Midea MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1, MSH-12CRN1, MSH-12HRN1 - Indoor Main PCB; PCB Diagram

8 PCB diagram
8.1 Display board
1 2 3 4 56
A
B
C
D
6
54321
D
C
B
A
Scale Sheet
Size FCSM No. DWG No. Rev
0 of 0
B
LED2
FROM INDOOR PCB
1
2
3
4
5
6
7
CN1
+5
LED3LED1
+5
Q1
9012
R1 102
R11 391 R12 391 R13 391 R14 391
R15 221
104
C1
C3
104
Q2
9013
R5
102
R6
221
R4 221
R2 102
R3 221
R9 221
R8
102
Q4
9012
Q3
9012
R16 391
R17 221
C5
104
10u/16V
E4
REC1
R10
151
47u/16V
E2
R7
221
CLK
DATA
REMOTE
+5V
GND
DIGI
8LED
Dsa
1
Dsb
2
Q0
3
Q1
4
Q2
5
Q3
6
GND
7
CP
8
MR
9
Q4
10
Q5
11
Q6
12
Q7
13
Vcc
14
IC1
74HC164
+5
+5
+5
+5
ddpe
f
g
dig.2
dig.1
c
b
a
C6
102
DISP1
DISP2
TIME Y
DEF R
AUTO G
N
L
1
2
RST
+5V
RST
+5V
LED_ C
DATA
TXD
CLK
DIGI_C
BUZZ
ZER O
RXD
REMOTE
SDA
SCL
+5V
SDA
SCL
+5V
T1_ roo m
+5V
T2_ pip e
T2_pipe
T1_ room
+5V
+5V
SW_KEY
SW_KEY
STEP1
STEP2
STEP3
STEP4
FAN_BACK
INDOORFAN
+5V
+5V
ZERO
B
A
11
+12V
STEP1
STEP2
STEP3
STEP4
BUZZ
INDOORFAN
+12V
IS O+ 12 V
ISOGND
+5V
L
N
INDOORFAN'
ISOGND
IS O+ 12 V
+12V +5V
CHUCHEN
CHUCHEN
INDOORFAN'
SELECT3
SELECT1
TXD
RXD
POWER CIRCUIT
COMMUNICATE CIRCUIT
CORTROL CIRCUIT
SELECT1
SELECT2
+12V
FAN_BACK
+5V
REMOTE
+5V
DIGI_C
DATA
CLK
LED_ C
A
B
IS O+ 12 V
SELECT2
SELECT3
8.2 Indoor main PCB
1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
IC 6
PC817
3
4
DZ2
24V
C13
473
IC 1 0 P C8 5 1
CN10
1
2
CN9
VSS0
1
VDD0
2
P25
3
P26
4
P00
5
P01
6
P02
7
P03
8
P04
9
VSS1
10
P05
11
P50
12
P51
13
P52
14
P53
15
AVDD
16
AVREF
17
AN1 0
18
AN1 1
19
AN1 2
20
AN1 3
21
AN1 4
22
AN1 5
23
AVSS
24
P10
25
P11
26
P30
27
P31
28
P32
29
P33
30
P20
31
VDD1
32
P21
33
P22
34
P23
35
P24
36
Vp p/IC
37
XT2
38
XT1
39
RESET
40
X2
41
X1
42
IC 8
UPD789166
X1
2.5M
R10
105
R11
10K
R12
10K
C11
104
R13 1 03
1
2
3
IC 9
7042
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WC
7
VCC
8
IC11 24C04
C19 1 04
R29
103
R28
103
E11
47uF/16V
R41
8061
C24
223
R42 202
1
2
CN14
T1_ roo m
E16
47uF/16V
R36
8061
C17
223
R27 202
1
2
CN11
T2_ pip e
E10 100uF/16V
SW1
C21
104
R35
103
E7
100uF/16V
C10
223
Q3
9014
R38
123 C22
223
D1 3 1N41 4 8
D1 4 1N41 4 8
R37 123
R39
123
R40 512
C23
223
E8
47uF/16V
IN1
1
IN2
2
IN3
3
IN4
4
IN5
5
IN6
6
IN7
7
VSS
8
VDD
9
OUT7
10
OUT6
OUT5
12
OUT4
13
OUT3
14
OUT2
15
OUT1
16
IC 4
IC/ULN2003
C7
104
1
2
3
4
5
CN3
B1
R8
102
IC 5
PC817
R7
102
R6
202
Q1
9014
R9
512
C25
1.2(1.5)uF/450V
T1T2
G
TR1
BT131
L1
C2
333/250VAC
R12K
R3
561
E2
470uF/25V
R4
11K/2W
DZ1
12V
D5
IN4007
R5
11K/2W
R2 51/1W
1
2
CN9
N
ZR1
14D681K
C5
333/250VAC
1
2
CN2
TRANS_ IN
t
PTC1
82RM
1
2
3
4
5
CN1
FAN_I N
IC 1 PC 81 7
FUSE1
3.15A/250V
C8
104
E5
2200uF/25V
D8
D9
D7
D6
Vin
1
GND
2
Vo ut
3
IC12 7812
E6
1000uF/25V
C9
104
IN4007*4
1
2
3
4
CN5
TRANS_ OUT
14.5VAC 350mA
14.5VAC 200mA
C3
104
E1
2200uF/25V
D3
D4
D2
D1
Vin
1
GND
2
Vo ut
3
IC 2 7 81 2
E3
1000uF/25V
C4
104
IN4007*4
Vin
1
GND
2
Vo ut
3
IC 3 7 80 5
E4
470uF/16V
C6
104
1 2
CN6
R33
103
+5V
R26202
R25
512
R24
681
R19
100K
R20
11K/2W
R21
11K/2W
R22
123
R23
512
R18
5.1K
R17
2K/2W
C15
103
C16
471/250V
C14
103
D1 0
D1 1
E9
100uF/35V
R31
103
+5V
+5V
+5V
Q2
9014
R34512
D1 5
IN4148
C20
103
+5V
1
2
3
CN13
FAN_BACK
DISP LAY
C18
102
R30 101
R14
103
R15
103
R16
103
1
2
3
4
5
6
7
CN7
1 2
CN12
1
2
CN10
L
IN4007
1
CN8
S
IN4007
R32
103
+5V
J2 J3 J1
1
2
3
CN4
287