HP d248 HP Compaq Business Desktop d200 Series Personal Computers Service Refe - Page 89

Start > All Programs &gt, Accessories > System Tools &gt, Character Map, Problem, Cause - manual

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Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause High pitched noise coming from inside a flat panel monitor. Brightness and/or contrast settings are too high. 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 may be unable to correctly interpret the output synchronization of the graphics card. Certain typed symbols do not appear correct. The font you are using does not support that particular symbol. Solution Lower brightness and/or contrast settings. 1. Select the monitor's Auto-Adjustment option in the monitor's on-screen display menu. 2. Manually synchronize the Clock and Clock Phase on-screen display functions. Download SoftPaq SP20930 or SP22333, depending on the monitor, to assist with the synchronization. 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. Service Reference Guide, d200 336493-004 D-11

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Service Reference Guide, d200
336493-004
D–11
Troubleshooting Without Diagnostics
High pitched noise coming
from inside a flat panel
monitor.
Brightness and/or
contrast settings are too
high.
Lower brightness and/or 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 may
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. Manually synchronize the Clock
and Clock Phase on-screen
display functions. Download
SoftPaq SP20930 or SP22333,
depending on the monitor, 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.
Solving Display Problems
(Continued)
Problem
Cause
Solution