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4-44
Service Manual
MAINTENANCE
4.1.18.2 Removing Inverter PCB (PCB2)
(1) Disconnect all the wirings to the CN2, CN206, PCN301.
(2) Disconnect the wirings for the transistor module (U, V, W) and C on the Inverter PCB (PCB2). Then,
disconnect the wirings for U and V from the current sensor.
(3) After removing three M3 screws, remove the bushes and collars from the inverter PCB (PCB2). When
reassembling the inverter PCB (PCB2), the bushes and collars should be secured correctly.
NOTE:
Do not touch any electrical components while the LED201 (red) of the inverter PCB (PCB2) is ON.
Otherwise, it may lead to an electrical shock.
Turn OFF all power source switches.
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Tool
Phillips Screwdriver
NOTES:
1. When reassembling the electrical components, match the terminal numbers with the mark band
numbers. If they are incorrectly connected, a malfunction may occur or the electrical components may
become damaged.
2. When closing the outdoor unit PCB (PCB1) for reassembly, protect the cables from catching on the plate
edges or electrical components.
Holder
Inverter PCB
(PCB2)
Bush
Screw
Inverter PCB
(PCB2)
Holder
Collar
Transistor Module
Содержание YVAHP072B31S
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Страница 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
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Страница 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
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