HP 285 Maintenance and Service Guide - Page 80

No Connection, Check Signal Cable displays on screen., panel monitor.

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"No Connection, Check Signal Cable" displays on screen. Cause Monitor video cable is disconnected. Solution Connect the video cable between the monitor and computer. CAUTION: Ensure that the computer power is off while connecting the video cable. "Out of Range" displays on screen. Cause Video resolution and refresh rate are set higher than what the monitor supports. 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 7: 1. Restart the computer. 2. Press and hold the F8 key as your computer restarts, before the Windows logo appears. If the Windows logo appears, you must restart the computer and try again. 3. On the Advanced Boot Options screen, use the arrow keys to highlight the safe mode option you want, and then press Enter. 4. Log on to your computer with a user account that has administrator rights. When your computer is in safe mode, Safe Mode displays in the corners of your monitor. To exit safe mode, restart your computer and let Windows start normally. 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. High pitched noise coming from inside a flat panel monitor. Cause Brightness and/or contrast settings are too high. Solution 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 unable to correctly interpret the output synchronization of the graphics card. 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 72 Chapter 6 Troubleshooting without diagnostics

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“No Connection, Check Signal Cable” displays on screen.
Cause
Solution
Monitor video cable is disconnected.
Connect the video cable between the monitor and computer.
CAUTION:
Ensure that the computer power is
off
while
connecting the video cable.
“Out of Range” displays on screen.
Cause
Solution
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.
To enter Safe Mode in Windows 7:
1.
Restart the computer.
2.
Press and hold the
F8
key as your computer restarts, before
the Windows logo appears. If the Windows logo appears,
you must restart the computer and try again.
3.
On the Advanced Boot Options screen, use the arrow keys to
highlight the safe mode option you want, and then press
Enter
.
4.
Log on to your computer with a user account that has
administrator rights.
When your computer is in safe mode,
Safe Mode
displays in
the corners of your monitor. To exit safe mode, restart your
computer and let Windows start normally.
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
.
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
unable to correctly interpret the output synchronization of the
graphics card.
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
72
Chapter 6
Troubleshooting without diagnostics