HP ProDesk 600 G4 Maintenance And Service Manual page 73

"Out of Range" displays on screen.
Cause
Video resolution and refresh rate are set higher than what the
monitor supports.
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 (some models).
Certain typed symbols do not appear correct.
Cause
The font you are using does not support that particular symbol.
Solution
Restart the computer and enter Safe Mode. Change the settings to
a supported setting then restart the computer so that the new
settings take effect.
To enter Safe Mode in Windows 10:
1. Log into the computer using an Administrator account.
2. Type msconfig in the taskbar search box, and then select
msconfig from the list of applications.
3. Click the Boot tab, select Safe boot and then click OK.
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. You can copy the symbol from the Character Map into a
document.
In Windows 10, type ch in the taskbar search box, and then select
Character Map from the list of applications.
Solving display problems 65