Midea MCH2U-18PHH2 Service Manual page 28

IPM board of MCH2U-18PHH2, MCH3U-27PHH2
CAUTION HIGH VOLTAGE
Online writing
Compressor drive EEPROM
online writing
Compressor drive Program
Debug
C70
R 108
R90
IC7
3 .3V→1.8V
DC Fan Driver IPM module
R11_1 R10_1
BR1
R11_2
R10_2
R11_3 R10_3
R15
D1
+ DZ1
D7
G
D Z7
+ I C1
S
R13 R 7
IGBT1
C102
E27
C8
R 26
J13
R27
C17
IC2
R12
IC11 2 4LC08 IC10 24LC256 D12
R19 C 14
R30
R28
IC 18
D14
D13 R 166
R40 C 25 R125
R78
R57
R159
R70
R 156
R36
R165
R17
C 29
R 146
R145
J12 C82 R162 R 147
R141
C 10 R 148
C34 R64 C 38 C45 R 81
R 21 R 144
6 4 R65 49 C30 C46 R 123
R 20
C28
R53
IC14
R54
C43 R1 19
R121
R 120
16
I C17
33
C47
R98
R82
IPM OCP
17
C 67 Ti me
R86 C64
R1 02
C72 Co nstant
R88
C99
R1 06 R1 11
R91
R1 24 R1 05
R 93 C73 C 77
C76
C 74 R99 R73
R 84
R 95 C101 C 100
R 96
Q2
R 74 R 77
C23
IPM1
R 122 DZ10
R 76
IC19
R1 17 C63 C31
R107 C98
E 12 7 805
R 112
C 22
DZ9
C32
1
DZ8 C97
5V→3.3V
I C9
E14
E13
C 33
C50 C71 R110
C96
C4
C95 DZ5
C49
C 60
R103
C57 C65
C 7 C 12
17122000018251
connect to the main board no use
17122000018251
ZR3 ZR2
C3
D20
K
R18 R16
C1
D21
R42
D22
J 4
R83_1
BK
J3
W
CN7
R80
RD
R75
C41
V
CN9
BL
U
CN10
C81
DZ6
E26
IC6 R 1_4
7815
EU-KFR80W/BP3(IR311+PS21997+
SIM6822+LOCK).D.13.WP2-1
CTI 600V
connect to the compressor
10-200VAC (running)
0VAC (standby)
28
CN4(L)-CN5(N)
power supply
fuse1 T/3.15A
CN11
L
J1 J 2
F US E1
T /3 .15A
250 VAC
J5
ZR1
PTC2
E6
J 7 J6
BR2
CN_Reactor
CN 16
E5
R5
E 25
R52
R 3
R 2
D Z4
J8
R22
J9
+
4 +
1 2
I C4 C86
R 35
R32
R59
E3
+
E2
T1 +
D11
D 3
E4
E 11
+
E9
C85
IC21
7 805
+
BK E 15
+
E1
RD
R50
IC8
R47
BL
J2
R43
R62
Q1
C40
IC13
C35
C26
IC12
F_DC Fan
R61
R 1
U
R1_3 R1_2
R1 _1
V
W
DC Fan fuse for DC FAN
T/3.15A
PTC1
no use
L1
connect to the Reactor
R9
C5
D6
CY1
D 9
C13
E8
C 11
no use
CN13
CN1
TXD
5
RXD
4
GND For +12V
3
+5V DC
2
+12V DC
1
Pi n1
connect to the DC FAN motor
10-200VAC (running)
0VAC (standby)