Troubleshooting list, Additional help

6.2 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	Remark

LED on Touch / Screen	voltage supply not in	check plug-in connection of power
Commander remains dark	order	supply
	computer switched off	switch on the computer
LED on Touch / Screen	VGA cable is not	check cable connection of VGA
Commander lights up red	correctly connected	connection
and no picture appears
The display shows only	choice of display	check for correct display resolution
part of the picture or the	resolution is wrong	it should be 1024x768 or less
picture is distorted	display adjustment	see notice to adjustment of in
	insufficient	chapter 3.3
LCD shows indistinct	display ("HORIZONTAL	set horizontal size of picture in
vertical stripes	SIZE") is insufficiently	menu IMAGE POSITION of
	set	OSD(see chapter 3.3.2)
LCD shows fine horizontal	display ("PHASE") is	adjust PHASE in menu BASIC-
stripes	not correctly adjusted	SETTINGS of OSD (see chapter
		3.3.1)
Touch cannot be calibrated	cable connection	check serial connection, restart
under the operating	incorrect	computer
systems of Windows,
button "calibrate" is
deactivated
Vertical streaks in LCD	Display “Clock” or	Set horizontal position and size of
image	“Horizontal Position”	picture in menu “H-Position”and
	improperly set	“Clock” of OSD (see chapter 3.3.2)
Calibrating program states	touchscreen driver not	Set the driver again with SETUP or
error when called up	correctly installed	with button setup in the calibrating
		program. Here the serial connection
		should be correctly entered and the
		correct controller should be
		selected. Check the serial cable
		connection

6.3 Additional help

If you have problems with the connection and the installation of the Preh Touch / Screen Commander, please contact your dealer.

You can contact Preh Technical Support at:

Germany /world wide:
Email:	support@preh-keytec.de
Fax:	+49 (9771) 92-152
USA/America:
Email:	techsupport@preh.com
Fax:	+1 847-438-4053
15	subject to change without prior notice	05.2004
	Preh KeyTec GmbH, www.preh-keytec.com