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Si20-701_B
Troubleshooting by Remote Controller
490
1. Power module checking
When using the analog type of multiple tester, make
measurement in resistance measurement mode in
the x1k
Ω
range.
No.
Measuring point
Criterion
Remark
+
-
1
P3
U
2 to 15k
Ω
2
P3
V
3
P3
W
4
U
P3
Not less
than
15k
Ω
(including)
It may take
time to
determine the
resistance due
to capacitor
charge or else.
5
V
P3
6
W
P3
7
N3
U
8
N3
V
9
N3
W
10
U
N3
2 to 15k
Ω
11
V
N3
12
W
N3
When using the digital type of multiple tester, make
measurement in diode check mode (
).
No.
Measuring point
Criterion
Remark
+
-
1
P3
U
Not less
than
1.2V
(including)
It may take time to
determine the voltage
due to capacitor
charge or else.
2
P3
V
3
P3
W
4
U
P3
0.3 to 0.7V
5
V
P3
6
W
P3
7
N3
U
8
N3
V
9
N3
W
10
U
N3
Not less
than
1.2V
(including)
It may take time to
determine the voltage
due to capacitor
charge or else.
11
V
N3
12
W
N3