Operating Instructions

Malfunctions and troubleshooting
132 / 140 DLT-V72 Operating Instructions V2.50 Preliminary
17. Malfunctions and troubleshooting
Please contact Advantech if the DLT-V72 malfunctions.
Error Possible cause(s) Remedy
Battery pack run time
is significantly shorter
than specified.
The device may possibly
not be in the temperature
range which is necessary
for charging the battery
pack.
Check the temperature specifications for
the device and surroundings.
Maximum number of
charging cycles of the
battery pack has been
reached.
If temperature causes can be ruled out,
the battery pack has possibly reached
the maximum number of charging
cycles.
Replace the battery pack. Use only
original battery pack from Advantech.
No UPS functionality
although battery pack
is plugged in.
Battery pack is discharged
or deep discharged.
Charge the battery pack properly.
Observe: If the battery pack is deep
discharged, the charging time can
increase by a multiple.
Nothing is shown on
the display,
Power LED does not
light up.
There is no voltage present
on the device.
Check the power switch, plug
connection, power supply cable and
fuse.
Ignition signal missing. Check ignition cable and signal
Nothing is shown on
the display, Power
LED active.
Backlight is switched off. Press backlight key ("light bulb"
symbol).
Brightness to low Increase display brightness with key
Nothing is shown on
the display,
Temp LED active.
Operating temperature
limits
exceeded/undershot .
Wait until the device has cooled down
resp. warmed up.
Touchscreen reacts
imprecisely.
Device cannot be
operated by touch
input
Touchscreen is switched
off.
Press touchscreen on/off.
Touch driver error Reinstall the touch driver or change
settings
Touchscreen is not
calibrated correctly.
The touchscreens of the DLT-V72 is
already calibrated at the factory and
therefore and does usually not need to
be recalibrated.
However, the operating systems MS
Windows 7 Pro, Windows 8.1 Industry
and WE8S do permit recalibration of the
touchscreen via software (Menu
Control Panel -> Tablet PC Settings).
This resets the sensitivity of the
touchscreen to an operating system
default setting, which can result in
poorer detection of taps on the screen.
You can use Reset to reset the software
recalibration.
Operating system External boot media lock Remove all external storage