Power Module Checking - Daikin R71FUV1 Service Manual

Si20-701_B

1. Power module checking

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