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[ The PC Guide | Troubleshooting and Repair Guide | The Troubleshooting Expert | Troubleshooting Specific Components | Troubleshooting Monitors | Failure or Improper Operation ]

There is a suspected general failure of the monitor, which does not appear to have any power

Explanation: The monitor appears not to be working at all. There are no indications that the monitor has any power.

Diagnosis: Usually this is bad news, of course, though sometimes there is a simple explanation for why a monitor would not have power.


  • Make sure that the electrical outlet is working, by trying another appliance in the socket and seeing if it works. If the socket does not work, you will need to consult an electrician to have it fixed.
  • Check any power protection devices that the monitor might be plugged into, to ensure that they are working. Troubleshoot any problems here.
  • Make sure the power cable is connected securely and is undamaged. Try replacing the cable with another one.
  • If the monitor has a switch to select between 110 volt and 220 volt operation, make sure it is set to the correct value. This switch will normally be on the outside of the monitor at the back, near where the power cord connects.
  • Check for a blown fuse. Some monitors have these and some do not. The fuse may appear as a round black knob on the back of the monitor that can be unscrewed and removed. If the fine wire in the fuse is broken or burned out, the fuse has blown and should be replaced with another identical fuse.

Warning: A fuse that blows once on a circuit or appliance can be a fluke or something caused by a power spike or surge. A fuse that blows more than once usually indicates some sort of problem either with the device or the electrical circuit. At this point consulting a professional would make sense.

  • If you cannot get power to the monitor, you will need to have it repaired. Monitor repairs of this type will often be successful, because the problem is likely to be a blown component that can be replaced and not something serious like the CRT itself.

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