Daikin VRV Aurora RXLQ-TATJU Series Service Manual page 383

SiUS341802EC
RXLQ72-120TAYCU, RXLQ72-120TAYCA, RXLQ72-120TBYCA, RXYQ72-168TAYCU,
RXYQ72-168TAYCA
Point of Measurement and Judgment Criteria
 Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
No.
1
2
3
4
5
6
7
8
9
10
11
12
PCB and Circuit Diagram
Part 6 Service Diagnosis
resistance.
When using the analog type of multimeter,
Measuring
make measurement in resistance
point
measurement mode in the x1 k range.
+ – Judgement Criteria
P31 U
P31 V
2 ~ 30 k
P31 W
U P31
V P31
W P31
15 k and more
(including )
N31 U
N31 V
N31 W
U N31
V N31
2 ~ 30 k
W N31
N31
L1B
L2B
L3B
When using the digital type of
multimeter, make measurement in
diode check mode (
Remarks Judgement Criteria
–
Due to condenser
charge and so on,
resistance
measurement may
require some time.
–
U V W
P31
P11 P21
IGBT
DM
N31
U
).
Remarks
Due to condenser
charge and so on,
1.2 V or more resistance
measurement may
require some time.
0.3 ~ 0.7 V –
Due to condenser
charge and so on,
1.2 V or more resistance
measurement may
require some time.
P31
V W
Check
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