Troubleshooting Without Diagnostics

Solving Display Problems (Continued)

Problem

Cause

Solution

 

 

 

Image is not centered.

Position may need

Press the Menu button to access the

 

adjustment.

OSD menu. Select

 

 

ImageControl/Horizontal

 

 

Position or VerticalPosition to

 

 

adjust the horizontal or vertical

 

 

position of the image.

 

 

 

“No Connection, Check

Monitor video cable is

Connect the video cable between

Signal Cable” displays on

disconnected.

the monitor and computer.

screen.

 

Ä Ensure the computer power is

 

 

 

 

off while connecting the video

 

 

cable.

“Out of Range” displays on screen.

Video resolution and refresh rate are set higher than what the monitor supports.

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.

Vibrating or rattling noise

Monitor degaussing coil

None. It is normal for the

coming from inside a CRT

has been activated.

degaussing coil to be activated

monitor when powered on.

 

when the monitor is powered on.

 

 

 

Clicking noise coming from

Electronic relays have

None. It is normal for some monitors

inside a CRT monitor.

been activated inside

to make a clicking noise when

 

the monitor.

turned on and off, when going in

 

 

and out of standby mode, and when

 

 

changing resolutions.

 

 

 

High pitched noise coming

Brightness and/or

Lower brightness and/or contrast

from inside a flat panel

contrast settings are too

settings.

monitor.

high.

 

 

 

 

Fuzzy focus; streaking,

Flat panel monitor’s

1. Select the monitor’s

ghosting, or shadowing

internal digital

Auto-Adjustment option in the

effects; horizontal scrolling

conversion circuits may

monitor’s on-screen display

lines; faint vertical bars; or

be unable to correctly

menu.

unable to center the picture

interpret the output

2. Manually synchronize the Clock

on the screen.

synchronization of the

and Clock Phase on-screen

(flat panel monitors using

graphics card.

display functions. To download

an analog VGA input

a SoftPaq that will assist you

connection only)

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.

1.Reseat the graphics card.

2.Replace the graphics card.

 

D–16

433611-001

Service Reference Guide, dx7300