HP Xw9400 - Workstation - 16 GB RAM - Page 157

Problem Cause Solution
The picture is broken up,
rolls, jitters, or flashes.
The monitor connections
might be incomplete or
the monitor might be
incorrectly adjusted.
1. Be sure the monitor cable is securely
connected to the workstation.
2. In a two-monitor system or if another
monitor is in close proximity, be sure the
monitors are not interfering with each
other’s electromagnetic field by moving
them apart.
3. Be sure that fluorescent lights or fans are
not too close to the monitor.
Monitor needs to be
degaussed.
Degauss the monitor.
Vibrating or rattling noise
coming from inside a CRT
monitor when powered on.
Monitor degaussing coil
has been activated.
None. It is normal for the degaussing coil to be
activated when the monitor is powered on.
Clicking noise coming from
inside a CRT monitor.
Electronic relays have
been activated inside the
monitor.
None. It is normal for some monitors to make a
clicking noise when turned on and off, when
going in and out of Standby mode, and when
changing resolutions.
High pitched noise coming
from inside a flat panel
monitor.
Brightness and contrast
settings are too high.
Lower brightness and contrast settings.
Fuzzy focus; streaking,
ghosting, or shadowing
effects; horizontal scrolling
lines; faint vertical bars; or
unable to center the picture
on the screen. (Flat panel
monitors using an analog
VGA input connection only.)
Flat panel monitor’s
internal digital
conversion circuits might
be unable to correctly
interpret the output
synchronization of the
graphics card.
1. Select the monitor’s Auto-Adjustment
option in the monitor’s on-screen display
menu.
2. See the HP Support website and check for
an updated display driver.
3. Manually synchronize the Clock and Clock
Phase on-screen display functions.
Download the appropriate utility from the
HP website to assist with the
synchronization.
Certain typed symbols do
not appear correct.
The font you are using
does not support that
particular symbol.
Use the Character Map to locate the and select
the appropriate symbol. Click Start>All
Programs> Accessories>System
Tools>Character Map. You can copy the
symbol from the Character Map into a
document.
Table 6-7 Display problems (continued)
ENWW Troubleshooting scenarios and solutions 147