Daikin REYQ72-432XAYCU, Service Manual

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SiUS371901EB Check
Part 6 Service Diagnosis 422
PCB and Circuit Diagram
REYQ144/168XATJU(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 P31 U
2 ~ 30 k
Ω
– 1.2 V or more
Due to condenser
charge and so on,
resistance
measurement may
require some time.
2 P31 V
3 P31 W
4 U P31
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 P31
6 W P31
7 N31 U
8 N31 V
9 N31 W
10 U N31
2 ~ 30 k Ω – 1.2 V or more
Due to condenser
charge and so on,
resistance
measurement may
11 V N31
12 W N31
X 8 A
X900A
X4A
K5R
V 2R
K 8 4R
N
T3A
N =1
W V
R72T
X6A
+
-
R71T
X903A
T2A
N =1
PS
X7A
R1
X63A
X601A
C1
+
U
P31
V 1D
HAP
N 31
X41A
t˚ t˚
P
230 V 25K
U
V
W
N 31
P31