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
+-
1P3 U
2 to 15kΩ2P3 V
3P3 W
4U P3
Not less
than
15kΩ
(including)
It may take
time to
determine the
resistance due
to capacitor
charge or else.
5V P3
6W P3
7N3 U
8N3 V
9N3 W
10 U N3
2 to 15kΩ11 V N3
12 W N3
When using the digital type of multiple tester, make
measurement in diode check mode ( ).
No.
Measuring point
Criterion Remark
+-
1P3 UNot less
than
1.2V
(including)
It may take time to
determine the voltage
due to capacitor
charge or else.
2P3 V
3P3 W
4U P3
0.3 to 0.7V
5V P3
6W P3
7N3 U
8N3 V
9N3 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
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