Midea MUE-48HRFN1-M, Service Manual

Page: 42 / 181

39
MOE30U-48HFN1-M
PCB board of MOB30-09HFN1-MX0W, MOB30-12HFN1-MV0W, MOCA30-18HFN1-MT0W,
MOB01-09HFN1-MW0W, MOB01-12HFN1-MV0W, MOCA01-18HFN1-MT0W, MOCA31-18HFN1-MT0W
MOD31-24HFN1-MT0W
Suction
Exhaust
+
17122200000309
HuiQi
Te
stP
o
rt
1
1
HEAT
4-WAY
W
BLUE
BLACK
RED
V
U
TP
T3
T4
No
NO
NO
YES
Low-Fre
No
Have
YES Have
Temp-Pro
Rdi
Ripm
11
PMV
44
15V 17V
[V1.8] 2015-01-16
7815
22
1
34
REACTOR
311 TEST
7805
N-IN
D
C-
FAN
A
C-F
A
N
L-IN
S
KFR-72W/BP2-(311+0515+PSS30S92F6-AG+6822+HEAT).D.13.WP2.1
12V 5V
CN3
DSA1
K
A
K
D5
R18
R46
R107
A
R515A
R316A
R18A
I C
4
0
3
D4
C2
1
R5
4
R5
5
R6
8
R6
9
R5
6
R9
0
C1
4
J4
R1
6
R5
2
J5
+
LED
1
R78
R142
R141
R155
R154
R153
R152
R151
R150
C3
R1
0
8
R1
0
7
RC2
RC4
RC1
RC3
C1
FUSE1
65T 250V30A
ZR1
ZR2
CN30
R1
0
9
R5
8
R6
1
R6
0
R5
9
C3
0
1
C7
6
C3
1
2
R3
1
5
C8
3
C85
C8
6
C9
1
R156 R158
R1
6 9
R1
7
0
R1
7 1
R1
7 2
IC34
D1
1
R1
5
7
R1
5
9
C3
1 0
C3
0
6
C3
0
8
C3
1
1
C3
0
7
C3
0
9
R1
1
0
E305
C302
+
DZ301 Q3
R7
5
R8
4
C1
0
3
CN28
CN29
CN6-1
CN6
CN13
CN12
CN2
CN8
CN7
CN22
DR
CN21
DR
R102
J6
PTC1
CN414
R127 C105
+
E5
IP
M2
C5
0
1
C5
0
3
C5
0
7
C5
0
8
C5
0
9
C5
1
0
C5
1
1
C5
1
2
C5
1
7
+
DZ501 R5
0
1
R5
0
2
R5
0
3
R5
0
4
R5
0
5
R5
0
6
R5
0
9
R5
1
0
R5
1
1
R5
1
2
R5
1
3
R5
1
4
R5
2
3
C502
C5
0
5
+
DZ502
R515
R522
+
DZ
5
0
4
C504
R316
~ ~
IN
AC
-
+
R101
R100
R71
C4
2
CN20
RY5
CN
16
CN18
NTC4
C8
C5
1 3
C514
C5
1
5
C5
1
6
R516
R517 R518
R519
R520
R521
C2
7
IC7
24LC512
33
49
17
1
I C
9
R53
I
C
1
0
1
R160
+
E4
+
E3
R8
3
R82 R81
R8
0
R79
R50
C47
C2
0
R322 R321
R3
2
0
Q2
IC405
+
E10
R1
2
0
R1
6
7
R166
R3
2
+
E1
R12
+ LED3
R4
1
2
R4
1
3
R4
1
4
R415
Rd
i
R
ip
m
R13
CN24
R7
2
R8
R87
R7
4
J3
IC17
+
E24
D2
R124
C2
J2
J1
C7
7
AC
AC
+
-
BR1
C13
D3
R7
RY3
RY4
RY2
CN
5
R23
R24
R25
R26
R27
C7
4
C7
5
RY1
+
E14
C9
C17
C18
C19
C2
3
C2
4
C2
6
C3
2
C33
C35
C36
C3
7
C39
C4
3
C48
C4
9
C52
C6
5
C6
7
C7
8
C87
C8
9
C90
C92
C147
C1
5
3
C25
CN9
CN23
CN39
+
E17
+
E23
+
E28
IC8
24LC08
IC12
24LC08
IC14
+
LED2
OSC1
R5
R30
R31
R40
R4
1
R4
2
R48
R4
9
R6
2
R6
4
R6
5
R6
6
R7
0
R73
R76
R77
R86
R92
R97
R1
6
1
R1
6
2
R1
6
3
R164
R165
R1
7
6
R177
R419
X1
C58
+
+
E405
IC404
R45
Q1
C1
5
C2
2
R21
R22
R2
8
R29
R33
+
E22
R3
R4
R121
C5
+ E6
R1
0
C2
8
C4
CN38
IC10
C7
9
C80
D7
C6
R1
4
8
R6
3
C506
R5
0
7
R508
+
E11
R106
C73
IC21 PC817
IC31
PC817
R1
7
5
R178
C409
IC402
C403
IC11
+
E402
D401
C401 R4
0
3
C411
C40
C50
D4
0
3
R401
R405
R4
0
6
R4
0
4
+
E404
D402
D404
C4
0
8
C402
+
E403
R4
0 7
R4
0
8
C404
C1
1
0
+
E409
+
E4
0
1
R402
C405
10
9
7
6
5
4
3
1
T401
C406
C407
D13
D14
+
E406
+
E407
+
E408
+
E502
+
E503
+
E504
+
DZ
5
0
3
CN25
R6 R9
CN
60
IC406
IC407
C7
D1
R1
R1
3
7
IC2
PC851
IC1
PC817
R2
R126
R125
R123
R122
R119
R118
R117
R1
5
R14
C9
9
C98
C9
7
C96
C95
C9
4
C9
3
C66
D2
0
R1
7
CN17
C
N1
0
CN1
C41
R38
C4
5
C4
4
R1
3
6
R135
R134
R1
0
4
D12
D10
C5
4
+
D8
D9
R57
R20
C2
4
2
C2
4
3
C2
4
4
R8
9
E2
R67
C8
4
C10
C1
1
IC4
C1
2
C38
R3
4
R47
R88
I
C
3
2
R3
9
R3
5
R36
R19
+
DZ6
R37
C46
C5
1
C53
CN19
+ DZ2
+
E27
IC3 PC
8
1
7
IC5
PC817
Q8
R43
R44
R85
R9
1
R9
3
R95
R96
R99
D15
R5
1
+
E410
+
E8
C60
C61
E302
E303
E304
C62
VN1
VP1
U
P
VUB
U+
W
V+
V
W+
U-
VVB
VWB
FO
W-
V-
NV
NW
NU
VNC
CIN
IPM1
+
DZ304
+ DZ303
+ DZ302
C314
C3
1
6
C318
C30
C34
C31
ZR3
ZR4
C82
L1
R11
R1
4
0
CN27
E301
R1
6
8
IGBT1
connect to the DR module
connect to earth
fuse 250V 30A
connect to reactance
290-330VDC standby
210-300VDC running
power supply 208-230V AC connect to the terminal
connect to 4-way valve
when 4-way is on, output 208-230V AC
AC FAN mototr
connect to compressor heater
when heater is on, output 208-230V AC
1 low speed
2 hign speed
3 ground
external drive motor
connect to DC motor
0V AC standby
10~200V AC
’
running
U
V
W
connect to electric expansion valve
6
5
4
3
2
1
+12VDC
+12VDC
+12V DC pulse wave between( +4)-GND
+12V DC pulse wave between( +3)-GND
+12V DC pulse wave between( +2)-GND
+12V DC pulse wave between( +1)-GND
EEPROM Programmer Port
reserve
test port
Connect to PC
communication
V
U
W
connect to PC communication
test port
LED2
（
red
）
&LED3
（
green
）
: status light
combination LED2 and LED3 show errors
（
refer to the attechment Word
）
LED: status light
（
yellow
）
slow flicker ： standby （ 0.5Hz ）
quick flicker
：
error
（
2Hz
）
continuous light: running
internal drive motor
6 5 4 3 1
r
o
ta
te
s
p
e
e
d
fee
d
b
a
c
k
sig
n
a
l
0
-1
5
V sq
u
a
r
e
s
ig
n
a
l
d
ri
v
e
powe
r
vol
tage:
+15VD
C
DC
n
e
g
a
ti
v
e
pol
e
: GN
D
DC p
o
si
ti
v
e
pol
e
P
:
3
1
5
V
D
C
exhaust temp. sensor
pipe temp.sensor& room temp. sensor
TP T4 T3
7 6 5 4 3 2 1
RT
+5V
D
C
RT RT
+5V
D
C
+5V
D
C
CN5/CN4 connect to chassis heater
when heater is on, output 208-230V AC
connect to DC motor
0V AC standby
10~200V AC
’
running
bridge
IGBT
fast recovery diode
(FRD)
IPM for compressor
IPM for DC FAN
reserve
P
N