HP Compaq Pro 6305 Maintenance And Service Manual page 161

Microtower business pc & small form factor business pc
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Clicking noise coming from inside a CRT monitor.
Cause
Electronic relays have been activated inside the monitor.
High pitched noise coming from inside a flat panel monitor.
Cause
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).
Cause
Flat panel monitor's internal digital conversion circuits may
be unable to correctly interpret the output synchronization of
the graphics card.
Graphics card is not seated properly or is bad.
Certain typed symbols do not appear correct.
Cause
The font you are using does not support that particular
symbol.
Solution
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.
Solution
Lower brightness and/or contrast settings.
Solution
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. To download a SoftPaq that
will assist you with the synchronization, go to the
following Web site, select the appropriate monitor, and
download either SP32347 or SP32202:
http://www.hp.com/support
1.
Reseat the graphics card.
2.
Replace the graphics card.
Solution
Use the Character Map to locate 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 153

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