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TV Pattern Generator

TV Pattern Generator

1

2

N1

3

4

N2

5

6

N3

7

14

10

11

N4

9

8

N5

+

13

12

N5

VR2

47K

D2

D1

VR1

220K

C1

0.001μ

C2

0.004μ

VR3

10K

C7

0.1μ

C3

0.0047μ

D4

VR4

10K

R1

82K

R2

56K

T1

BC547

R3

10K

R4

1K

C5

0.01μ

VIDEO

OUTPUT

R5

100K

C6

10μ

25V

R6

10K

AUDIO

OUTPUT

GND

+12V

D1 - D5 = 1N4148

D1

STARTING

END

C4

0.001μ

D5

VR5

5K

WIDTH AND

MUNBER OF LINE

IC1 (N1-N6) = CD40106

TV Pattern Generator

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publish time: 2020-09-24
Circuit Everyday

This single IC TV pattern generator can be used to find faults in TV sets. This circuit can be used to calibrate the timing circuit of the TV. The stripes produced by the pattern generator on the vertical TV screen can help you align the receiver's vertical scan synchronization circuit.

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