Description
1. Red light - ground wire (GND)
2. Green light - signal negative pole (DATA-)
3. Blue light - signal positive pole (DATA+)
1. The light signal detector has 3 signal lights, red, green and blue
2. If the signal is not connected and the lamp is not controlled, unplug the signal line of the uncontrolled lamp and plug it into the detector.
1. All the red, green and blue lights are on, indicating that the line is good and the signal output is normal
2. A single red light indicates that the ground wire (GND) is short-circuited or open-circuited
3. A single green light indicates that the negative pole (DATA-) of signal 2 is short-circuited or disconnected
4. A single blue light indicates that the positive pole (DATA+) of signal 3 is short-circuited or disconnected
5. When the red and green lights are on, it indicates that the negative pole of the signal and the ground wire are short-circuited
Due to the different signal refresh rates of each lighting console, the line tester will cause the LED indicator to flicker when testing some console signals (it does not affect the use and is the normal state of the line tester.)
