Checking Inverter Pcb In Case Of Power Off - LG Multi V5 Service Manual

CHECKING INVERTER PCB IN CASE
OF POWER OFF
Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and service
WARNING
troubleshooting of the Multi V product.
Figure 87: Checking Inverter PCB.
R
S
T
U
V
W W
Table 94: Inverter PCB Measurements.
Check Mode
5V Part Resistance
15V Part Resistance
IGBTM
Diode (9EA)
214
Multi-Meter
Black Red Normal
GND 5V
GND 15V
U
V
P-(UVW)
W
U
V N
0.38V ~ 0.7 V
W
R
P-(RST) S
T
R
S N
T
- 0.38 ~ 0.7 V
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
N
P
BLACK (-)
RED (+)
Measured Value
Abnormal
Not normal
Not normal
Figure 88: Multi-Meter.
Red
Black