Dell S2240T 21.5 Multi- with LED User Guide - Page 47

Touch Problem, Specific, Symptoms, What You, Experience, Possible Solutions

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Safety Related Issues Intermittent Problems Visible signs of smoke or sparks Monitor malfunctions on & off Missing Color Picture missing color Wrong Color Picture color not good Image retention Faint shadow from a static from the static image left on image displayed the monitor for appears on the a long period of screen time • Do not perform any troubleshooting steps. • Contact Dell immediately. • Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. • Reset the monitor to Factory Settings. • Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. • Perform monitor self-test feature check. • Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. • Check for bent or broken pins in the video cable connector. • Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending on the application. • Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color Settings OSD if the Color Management is turned off. • Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD. • Run the built-in diagnostics. • Use the Power Management feature to turn off the monitor at all times when not in use (for more information, see Power Management Modes). • Alternatively, use a dynamically changing screensaver. Touch Problem Specific Symptoms What You Experience Possible Solutions Touch report error Touch function miss alignment or no touch function • Make sure power cord comes with ground pin. • Unplug and replug the DC cable from power adapter to allow touch module auto recalibration. • Make sure to use Dell provide USB cable, connect with computer. • Make sure computer support USB 2.0 cable. • If the device cannot be detected by system, power off/on the monitor or plug out/in the USB cable. Touch screen no response in saving mode Could not wake up monitor and computer by touching in saving mode • Access to Device Manager and choose HID Interface Device under Human Device. • Select HID- compliant device Properties • Allow the device to wake the computer. Troubleshooting | 47

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Troubleshooting
|
47
Touch Problem
Safety Related
Issues
Visible signs of
smoke or sparks
•
Do not perform any troubleshooting steps.
•
Contact Dell immediately.
Intermittent
Problems
Monitor
malfunctions on
& off
•
Ensure that the video cable connecting the monitor to the
computer is connected properly and is secure.
•
Reset the monitor to
Factory Settings
.
•
Perform monitor self-test feature check to determine if the
intermittent problem occurs in self-test mode.
Missing Color
Picture missing
color
•
Perform monitor self-test feature check.
•
Ensure that the video cable connecting the monitor to the
computer is connected properly and is secure.
•
Check for bent or broken pins in the video cable connector.
Wrong Color
Picture color not
good
•
Change the
Color Setting Mode
in the
Color Settings
OSD
to
Graphics
or
Video
depending on the application.
•
Try different
Color Preset Settings
in
Color Settings
OSD.
Adjust R/G/B value in
Color Settings
OSD if the
Color
Management
is turned off.
•
Change the
Input Color Format
to PC RGB or YPbPr in the
Advance Setting
OSD.
•
Run the built-in diagnostics.
Image retention
from a static
image left on
the monitor for
a long period of
time
Faint shadow
from the static
image displayed
appears on the
screen
•
Use the Power Management feature to turn off the monitor
at all times when not in use (for more information, see
Power Management Modes
).
•
Alternatively, use a dynamically changing screensaver.
Specific
Symptoms
What You
Experience
Possible Solutions
Touch report
error
Touch function
miss alignment or
no touch
function
•
Make sure power cord comes with ground pin.
•
Unplug and replug the DC cable from power adapter to
allow touch module auto recalibration.
•
Make sure to use Dell provide USB cable, connect with
computer.
•
Make sure computer support USB 2.0 cable.
•
If the device cannot be detected by system, power off/on
the monitor or plug out/in the USB cable.
Touch screen
no response in
saving mode
Could not wake
up monitor and
computer by
touching in
saving mode
•
Access to Device Manager and choose HID Interface Device
under Human Device.
•
Select HID- compliant device Properties
•
Allow the device to wake the computer.