HP P920 P930 Monitor - User's Guide - Enhanced for accessibilty - Page 33

Using the worldwide Web - monitor service manual

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Troubleshooting Problem Possible Cause Solution The monitor makes a buzzing sound when powered on. Monitor is automatically The brief vibration or hum degaussing or eliminating sound after powering on the possible color shading or monitor is normal. The sound color impurity. will occur each time the monitor is powered up from a cold start and each time the manual degauss button is used. "No Connection, Monitor video cable is Check Signal Cable" is disconnected. displayed on screen. Connect the 15-pin monitor video cable to the computer. Be sure that the computer power is on. "Sync. Out of Range, Video resolution and/or Restart your computer and 68.77kHz 168Hz PP" refresh rate are set higher enter Safe Mode. Change is displayed on screen. than what your monitor your settings to a supported supports. setting (see "Technical Specifications"). Restart your computer so that the new settings take effect. Monitor is overheating. There is not enough air space to allow proper ventilation. Leave at least 3 inches (76mm) of ventilation space around the monitor. Using the worldwide Web Before contacting customer services, refer to the support web site at: http://www.hp.com/go/support User Guide A-3

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Troubleshooting
Problem
Possible Cause
Solution
The monitor makes a
buzzing sound when
powered on.
Monitor is automatically
degaussing or eliminating
possible color shading or
color impurity.
The brief vibration or hum
sound after powering on the
monitor is normal. The sound
will occur each time the
monitor is powered up from a
cold start and each time the
manual degauss button is
used.
“No Connection,
Check Signal Cable” is
displayed on screen.
Monitor video cable is
disconnected.
Connect the 15-pin monitor
video cable to the computer.
Be sure that the computer
power is on.
“Sync. Out of Range,
68.77kHz 168Hz PP”
is displayed on screen.
Video resolution and/or
refresh rate are set higher
than what your monitor
supports.
Restart your computer and
enter Safe Mode. Change
your settings to a supported
setting (see “Technical
Specifications”). Restart your
computer so that the new
settings take effect.
Monitor is overheating. There is not enough air
space to allow proper
ventilation.
Leave at least 3 inches (76mm)
of ventilation space around the
monitor.
Using the worldwide Web
Before contacting customer services, refer to the support web
site at:
User Guide
A-3