Check if the pins are damaged or have foreign objects. If they do, replace the cable with an authentic cable.
Causes and Symptoms
- The signal cable connection condition is poor.
- There might be a problem in the PC signal.
Try this
Is the cable connected properly?
➔ Check if the pins are damaged or have foreign objects. If they do, replace the cable with an authentic cable.
Did you use the cable that came with the monitor?
Is there a vertical line?
➔ Remove the monitor signal cable.
If [No signal] screen shows vertical lines in the same location, then it requires accurate inspection by an LG Electronics technician.
Are there many vertical lines like rainbows?
➔ Remove the monitor signal cable and connect it again.
If you still experience the same issue after reconnecting the cable, have your monitor checked by an LG Electronics service technician.
Is there a vertical line as shown in the below figure?
➔ In this case, the LCD panel is damaged due to external physical impacts, service inspection is required.
This guide was created for all models, so the images or content may be different from your product.
In case the issue is not resolved, please contact the LG support representative at this number : 800 54
