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i have problem with my micro controller (PIC)  board for control of camera (turn left and right). in this circuit used 7805 for making 5voltage for all component of circuit and camera (cctv work with 5v). but when turning on this circuit , av receiver can't  receive signal from camera. but when i disconnected this camera from circuit and plug in to different 5v power supply work very well and i have good signal in AV receiver.

i guess problem is in power supply (maybe noise ).

have you any idea for this circuit that work with one 9-12v adapter in input voltage but have two apart 5v in circuit?
that i use micro controller board and camera separately.

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