SJ-WS320T-S
15
3. CIRCUIT DIAGRAM
1) Main PWB (SJ-WS320T/RP320T)
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.
VM 14.5V
4
2
3
1
APT1221AX
PR1
Protector
TNR14V471K
VRS1
910K AX1/2W
R1 (non-flame)
910K AX1/2W
R2 (non-flame)
VDD 5V
SGND
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
2.7K
R21
1K
R20
SGNDSGND
1K
R22
VDD 5V
SGNDSGND
SGNDSGND
DC12V
Plasma
VM 14.5V
5V
VDD
SGND
SGND
SGND
R_Th
R thermistor
Plasma cluster
VDD 5V
SGND
Plasma_I
VDD 5V
SGNDSGND
SGNDSGND SGNDSGND
LED operation board communication
OPE TXD
OPE RXD
VDD 5V
Inverter control communication
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
Door SW
Door SW input
INV RXD
INV TXD
I_MES
F fan motor
F & Defrost thermistor
Defrost heater
Thermal fuse
CFM
+
-
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
Inverter PWB
LED Operation
PWB
Inverter PWB
FPWB-A734CBKZ
GND
Board Inn Terminal
3
2
4
5
SGND
1
2
6
(CN4)
7
(CN4)
GNDGND
VDD 5V
SGND
SGND
SGND
SGND
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
20
21
B22B-PUDSS-1-(LF)(SN)
(CN5)
15
B20B-PUDSS-1-(LF)(SN)
CN5
17
20
19
1
5
B4P(7-2,4,6)-VH(LF)(SN)
CN1
7
3
4
6
2
Mode
3
Reset
4
Vss
5
AC160-288V
50/60Hz
Blue (N)
Brown (L)
VDD 5V
REF
A K
TA76431S
IC3
SGNDSGND
SGNDSGND
43
2 1
PS2561
PC1
PSGNDPSGND
2
4E
GND
1
3
5
7
9
Z/C
F/B
Vcc
Vin
C
D1NL20U
D3
IC2
VM
14.5V
SGNDSGND SGNDSGND
SGNDSGND
SGNDSGND
SGND
SGND
Electric damper
Fan_I
VDD 5V
I_MES
Motor current detect
I_MES
SGND
SGND
Jumper
JMP5
Z80 1608 chip
FB2
Vcc
1
IN1
2
IN2
3
IN3
4
IN4
5
OUT1
10
OUT3
8
OUT4
7
GND
6
OUT2
9
LB1948M
IC5
CE
1
OVD
2
VCC
3
SW
4
VSS
5
FB
6
TB62752
IC7
T2T1
G
8A BCR8PM-12LG
TRC1
HS2
HS29457
HZ9C1
ZD1
5A/250V
F2 (High)
MR4010
AX 1/2W 10
R8
1/4W 2.7K
R11
1/4W/1K
R12
910F
R18
4.7K
R23
2.7K
R24
2.7K
R25
1K
R26
1K
R27
1K
R28
2.7K
R29
1K
R30
2.2K
R31
4.7K
R34
6.34KF
R35
10K
(R36)
(2125)
R37 Chip Jumper
1K
R39
10K
R40
10K
(R41)
3.16KF
R42 (chip)
10KF
R44 (chip)
10KF
R45
4.7K
R46
4.7K
R47
16.9KF
R48
16.9KF
R49
(200Ω) Jumper
(R50) Fuse resistor
200Ω Fusible resistor
R51
390/0.5W
R53
390/0.5W
R54
4.7K
(R72)
10K
R73
1K
R74
4.7K
R75
0.51 AX1W
R76
0.51 AX1W
R77
1SS133
D11
0.1u
C12
47u/50V
C13
0.1u
C15
1800u/25V
C17
0.1u
C19
0.1u
C20
0.01u
C26
0.01u
C29
100u/10V
C31
0.1u/25V
C33
0.01u
(C34)
0.1u/25V
C35
0.1u/25V
C37
100u/25V
C39
0.1u/50V
C40
0.01u
(C41)
0.01u
(C42)
0.1u/25V
C43
0.1u/25V
C44
2200pF/250V
C45
Spark Killer RE-1201
C46
1u/50V
C58
0.1u/25V
(C59)
100u/10V
C60
200mA/32V
F6
KRA101S
Q2
KRA101S
Q3
KRA101S
Q4
KRC101S
Q5
KRA101S
Q6
KRC101
Q7
KRA101S
Q8
KRA101S
(Q9)
KRA101S
Q10
PGND
PGND
PSGND
PSGND
3
B4P(7-2,4,6)-VH(LF)(SN)
CN1
TP1
TP2
TP3
1
B4P(6-2,5)-VH(LF)(SN)
CN2
TP4
TP5
TP6
TNR10V511K
VRS3
TP7
TP8
TP9
TP10
TP12
TP13
TP15
TP16
TP17
TP18
TP19
TP20
TP21
TP22
TP23
TP25
TP26
TP30TP27
TP28
TP29
TP30TP30
TP31
TP32
TP33
TP34
TP35
TP36TP37
TP38
TP39
TP40
TP45
1000u/25V
(C18)
RL2Z
(D5)
RK46
D6
SGND
SGND
2SD2395
(Q18)
HZ12A2
(ZD2)
0.1u/50V
(C51)
1SS133
(D14)
1/10W 11KF
R14
1/10W 10K
R13
1/10W 560F
R15
1/10W 2.4KF
R16
470u/10V
C23
Jumper
JMP6
6.8kF
R17
7.5kF
R83
VM 14.5V
0.1u
C79
0.1u
C81
100u
C65
100u
C64
0.1u/25V
C66
0.1u/25V
C67
0.1u/25V
C68
0.1u/25V
C69
VDD 5V
0.1u/25V
C70
0.1u/25V
C80
VM 14.5V
SGNDSGND
100u/25V
(C27)
0.1u
(C28)
0.1u
C78
1
B5B-PH-K-S
(CN12)
1
03P-SDN
CN3
32V/500mA
(F5)
12
R56
SGND
SGND
12
R57
200mA/32V
F9
200mA/32V
F10
VDD 5V
SCT 250V/500mA
F8
Def_Th
F_Th
DEF-TH
F-TH
1
3
6.4KF
(R43) (chip)
500mA/32V
F7 1608
0.1u/310V
C1
8A/250V
F1 (High)
TNR10V511K
VRS2
2A/250V
F4(Low)
DB60-302M
SA1
HF Common Coil
L9 (30uH)
4700p/250V
C2
4700p/250V
C3
4700p/250V
C89
0.1u/310V
(C5)
0.1u/310V
C82
10000p/250V
C95
10000p/250V
C75
10000p/250V
C96
4700p/250V
C4
10000p/250V
C97
LF Common Coil
L2 (10mH)
0.1u/310V
(C6)
Common Coil
L1 (10mH)
Common Coil
L3 (50mH)
` `
+-
DI156
DB1
2.5A/250V
F3(High)
NTPAD8R0LDNB0
TH1
150uF/450V
C7
0.1u/630V
C85
56K AX 2W
R9
PGND
2W/0.39
R3
EG01C
D4
EG01C
D1
HS1
29457
PSSGND
AX 1/4W 5.6k
R5
AX 1/4W 10k
R4
100p/50V
C10
Jumper
R7
D1NL20U
D2
PSSGND
PSSGND
1608
(C87)
AX 1/4W 10kF
R6
1000p/50V
C11
PSSGNDPSSGND
AX 1/4W 27KF
R10
1000p/50V
C14
1608
(C88)
Open
(C16)
6
5
4
2
1
8
9
10
11
EERL28
TRANS 1
10uH 3.7A
(L4)
0.1u
C21
TP11
PGND
PSSGND
PSGND
10000pF/250V
C76
10000pF/250V
C77
SGND
PGND
10000pF/250V
(C83)
10000pF/250V
(C84)
VCC
1
FB
4
GND
FIN
OUT
2
NC
3
STB
5
BD9870FPS
IC4
RB160SS-40
D7
10uH chip
(L6)
10uH 3.7A
L5
5Va
DEF_H
Defrost heater
SGND
KRC101S
Q1
5Va
10uH 3.7A
L11
5V MPU
VDD 5V
TP14
SGNDSGND
100u/10V
C98
Jumper
R32
Open
(R33)
0.1u/25V
C30
1/2W 3
R38 (chip)
100u/10V
C38
0.1u/50V
C36
SGND
SGND
SGND
SGND
SGND
SGND
100Ω 0.5W
R52
R Lamp
VDD 5V
5VVDD
VDD 5V
VDD 5V
Data_Out
DEF_H
INV TXD
F_FAN_H
F_FAN_L
Plasma
C_FAN
Damper_B2
Damper_B1
Damper_A2
Damper_A1
R_Th
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
5V
VDD
1SS133
D16
5V
VDD
SGND
SGND
SGND
1
3
2
BD4842G
IC8
1K
R61
1K
R64
10K
(R65)
10K
(R66)
10K
R67
1SS133
D15
0.1u/25V
C54
100u
(C55)
0.1u/25V
C57
0.01u
C56
LED lamp2
47k
R62
5.6k
R63
LED lamp1
47k
R59
5.6k
R60
TP44
TP43
1.0K
R69
Reset
Mode
5V MPU
SGND
0.01u
C101
2
1
3
CSTLS8MHz
CF1
1M
(R68)
100u
C53
SGND
SGND
F_FAN_M
0.01u
C102
SGND
SGND
0.01u
C105
5V MPU
INV RXD
VDD 5V
10K
(R70)
10K
R71
TP41
SGND
OPE TXD
OPE RXD
Door SW
Fan_I
Plasma_I
Def_Th
F_Th DC12V
VM 14.5V
1N4005SG
D8
1N4005SG
D9
1N4005SG
D10
TP24TP24
Model SW/Defrost SW
Open
JMP2
TP42
SGND
0.01u
C107
0.01u
C106
0.01u
C108
0.01u
C109
0.01u
C110
0.01u
C112
0.01u
C111
Open
(R87)
VM 14.5V
C_Fan_ON
C Fan Motor
SGND
KRA101S
(Q11)
KRC101S
(Q12)
1/2W 240
(R58)
500mA/32V
(F11)
Open
(JMP3)
Open
(JMP4)
R Lamp
1K
R86
R room lamp(LED)
CE
1
OVD
2
VCC
3
SW
4
VSS
5
FB
6
TB62752
IC6
100u/10V
C48
0.1uF/25V
C47
SGND
SGND
0.01u
C93
10K
R85
VDD 5V
SGND
0.01u
C92
10K
R55
22uH
L7
LED lamp1
RB160M-60
D12
SGND
0.1uF/50V
C90
1uF/50V 2012
C49
Z80 1608 chip
FB1
Z80
FB3
Z80
FB5
Z80
R19
TP53
TP54
22uH
L8
Z80
FB4
LED lamp2
RB160M-60
D13
SGND
0.1uF/50V
C91
1uF/50V 2012
C50
Core
Core
TP55
TP56
TP57
0.1u/25V
C25
0.1u/25V
C24
47 xW
R84
0.01u
(C104)
0.01u
(C103)
0.1u
C22
0.1u/25V
C52
0.01u
C94
0.1u
C99
560p/1KV
C86
100p/2KV
C9
1SS133
D17
10uH 650mA
L10
1200p/2kV
C8
0.01u
C32
(C fan motor) not mount
(F door SW)
not mount
7LED
R Room LED
7LED
R Room LED
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