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Video Input Selector

Video Input Selector

14

1

8

16

IC1

CD4017

15

3

13

2

4

7

10

Q4

Q3

Q2

Q1

Vcc

GND

R

Q5

+

R1

1K

LED1

GND

C1

0.1μ

C2

100μ

25V

R2

22K

S1

S2

D1

R3

1K

LED2

R12

1K

R10

1K

T4

BC547

D5

1N4001

R11

1K

LED6

RL4

N/C2

AUDIO-IN 4

T1

BC547

R4

1K

D2

1N4001

R5

1K

LED3

RL1

+12V

RESET

SELECT

+12V

Q0

RL1, RL4 = 12V, 200Ω

2C/O RELAY

N/O2

N/O1

N/C1

N/O1

N/C1

N/O2

N/C2

VIDEO-IN 4

AUDIO-IN 1

VIDEO-IN 1

AUDIO-IN

VIDEO-IN

S1, S2 = PUSH-TO-ON SWITCH

TV SET

Digital Audio / Video Input Selector

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0
0
publish time: 2020-09-24
Circuit Everyday

Need to connect multiple audio and video (AV) sources to your color TV? This is an AV input extender for TVs, it is cheap and easy to build.

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