LG CT09F Service Manual page 107

Part 4 Trouble Shooting
7 kW (U3)
RED
BLACK
U
V
W
Check Point
IGBTM
High side Didoe
IGBTM
Low side Didoe
IGBTM
Hige side IGBT
IGBTM
Low side IGBT
T S R DC_Link
T
- 107 -
Multi Meter
Mode BLACK RED
R
DC_Link S
T
R
IGBTM
S
GND
T
U
P
V
W
U
IGBTM
V
GND
W
P
IGBTM
GND
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Measured value
Normal Abnormal
0.35 V
~ Non-normal
0.7 V