SJ-WS320T-S
16
2) Main PWB (SJ-WP320T/RM320T/WM322T)
Main Control Board Circuit Diagram
2.Rating of capacitors without appointment are 0.01u/50V, 0.1u/50V.
1.Rating of resistors without appointment are 1/10W, error 5% (J).
3.Parts with parentheses are not in use, but can be inserted.
AC160-288V
50/60Hz
VM 14.5V
DEF_H
0.1u/310V
C1
DB60-302M
SA1
TNR10V511K
VRS2
SGNDSGND SGNDSGND
R room lamp(LED)
SGNDSGND
R Lamp
VM 14.5V
SGND
Defrost heater
Thermal fuse
Vcc
FFM
F fan motor
1
2
3
GND
Vs
5
PH
2
PH
3
PH
4
PH
Electric damper
Sankyo
Plasma cluster
-
+
7G2
XA
1
XA
R-TH
R door SW
Blue (N)
Brown (L)
LED Operation
PWB
Board Inn Terminal
4
5
1
2
6
(CN4)
7
(CN4)
GNDGND
VDD 5V
3
B05B-XASK-1-A(LF)(SN)
CN4
11
9
B20B-PUDSS-1-(LF)(SN)
CN5
10
7
12
14
16
18
5
6
8
2
4
15
B20B-PUDSS-1-(LF)(SN)
CN5
17
20
19
1
VM 14.5V
SGND
Protector
Running Capacitor
Compressor
Start relay
GND
8A/250V
F1 (High)
4A/250V
F3 (Low)
Compressor
Defrost heater
7
10
5
B6P(10-2,4,6,9)-VH(LF)(SN)
CN1
Comp
VDD 5V
VDD 5V
1
2
34
DI156
DB1
TP1
3
B6P(10-2,4,6,9)-VH(LF)(SN)
CN1
TP2
TP3
SGNDSGNDSGNDSGND
43
2 1
PS2561
PC1
2
4E
GND
1
3
5
7
9
Z/C
F/B
Vcc
Vin
C
PGND
VM
14.5V
3.7A 10uH
(L4) TSL1112RA-100M3R7-PF
TP12
SGND
VM 14.5V
SGND
SGND
100u/25V
(C27)
0.1u
(C28)
TP17
VDD 5V
SGNDSGND
LED operation board communication
OPE TXD
OPE RXD
1K
R26
1K
R27
2.7K
R29
TP18
VDD 5V
SGNDSGND SGNDSGND
0.1u/25V
(C30)
Door SW
Door SW input
SGND
1K
R30
2.2K
R31
0.1u/25V
C33
TP19
R_Th
R thermistor
VDD 5V
SGND
4.7K
R34
6.34KF
R35
TP20
SGNDSGND
VM 14.5V
SGND
F_FAN_L
F_FAN_H
VDD 5V
F_FAN_M
VDD 5V VDD 5V
SGNDSGND
Damper_A1
Damper_A2
Damper_B1
Damper_B2
Plasma
VM 14.5V
5V
VDD
SGNDSGND
SGND
Plasma cluster
SGND
Plasma_I
I_MES
F & Defrost thermistor
SGND
SGND
SGND
Vcc
1
IN1
2
IN2
3
IN3
4
IN4
5
OUT1
10
OUT3
8
OUT4
7
GND
6
OUT2
9
LB1948M
IC5
16.9KF
R49
0.1u/25V
C43
0.1u/25V
C44
200mA/32V
F6
KRA101S
Q6
KRC101
Q7
KRA101S
Q8
KRA101S
(Q9)
KRA101S
Q10
TP21
TP23
TP29
TP30TP30
TP32
SGNDSGND
SGNDSGND
DC12V
Electric damper
VM 14.5V
C_Fan_ON
C Fan Motor
I_MES
SGND
SGND
1/2W 240
(R58)
2SD2395
(Q18)
CFM
+
-
SGNDSGND
VDD 5V
I_MES
TP33
TP34
R Lamp
DEF_H
F_FAN_H
F_FAN_M
F_FAN_L
Plasma
C_FAN
Damper_B2
Damper_B1
Damper_A2
Damper_A1
R_Th
Comp
5V
VDD
1SS133
D16
5V
VDD
1K
R61
1K
R64
1SS133
D15
LED lamp2
SGND
47k
R62
5.6k
R63
LED lamp1
47k
R59
5.6k
R60
TP44
TP43
VDD 5V
VDD 5V
Reset
5VVDD
VDD 5V
VDD 5V
VDD 5V
Data_Out
SGND
SGND
SGND
SGND
1
3
2
BD4842G
IC8
0.1u/25V
C57
VDD 5V
VDD 5V
TP47TP47
TP46TP46
TP48TP48
TP49TP49
B4B-PH-K-S
1
Vcc
CN11
RAM Data Check
E8 Emulator
2
3
4
Mode
Data Out
Reset
SGND
SGND
2
Mode
3
Reset
4
Vss
5
4.7K
(R72)
10K
R73
TP45
KRC101S
Q1
TP35
4
2
3
1
APT1221AX
PR1
2200pF/250V
C45
200Ω Fusible resistor
R51
T2T1
G
8A BCR8PM-12LG or TMB166G-L
TRC1
(200Ω) Jumper
R50 Fuse resistor
KRC101S
Q13
TP50
4
23
1
APT1221AX
PR2
(200Ω) Jumper
R78 Fuse resistor
100Ω 1/2W
R52
T2T1
G
TMB166G-L
TRC2
RE-1201
C78
Fan_I
Open
JMP3
Open
JMP4
CE
1
OVD
2
VCC
3
SW
4
VSS
5
FB
6
TB62752
IC6
100u/10V
C48
LQH43CN220K03
L7
LQH43CN220K03
L8
CE
1
OVD
2
VCC
3
SW
4
VSS
5
FB
6
TB62752
IC7
2200pF/250V
C79
100u/10V
(C55)
20
TNR10V511K
VRS3
TP7
TP9
TP36TP37
TP38
TNR10V511K
VRS4
TP52
TP51
Jumper
JMP5
HS29455
HS29457 or HS29455
TNR14V471K
VRS1
910K AX1/2W
R1 (non-flame)
910K AX1/2W
R2 (non-flame)
4700p/250V
C2
EG01C
D4
EG01C
D1
MR4010
IC2
D1NL20U
D2
Open
C16
1/10W/11KF
R14
1/10W/560F
R15
1/4W/1K
R12
0.1u
C15
1/10W 10K
R13
1/10W/2.4KF
R16
REF
A K
TA76431S
IC3
390/0.5W
R81
390/0.5W
R82
390/0.5W
R53
390/0.5W
R54
TP8
RE-1201
C46
Jumper
JMP6
1800u/25V
C17
RL2Z
(D5)
RK46
D6
0.1u
C19
0.1u
C20
1000u/25V
(C18)
0.1u
(C21)
0.1u
(C22)
TP13
TSL1112RA-100M3R7
L5
0.1u/25V
C24
470u/10V
C23
910F
R18
VCC
1
FB
4
GND
FIN
OUT
2
NC
3
STB
5
BD9870FPS
IC4
1u/50V
C58
0.1u/25V
(C59)
100u/10V
C60
0.51 AX1W
R76
0.51 AX1W
R77
4.7K
R75
Motor current detect
1K
R74
0.1u/25V
C54
1.0K
R69
0.01u
C56
100u/10V
C53
0.1u/25V
C52
10K
(R65)
2
1
3
CSTLS8MHz
CF1
10K
(R66)
10K
R67
0.1uF/25V
(C47)
10K
R55
KRC101S
(Q12)
KRA101S
(Q11)
HZ12A2
(ZD2)
0.1u/50V
(C51)
1SS133
(D14)
TP40
TP39
21
B22B-PUDSS-1-(LF)(SN)
(CN5)
0.1u/25V
C37
1K
R39
10K
R40
100u/10V
C38
TP22
(2125)
R37 Chip Jumper
1SS133
D11
0.1u/50V
C36
10K
(R36)
10K
(R41)
100u/25V
C39
3.16KF
R42 (chip)
10KF
R44 (chip)
10KF
R45
SGND
VDD 5V
TP31
16.9KF
R48
4.7K
R47
4.7K
R46
0.01u
(C42)
0.01u
(C41)
F fan motor
0.1u/50V
C40
TP25
TP26
TP27
TP28
0.1u/25V
C35
0.01u
(C32)
Open (10K)
(R33)
100u/10V
C31
KRA101S
Q4
2.7K
R25
KRC101S
Q5
1K
R28
0.01u
C29
VDD 5V
LQH43CN100K03
(L6)
1SS133
D17
TP11
PGND
PSSGND
PSGND
0.1u/25V
(C25)
TP14
BK1608HS220
(R19) Jumper
6.8kF
R17
7.5kF
R83
0.1u/25V
C66
0.1u/25V
C68
0.1u/25V
C69
0.1u/25V
C70
SGNDSGND
VDD 5V
0.1u/25V
C67
100u/10V
C65
100u/10V
C64
0.1u/25V
C80
0.1u/25V
C81
VM 14.5V
SGNDSGND
0.1u
C82
HS3
HS2
12
R57
12
R56
200mA/32V
F9
200mA/32V
F10
2.5A/250V
F2 (High)
VDD 5V
1
B5B-PH-K-S
(CN12)
500mA/32V
(F5)
SCT 250V/500mA
F8
Def_Th
F_Th
1
3
F-TH
DEF-TH
500mA/32V
F7 1608
Common coil
L1 (50mH)
0.1u/310V
C5
56K AX 2W
R9
NTPAD8R0LDNB0
TH1
150uF/450V
C7
TP10
PGND
100p/2KV
C9
560p/2KV
C86
PGND
2W/0.39
R3
1/4W/ 47
R84
HS1
HS29457
AX 1/4W 10k
R4
100p/50V
C10
PSSGND
PSGND
PSGND
47u/50V
C13
0.1u
C12
HZ9C1
ZD1
AX 1/2W 10
R8
D1NL20U
D3
Jumper
R7
AX 1/4W 10kF
R6
1000p/50V
C11
PSSGND
PSSGND
1608
(C87)
1000p/50V
C14
1608
(C88)
AX 1/4W 27KF
R10
1/4W 2.7K
R11
AX 1/4W 8.45kF
R5
PSGND
SGND SGND
PSSGND
0.1uF/630V
C85
SGND
10000pF/250V
C76
10000pF/250V
C77
10000pF/250V
C83
10000pF/250V
C84
SGND
PGND
Jumper(4.7K)
R32
200Ω 1/2W Fusible resistor
R80
4700p/250V
C3
4700p/250V
C4
470p/250V
(C89)
RB160SS-40
D7
BK1608HS800
FB5
SGND
LED lamp2
SGND
SGND
1uF/50V
C50
SGND
SGND
SGND
LED lamp1
SGND SGND
BK1608HS800
FB3
1uF/50V
C49
RB160M-60
D12
RB160M-60
D13
0.1uF/50V
C90
0.1uF/50V
C91
BK1608HS800
FB4
BK1608HS800
FB2
BK1608HS800
FB1
SGND
6.34KF
(R43) (chip)
TP53
TP54
TP55
TP56
1/2W 3
R38 (chip)
TP57
0.012uF/2KV
C8
0.01u
(C104)
0.01u
(C103)
0.01u
C34
DC12V
TP24TP24
Fan_I
Plasma_I
Door SW
TXD
RXD
SGNDSGND
VDD 5V
TP41
Model SW/Defrost SW
Open
JMP2
10K
R71
10K
(R70)
Def_Th
F_Th
SGND
0.01u
C107
0.01u
C106
0.01u
C108
0.01u
C109
0.01u
C110
0.01u
C112
Reset
3
Xout
4
Vss
5
Xin
6
Vcc
7
AN7
32
Vref
1
Mode
2
TXD
8
P35
9
P22
12
P21
13
P20
14
P31
15
P45
16
P17
17
P16
18
P15
19
P14
20
P13
21
AN10
22
AN9
23
AN8
24
AN0
25
AN1
26
AN2
27
AN3
28
AN4
29
RXD1
30
TXD1
31
TXD2
10
RXD2
11
R5F21336ANFP
IC1
TP42
0.01u
C111
1N4005SG
D8
1N4005SG
D9
1N4005SG
D10
VM 14.5V
1M
(R68)
Mode
SGND
0.01u
C101
47
R79
5 or 7 LED
R Room LED
5 or 7 LED
R Room LED
(C fan motor) not mount
(F door SW)
not mount
6
5
4
2
1
8
9
10
11
TRANS 1
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