Iac

5V

12V

U4 7805

J1

R

CLK

1

VO

3

5V

GND

VI

SIL-100-02

7

DC

C3

C6

470uF

100nF

C5 C7

100uF

100nF

2

C2

10k

3

Q

1 2

R5

2

4

VCC

8

U3

5

CV

RV2

10nF

100k

6

TH

1

1

TR

GND

2

3

555

C4

12v

10uF

BR1

R6

C10

C11

470uF

100nF

2A

5V

SW1 RUN/PAUSE

R7

5V

5V

4k7

C8

C9

5V

SW2

4k7

HALF/FULL

R8

12 100nF

SW3

4k7

D1

R2

3 11

5V

LED-RED

5V

K

1

A

15 16

RV1 C1 3

2

220

CLK

10 20 19 17 18

3n3

10k

R1 22k

VCC ENABLE RESET HALF/FULL CW/CCW CLOCK

A B C D INH1 INH2

HOME SENS1 SENS2

CONTROL VREF OSC

GND 2

SYNC

4 6 7 9 5 8

5 7 10 12 6 11

14 13

1 15

100nF

9

4

IN1 IN2 IN3 IN4 ENA ENB

VCC

VS

SENSA SENSB

OUT1 OUT2 OUT3 OUT4

2 3 13 14

GND 8

1

U2

+88.8

DIRECTION 5V

5V

5V

U1

L298

R4 R3 L297

0R5 2W

BR2 2A

IAC