HP Xw9400 HP xw9400 Workstation - Service and Technical Reference Guide - Page 157

Problem, Cause, Solution, Start>All, Programs> Accessories>System, Tools>Character Map

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Table 6-7 Display problems (continued) Problem Cause Solution The picture is broken up, rolls, jitters, or flashes. The monitor connections 1. Be sure the monitor cable is securely might be incomplete or connected to the workstation. the monitor might be incorrectly adjusted. 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 Monitor degaussing coil None. It is normal for the degaussing coil to be coming from inside a CRT has been activated. activated when the monitor is powered on. monitor when powered on. Clicking noise coming from inside a CRT monitor. Electronic relays have None. It is normal for some monitors to make a been activated inside the clicking noise when turned on and off, when monitor. going in and out of Standby mode, and when changing resolutions. High pitched noise coming Brightness and contrast Lower brightness and contrast settings. from inside a flat panel settings are too high. monitor. Fuzzy focus; streaking, Flat panel monitor's 1. Select the monitor's Auto-Adjustment ghosting, or shadowing internal digital option in the monitor's on-screen display effects; horizontal scrolling conversion circuits might menu. lines; faint vertical bars; or be unable to correctly unable to center the picture interpret the output on the screen. (Flat panel synchronization of the 2. See the HP Support website and check for an updated display driver. monitors using an analog graphics card. VGA input connection only.) 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. ENWW Troubleshooting scenarios and solutions 147

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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