Daikin REYQ72-432XAYCU, Service Manual

Page: 430 / 482

Check SiUS371901EB
423 Part 6 Service Diagnosis
PCB and Circuit Diagram
REYQ72-120XAYDU(A)
Point of Measurement and Judgment Criteria
 Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make
measurement of resistance.
No.
Measuring
point
When using the analog type of multimeter,
make measurement in resistance
measurement mode in the x1 k Ω range.
When using the digital type of
multimeter, make measurement in
diode check mode ( ).
+ – Judgement Criteria Remarks Judgement Criteria Remarks
1 P21 U
2 ~ 30 k
Ω
– 1.2 V or more
Due to condenser
charge and so on,
resistance
measurement may
require some time.
2 P21 V
3 P21 W
4 U P21
15 k Ω and more
(including
∞
)
Due to condenser
charge and so on,
resistance
measurement may
require some time.
0.3 ~ 0.7 V –
5 V P21
6 W P21
7 N5 U
8 N5 V
9 N5 W
10 U N5
2 ~ 30 k Ω – 1.2 V or more
Due to condenser
charge and so on,
resistance
measurement may
11 V N5
12 W N5
R 8 67
V 2R
C47
X41A
C4 8
HAP
+
P11
X601A
BLK
X2A
N 5
X5A
X4A
–
F601U
+
RED
+
L11
W HT
L12
+
PS
K3R
L3B
L2B
V
R 8 65
P4
X602A
N 4
X63A
K1M
–
P5
U
V 1R
L1B
R313
P21
W
X6A
460 V 16K
U
V
W
N 5
P21