This Circuit is a Composite Video to analog XYZ signal converter which take s-video signal and display it on an analog Oscilloscope CRT display. It uses IC LM1881 which is a composite video sync separator.
Parts List:
IC LM1881 (SMD or THT)
IC AD8032 (SMD or THT)
Transistor 2N2222 (4pcs)
Transistor 2N3906 (2pcs)
Diode 1N4148 (2pcs)
Potentiometer WH148 1K
Potentiometer WH148 10K
Capacitor 680uF 16V
Capacitor 100nF (3pcs)
Capacitor 10nF
Capacitor 22nF
Resistor 180 ohm
Resistor 680 ohm
Resistor 1k
Resistor 2.2k (3pcs)
Resistor 3.3k (3pcs)
Resistor 6.8k (2pcs)
Resistor 4.7k
Resistor 5.6k
Resistor 68k (2pcs)
Resistor 680k
9V Battery
9V Battery cable/holder
IC Socket 8dip (2pcs)
ON/OFF Slide Switch
Knob for Potentiometers (2pcs)
BNC Connector (4pcs)
BNC Cables (4pcs)
HDMI to AV Converter (optional)
Circuit :
NOTE#1: If you want to use different op-amp (instead of AD8032) it must be rail to rail op-amp otherwise the circuit not going to work properly.
NOTE#2: You have to set both channels on your analog oscilloscope on 0.2V/Division and AC coupling
You can download the Gerber file of this PCB from PCBWay here:
https://www.pcbway.com/project/shareproject/Video_on_Oscilloscope_3b6c3d70.html
The two holes near the battery could be use to holding the battery in place by a piece of wire !
Video:
.png "Send Me Gift!")