Monitor TroubleshootingA step-by-Step Guide

For getting your monitor working

The Monitor is BlackThere are many reasons why a computer monitor could go black. I’m here to walk you through a step by step diagnostic and resolution.

How to use this guide:• This step-by-step guide walks you through different

things that could be wrong with your monitor. • Click Slide Show view.• Answer the questions and you can fix your

monitor yourself in no time. • Click through the slides as you work on fixing the

problem.(If it’s easier, exit Slide Show view at this point)

Check to see if the monitor getting power.

• Is the computer turned on? There is a light on the CPU. If the computer is on, it will be lit.

• If no lights appear on the front of the monitor at all, it is not getting any power from the power source. Check to see if ALL plugs are secure

• Power cord from the computer to the power strip.• Power strip to the wall socket.• There is a light on the strip. If the strip is on, the

indictor light will be on.

Check to see if the monitor getting a signal from the computer.

• There is a light on the monitor. If the monitor is on, it will be lit. If it is turned on, check the contrast and brightness buttons to see if they have been tampered with.

• A green light on the front of the monitor would indicate that it is getting a signal from the computer.

• An orange light would indicate there is not signal from the computer. Make sure the computer is on and you see lights on the front of it. Check the cable that runs from the monitor to the computer to see if it has worked loose.

Check to see if the brightness has been turned entirely down.

• Make sure you check the brightness and contrast buttons or settings on the monitor.

• Check to see if the computer in Power Save or Sleep mode.

• Move the mouse or press any key on the keyboard to see if the computer will "wake-up."

Verify that all cables and cords leading in to and out of your computer to insure they are all in tight and not disconnected.

• Secure the following to the computer:• Monitor• Mouse• Keyboard• Printer• Network cable to computer and wall (Blue)

The screen is not synchronized

• Check to make sure the signal cable is firmly connected in the socket.

• Check that the output level matches the input level of your computer.

• Make sure the signal timing of the computer system is within the specification of the monitor.

The screen is too bright or too dark

• Check if the Brightness or contrast control is at the appropriate position, not at the maximum or minimum.

• Check if the specified voltage is applied• Check if the signal timing of the computer system

is within the specification of the monitor.• Especially, check the horizontal frequency.

The screen is shaking

• Move all objects that emit a magnetic field, such as a motor or transformer, away from the monitor.

• Check if the specified voltage is applied.• Check if the signal timing of the computer system

is within the specification of the monitor.

Keyboard Troubleshooting