HP 280 G1 manual Solving audio problems, Certain typed symbols do not appear correct Cause

High pitched noise coming from inside a flat panel monitor.

Cause	Solution
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).

Cause	Solution
Flat panel monitor’s internal digital conversion circuits may be	1.	Select the monitor’s Auto-Adjustment option in the
unable to correctly interpret the output synchronization of the		monitor’s on-screen display menu.
graphics card.	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

Graphics card is not seated properly or is bad (some models).

1.Reseat the graphics card.

2.Replace the graphics card.

Certain typed symbols do not appear correct.

Cause Solution

The font you are using does not support that particular symbol.

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 7, click Start, select All Programs, select Accessories, select System Tools, and then select Character Map.

In Windows 8.1, on the Start screen, type ch, and then select Character Map from the list of applications.

Solving audio problems

If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table.

Sound cuts in and out.

Cause	Solution
Processor resources are being used by other open applications.	Shut down all open processor-intensive applications.

76 Chapter 7 Troubleshooting without diagnostics