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1

2

3

4

5

6

D21

A1 CON1 1 2 1 D
F1

1
C1 R15

1
HL1

2
R12

2

R13

1

1

2

2

2

1

1

2

2
BG1 L2 C4

3

D2 PL1A

A5
R16 L3 R148 C59 D18 T1H 2

CY1 R11 4

4

4

3

3

GND HL2 CY2 3 4 3

4

52 2
C5 C6

A3 3 5 1 2

3 1

22 3

L4

D3

400V
R24

1

R100 R101 2 L12

5

12VA 1
EC24

12VB
R98 R99 R140

HL3

D

21

1 4

4

3

3 1 A2

2

2

R20 R19

S D

A6

Q2

C7

C8

C44

EC2 R25

EC22 C34 D14A

EC23

1
Q1

R77 R82 L8 C20 R83 P2 IC3

2

R7 R6

R8

R9

R17

2

2

G
Q12

1

R4

2

D1 12 R10

1

R14 C2 C3

5 VCC GD 8 7 6 5
R28 3 R29 C11 R21B R30 R21A R31 R2 R18 Z2 R26 T1D EC9 D14B EC11 R95

3
EC19 Z10

IC5

INV COMP

2 3

2 3

23

1

3

15VCC

EC1

R21E R21C R21D

3

G
R21F

+5VSB

R86 R21G

5

5VSB

R89

1

1
R90 R85

3

C9

R1

C10

R27

4

2

MULT GND CS ZCD

PL1B

5

F3

A4 GND
R87A

C 15VCC
Q3 R38 D8 C22 R37

2

C37 L9 D16

C 24V 3
EC20 R120 R143 R144 R145 R118 C31 R119 R142 R112 R113 R114 R115

8D 5 3
R53 R47 R48 2 C18 T1A P1

GND 5 1
R54A L7 D9 R54F R54E

R87B

2

R39 T1B

3
D6B

T2A

5

5
EC14

8D 2 2
Z6 D6A

F2

1

A K

2

F1
C24 R67 R64 R33

VREF 2
R59 R63

IC2

R36

R41

R49

EC13

2 A17 3 A17

KA

21

C

E

R57

2 EC6 3

1 2

1

1

OVP

B

1 5

C E

1

1
L5

D4 21

LIMIT VREF CSCS+ EA+ EACOMP CT
C25

SHUT VCC OUTA VC GND OUTB SYNC RT

16 15 14 13 C43 12 11 10 9
R70 R46 R42 R34 Q5 Q6

A8 1
R71

1

2

12

R45

3

2

2

A3
IC1

2

R130

R131

VCC K1 VCC R132
R135 D20

R65

B

E C

R58

C50

1

R32 EC7

R1164

2

A9
R35 EC8

2

Q4

D5

A14 Q7

R68

3

Q8 G A11

4

3

3

1

2 3

R74 R44 R43

R123 R124 C45 R97 D11B EC12 L10

2

R66

R40

C14 C13

15VCC

T2C

A16 20V 3 2
EC10 R96

R147 R146 R117

3 2

1

5 VREF 6 7

5

A18
C29

R136

Q14

C23

A101
R72 Z4 T2D

5
R141

1
C48

EC21

2

GND OUT COMVCC RT FB
C49

6 5 4
R137

1

G 1 2

A13 A12
R69 C15 C16

2 3
Q9 D10 C19

2 3

8

1

G 3 2

B

F3
R133

R138

B
C38 CON4 CON5 D17

R88A R88B

2

R139A

A10 R52
T3A

5 2

1

R139C R139B R139D

5

L6

Z1

C17

3 R50

R51

R56

T3C

EC15

EC16

2
C56 C54 R129 R95B R103 R80

G

C55

12VA 24V
R111 CY3

A15
R84

OVP A9
R107 Z8 R108 Z7 R121 C46

20V SGND
C57

3

1

Q16

2 G

18V
C58 R125

F1
R79 C40 R81

K1
P3

12VB

31

F2 23 1 1
IC4

3

GND
CY4 CY5

23

C51 C53

1

G

1
R126

A

C52

2

IC6

R109

R110

A100
C28 R76 P4 R78 C33 T3D D11A EC17

5

12VA

2

Q13

3

24V 12VB
R127

R75

Q10

R122

STB

3

5VSB

3

2 Q15

A17 A17

+5V

18V 24V

24V 24V 24V 24V A17 A17 A17 A17

1 2 3 4 5 6 7 8

CON3

18V 18V SGND SGND

1 2 3 4

STB 5VSB +5V +5V SGND SGND SGND 12V 12V

1 2 3 4 5 6 7 8 9

A

1

2

A15
R128

SGND

A17

SGND

2 3

1

2

3

4

5

6