Hitachi UTOPIA RAS-4HVRP2E Service Manual page 202

9 Servicing
RAS-(4-6)H(V)(R/N)(C/P)2E
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Disassembly / Assembly the Inverter module (PCB1)
1 Disassembly the upper cover according to the item
2 Open the electrical box according to the item "Opening / Closing Electrical box (P plate)".
3 Disconnect all the wiring connected to the control PCB.
4 Remove the 4 fixing screws -1-.
5 Remove the 4 fixing holders -2- and disassembly the control PCB.
6 Assembly the new control PCB and fix it with 4 fixing holders -2-.
7 Assembly the 4 fixing screws -1-.
8 Connect all the wiring connected to the control PCB as it was originally.
9 Close the electrical box according to the item "Opening / Closing Electrical box (P plate)".
10 Assembly the upper cover according to the item
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Disassembly / Assembly the DSW module (PCB2)
1 Disassembly the service cover according to the item "9.3.1 Removing service cover".
2 Disconnect all the wiring connected to the control PCB.
3 Remove the 4 fixing holders -2- and disassembly the control PCB2 -1-.
4 Assembly the new control PCB -1- and fix it with 4 holders -2-.
5 Connect all the wiring connected to the control PCB as it was originally.
6 Assembly the service cover according to the item "9.3.1 Removing service cover".
200 SMGB0136 rev.0 - 07/2021
"9.3.3 Removing upper cover".
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"9.3.3 Removing upper cover".
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