Solving Audio Problems - HP Z228 Maintenance And Service Manual

Problem
Clicking noise coming from inside a
CRT monitor.
High pitched noise coming from
inside a flat-panel monitor.
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.)
Some typed symbols do not appear
correctly.

Solving audio problems

Problem
Sound does not come out of the
speaker or headphones.
Noise or no sound comes out of the
speakers or headphones.
Cause
Electronic relays have been
activated inside the monitor.
Brightness and contrast settings
are too high.
Flat-panel monitor's internal
digital conversion circuits might
be unable to correctly interpret
the output synchronization of
the graphics card.
The font you are using does not
support that symbol.
Cause
Software volume control is
turned down.
The external speakers are not
turned on.
External speakers plugged into
the wrong audio jack.
Digital CD audio is not enabled.
Headphones or devices
connected to the line-out
connector have muted the
internal speaker.
Volume is muted.
Computer is in Standby mode.
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.
Lower brightness and contrast settings.
1. Select the monitor's Auto-Adjustment option in the
monitor's onscreen display menu.
2. Manually synchronize the Clock and Clock Phase
onscreen display functions.
3. Download SoftPaq SP22333 to assist with the
synchronization).
Use the Character Map to locate and select the appropriate
symbol.
For Windows 7, select Start > All Programs > Accessories >
System Tools > Character Map. You can copy the symbol
from the Character Map into a document.
For Windows 8, from the Start screen, type character
map. The application appears under the Apps heading.
Solution
Double-click the Speaker icon on the taskbar, and then use
the volume slider to adjust the volume.
Turn on the external speakers.
See your sound card documentation for proper speaker
connection.
Enable digital CD audio:
1. From the Control Panel, select System.
2. On the Hardware tab, select the Device Manager button.
3. Right-click the CD/DVD device and select Properties.
4. On the Properties tab, select Enable digital CD audio for
this CD-ROM device.
Turn on and use headphones or external speakers, if
connected, or disconnect headphones or external speakers.
1. From the Control Panel, select Sound, Speech and Audio
Devices, and then select Sounds and Audio Devices.
2. Deselect the Mute checkbox.
Press the power button to resume from Standby mode.
1. If you are using digital speakers that have a stereo jack
and you want the system to autoswitch to digital, use a
Troubleshooting scenarios and solutions 61