Daikin REYQ-XA, Service Manual

Page: 393 / 441

SiUS371901E Check
Service Diagnosis 380
REYQ144/168XAYDU
Point of Measurement and Judgment Criteria
Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
resistance.
PCB and Circuit Diagram
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
(
)
No.
Measuring
point
Judgment
criteria
Remarks No.
Measuring
point
Judgment
criteria
Remarks
+ – + –
1 P31 U
2 ~ 30 k
Ω
—
1 P31 U
1.2 V or
more
Due to condenser
charge and so on,
resistance
measurement may
require some time.
2 P31 V 2 P31 V
3 P31 W 3 P31 W
4 U P31
15 k
Ω
or
more
(including
)
Due to condenser
charge and so on,
resistance
measurement may
require some time.
4 U P31
0.3 ~ 0.7 V —
5 V P31 5 V P31
6 W P31 6 W P31
7 N31 U 7 N31 U
8 N31 V 8 N31 V
9 N31 W 9 N31 W
10 U N31
2 ~ 30 k
Ω
—
10 U N31
1.2 V or
more
Due to condenser
charge and so on,
resistance
measurement may
require some time.
11 V N31 11 V N31
12 W N31 12 W N31
X6A
N
+
U
X63A
R72T
R1
R401
C51
W
PS
X900A
+
t˚
C48
RED
P31
V2R
N32
V
P
P32
K3R
F1U
X904A
HAP
X41A
t˚
X4A
WHT
X7A
X601A
R133
+
–
V1D
R71T
R131
K84R
X8A
BLK
X5A
N31
460 V 25K
U V W
N31
P31