3
www.dell.com
Troubleshooting
Poor Picture Images
No video/LED off (no power)
• Ensure a tight fit to both the monitor receptacle and the electrical outlet.
• Test electrical outlet by plugging in working electrical device such as a
lamp.
• Make sure that the power button has been depressed, and wait for the
power LED to light on.
• Try another power cord on the monitor. Use the power cord from the
system and power the monitor on with the signal cable disconnected. If
monitor is working correctly, a self test message should appear.
No video/LED on
• Ensure that the video connector is seated properly. Tighten screws securely
with fingers.
• Ensure that the computer is switched on.
• Increase brightness and contrast controls.
• Turn the monitor off and unplug the signal cable(s). Check for bent or broken
pins.
• With the signal cable(s) still disconnected, turn the monitor on. If the monitor
is working correctly, a self test pattern should appear.
• Perform monitor reset or recall.
For more information refer to Troubleshooting section in User’s Guide on your CD.
Safety Instructions
Please read and follow these instructions when connecting and using your computer monitor:
• To help avoid damaging your computer, be sure the voltage selection switch on the power supply is set to match the alternating current (AC) power
available at your location:
• 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such as Japan, South Korea, and Taiwan.
• 230 V/50 Hz in most of Europe, the middle East, and the Far East. Also be sure your monitor is electrically rated to operate with the AC power available
in your location.
• Never insert anything metallic into the monitor openings. Doing so may create the danger of electric shock.
• To avoid electric shock, never touch the inside of the monitor. Only a qualified technician should open the monitor’s case.
• Never use your monitor if the power cord has been damaged. Do not allow anything to rest on the power cord, and keep the cord away from where
people could trip over it.
• Be sure to hold the plug, not the cord, when disconnecting the monitor from an electric socket.
• Openings in the monitor cabinet are provided for ventilation. To prevent overheating, these openings should not be blocked or covered. Also, avoid using
the monitor on a bed, sofa, rug, or other soft surface. Doing so may block the ventilation openings in the bottom of the cabinet. If you put the monitor in a
bookcase or some other enclosed space, be sure to provide adequate ventilation.
• Put your monitor in a location with low humidity and a minimum of dust. Avoid places like damp basement or dusty hallways.
• Do not expose the monitor to rain or use it near water (in kitchens, next to swimming pools, etc.). If the monitor accidentally gets wet, unplug it and
contact an authorized dealer immediately. You can clean the monitor with a damp cloth when necessary, but be sure to unplug the monitor first.
• Place the monitor on a solid surface and treat it carefully. The screen can be damaged if dropped, sharply hit or touched with a sharp or abrasive
implement.
• Locate your monitor near an easily accessible AC outlet.
• If your monitor does not operate normally - in particular, if there are any unusual sounds or smells coming from it - unplug it immediately and contract an
authorized dealer or service center.
Information in this document is subject to change without notice.
1994 -1999 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text:
Dell and the DELL logo are registered trademarks of Dell Computer Corporation;Windows is a registered trademark of
Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell
Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
July 1999 P/N 8840P, 7840P and 1050P
Accessing the User’s Guide through Online or CD-ROM
1. To view the most up-to-date Online User’s Guide, go to www.dell.com and go to the support section of the website. If you do
not have Internet access, continue with step 2.
2. Insert the CD into your CD-ROM drive. A start-up document should launch automatically. Note: If the start-up document does not launch automatically,
click on the START button, RUN, type “D:\monitor.htm”, and click OK. Substitute the correct CD-ROM drive letter if it is not the “D:”drive.
3. Click on the appropriate icon to bring up the User’s Guide in the desired language.
