LG CL18F - Page 81

Part 4 Trouble Shooting
- 81 -
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RED
BLACK
T
S RT
DC_Link
IGBTM
GND
P
U
V
W
7 kW (U3)
Check Point
Multi Meter Measured value
Mode BLACK RED Normal Abnormal
IGBTM
High side Didoe
DC_Link
R
0.35 V
~
0.7 V
Non-normal
S
T
IGBTM
Low side Didoe
R
IGBTM
GND
S
T
IGBTM
Hige side IGBT
P
U
V
IGBTM
Low side IGBT
W
U
IGBTM
GND
V
W
n IPM Check Point