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HP 21” Color Monitor User’s Guide
Troubleshooting
No picture and LED is off
• Check if monitor is switched ON
• Check if power cord is properly connected
• Check if electrical outlet is connected
• Test if monitor works on another PC previously set to monitor’s
supported resolution
No picture and LED is on
• Check if monitor is not in power saving mode
• Try changing the video input selection
• Adjust contrast and brightness through Menu using the control
buttons
• Check if PC is switched on
• Check if video cable has no bent pins
• Test if monitor works
Colors are not pure
• Degauss your monitor
• Shut down your monitor and switch it on after 30 minutes
Picture is not centered
• Adjust picture through Menu using the control buttons
Picture is fuzzy
• Use the Recall function
• Reduce contrast through Menu using the control buttons
• Adjust moire reduction to zero
P4819A_us.fm Page 31 Friday, September 21, 2001 4:00 AM