Quick Start Guide for M991

Quick Start Guide for M991

Brand: Dell

Category: Monitor

Document Type: Quick Start Guide

Language: EN

Uploaded: Sept. 12, 2025, 4:22 a.m.

Manual Publish Date: 2000-10-01

Connecting Your Monitor to a Computer

  1. Turn off your computer and unplug its power cable.
  2. Connect the monitor's blue signal cable to the computer's blue video connector and tighten the screws.
  3. Insert the monitor power cable into the monitor's power port.
  4. Plug both computer and monitor power cables into an electrical outlet.
  5. Turn on your computer and monitor.

Monitor Controls and Indicators

  • Power button: Switches the monitor on/off.
  • OK button: Accesses the Main OSD Menu.
  • Power Indicator: Glows green during normal operation.
  • Brightness hotkeys (Left/Right arrow): Adjusts screen brightness.
  • Contrast hotkeys (Up/Down arrow): Adjusts screen contrast.

Driver Installation

  • Use the monitor CD to install the driver for your operating system (Windows Millennium, 2000, 98, or 95). Follow the on-screen instructions for each OS, which typically involve navigating through Control Panel and the Display Properties to update the driver.

Setting Display Resolution

  • For optimal performance, set the display resolution to 1024 by 768 pixels via the Control Panel and Display settings.

Accessing the User's Guide

  • View the User's Guide online at Dell's support website or from the monitor CD.

Troubleshooting Tips

  • Monitor Has No Power: Check power cable connections, test outlet, ensure power button is pressed, and try a different power cable.
  • No Image Is Displayed: Ensure video connector is seated, computer is on, increase brightness/contrast, check signal cable for damage, and perform a monitor reset.

Troubleshooting and error codes

Symptom Possible Cause Solution
Monitor Has No Power Power cable not fully inserted Ensure the power cable is fully inserted in the monitor's power port and the electrical outlet.
Electrical outlet not working Test the electrical outlet by plugging in a working electrical device such as a lamp.
Power button not pressed Ensure that the power button has been depressed, and wait for the power indicator to light.
Faulty power cable Try another power cable on the monitor. Use the computer's power cable and turn on the monitor with the signal cable disconnected. If the monitor is working correctly, a self-test pattern appears.
No Image Is Displayed on the Monitor Video connector not seated properly Ensure that the video connector is seated properly. Tighten the connector screws securely with your fingers.
Computer is off Ensure that the computer is on.
Brightness/contrast settings too low Increase brightness and contrast controls.
Damaged signal cable or connector Turn off the monitor and unplug the signal cable. Check the cable connector for bent or broken pins. With the signal cable still disconnected, turn on the monitor. If the monitor is working correctly, a self-test pattern appears. Perform a monitor reset or recall.
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