LG FM21AH UE3 - Page 94

5. Trouble Shooting
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Vdc
Vdc
< Inverter PCB> <DC Link Voltage Check Point> <Connection Check Point>
GND
GND
GND
GND
<DC_LINK Sensing Check Point>
N N
48/56k
LL
DC_LINK
DC_LINK
DC_LINK