Preh mc12t4 Guía Del Usuario
16
subject to change without prior notice
05.2004
Preh KeyTec GmbH, www.preh-keytec.com
6.3 Troubleshooting
list
A lot of malfunctions can be traced back to incorrect or loose cable
connection. So please make sure that all plug connections are correct and
secured.
Fault Possible
cause
Remedy
voltage supply not in
order
order
check plug-in connection of
power supply
power supply
LED on Touch / Screen
Commander remains dark
Commander remains dark
computer switched off
switch on the computer
LED on Touch / Screen
Commander lights up red
and no picture appears
Commander lights up red
and no picture appears
VGA cable is not
correctly connected
correctly connected
check cable connection of
VGA connection
VGA connection
choice of display
resolution is wrong
resolution is wrong
check for correct display
resolution it should be
800x600 or less
resolution it should be
800x600 or less
The display shows only
part of the picture or the
picture is distorted
part of the picture or the
picture is distorted
display adjustment
insufficient
insufficient
see notice to adjustment of in
chapter 3.3
chapter 3.3
LCD shows indistinct
vertical stripes
vertical stripes
display ("HORIZONTAL
SIZE") is insufficiently
set
SIZE") is insufficiently
set
set horizontal size of picture
in menu IMAGE POSITION of
OSD(see chapter 3.3.2)
in menu IMAGE POSITION of
OSD(see chapter 3.3.2)
LCD shows fine horizontal
stripes
stripes
display ("PHASE") is not
correctly adjusted
correctly adjusted
adjust PHASE in menu
BASIC-SETTINGS of OSD
(see chapter 3.3.1)
BASIC-SETTINGS of OSD
(see chapter 3.3.1)
Touch does not work under
DOS and Windows 3.1
DOS and Windows 3.1
RS 232 cable connection
incorrect
incorrect
check serial cable connection
and restart computer. During
booting procedure look out for
error indication of the driver.
Check touchscreen with
diagnostic program
COMDUMP(see chapter
Diagnostic Program)
and restart computer. During
booting procedure look out for
error indication of the driver.
Check touchscreen with
diagnostic program
COMDUMP(see chapter
Diagnostic Program)
Touch cannot be calibrated
under the operating
systems of Windows,
button "calibrate" is
deactivated
under the operating
systems of Windows,
button "calibrate" is
deactivated
cable connection
incorrect
incorrect
check serial connection,
restart computer
restart computer
Calibrating program states
error when called up
error when called up
touchscreen driver not
correctly installed
correctly installed
Set the driver again with
SETUP or with button setup
in the calibrating program.
Here the serial connection
should be correctly entered
and the correct controller
(E271-2210) or controller
model (SmartSet 2xx0)
should be selected. Check
the serial cable connection
SETUP or with button setup
in the calibrating program.
Here the serial connection
should be correctly entered
and the correct controller
(E271-2210) or controller
model (SmartSet 2xx0)
should be selected. Check
the serial cable connection