Velleman-projects K8035 Assembly instructions Manual do Utilizador descarregar pdf (Página 14)

14

21. Schematic diagram.

Schematic diagram

DY1

a

14

b

13

c

11

d

5

e

4

f

2

g

1

DP

10

A

3

A

12

DY4

SA39-11EWA

R1....R8: 150

+5V

DY4

DY3

DY2

DY1

A

B

C

D

E

F

T1

BC557

T2

BC557

T3

BC557

BC557

R12

10K

R1

R2

R3

R4

R5

R6

R7

R8

R9

10K

R10

10K

R11

10K

SW1

SELECT

SW2

"DOWN"

SW3

"UP"

SW4

"ENTER"

GND

G

DP

SW4

SW3

SW2

SW1

11

b

DP

SA39-11EWA

DY3

2

f

e

1

10

g

5

4

d

c

3

14

13

a

AA

11

b

DP

SA39-11EWA

DY2

2

f

e

1

10

g

5

4

d

c

3

14

13

a

12

AA

11

b

DP

SA39-11EWA

2

f

e

1

10

g

5

4

d

c

3

14

13

a

12

AA

12

1 2 ... 9 10 11 12 13 14 15 16

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