Daikin Aurora Series Service Manual page 303

SiUS341802E
RXLQ72-120TAYCU, RXYQ72-168TAYCU
Point of Measurement and Judgement Criteria
Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
resistance.
When using the analog type of multimeter,
make measurement in resistance
measurement mode in the x1 kΩ range.
PCB and Circuit Diagram
Service Diagnosis
Measuring
Judgement
point
No.
criteria
+ –
1 P31 U
2 P31 V 2 ~ 30 kΩ
3 P31 W
4 U P31
5 V P31
15 kΩ or
6 W P31
more
7 N31 U
(including )
8 N31 V
9 N31 W
10 U N31
11 V N31 2 ~ 30 kΩ
12 W N31
N31 U V W
P31
P11 P21
DM
L1B
L2B
L3B
Remarks
Due to condenser
charge and so on,
resistance
measurement may
require some time.
P31
IGBT
N31
U V W
When using the digital type of multimeter,
make measurement in diode check mode
( )
Measuring
Judgement
point
No.
criteria
+ –
1 P31 U
1.2 V or
2 P31 V
more
3 P31 W
4 U P31
5 V P31
6 W P31
0.3 ~ 0.7 V
7 N31 U
8 N31 V
9 N31 W
10 U N31
1.2 V or
11 V N31
more
12 W N31
Check
Remarks
Due to condenser
charge and so on,
resistance
measurement may
require some time.
Due to condenser
charge and so on,
resistance
measurement may
require some time.
290