeappliedforeachmodelwhentheelectricalboxisreplaced;Seechapter“10.Troubleshooting”.
• Payattentionnottoclampanywiringbetweenplatesorelectricalcomponentswhenclosingelectricalboxcoverorfrontcoverat
reassembling.
9.2.10 Removing other electrical components
1 Remove the pipe cover following “9.2.1Removingthepipecover”.
2 Remove 3 xing screws and remove the upper cover.
3 Remove the electrical box cover.
4 Removing Electrical Components.
Remove the 2 xing screw and remove the reactor.
- To mount components be sure to match the wiring connection with the mark band codes.
1 Electrical box cover
2 Partition plate
3 Fuse
4 Electrical box
5 Reactor
6 PCB
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