Monitor screen always showing no signal even everything connected

Asked By 30 points N/A Posted on -


I bought a new Samsung S19D300NY 18.5" LED Monitor. Few days ago I can work with it with no issues. This morning when I turned it on it is just showing “check signal cable.” I can see my desktop light indicators were steady and I can hear Windows chimes. Meaning to say the computer successfully booted. What could be causing this problem? Is there any way that I can do to resolve this issue? Can you provide me step-by-step resolution for this? Please help me. Thank you!

Answered By 5 points N/A #174089

Monitor screen always showing no signal even everything connected


Happy to support you!

Before seeking for technical assistance, try following these steps, 

  • First verify the proper connection of the power cable & ROM and check if the problem is solved.
  • Then, scan the system for viral attacks.
  • Try resetting BIOS settings to default.
  • Connect another monitor if available. If the issue persists, there can be a problem in power, system board or display.
  • If the other monitor did not have the issue, there may be a problem with the capacitors. So, try adjusting the brightness to the minimum level possible. If this also brings no result, check if the capacitors are having bulging tops instead of being flat where you would have to go for a replacement.
  • Further you can try replacing the inverter of the monitor.

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