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

English 31

Page 32
Image 32
HP P1130 P4819A manual No picture and LED is off, No picture and LED is on, Colors are not pure, Picture is not centered