VarTech Systems VT121 CrystalVueSeries, Руководство пользователя

Страница: 12 / 22

12
SECTION 4
TOUCHSCREEN
4.1
Introduction
Touch screens are a common means to interface operator inputs to a system. The universal
standard of Windows GUI (Graphical User Interface) has significantly increased the use of touch
screens.
There are four main touch technologies. The technologies are resistive, surface acoustic wave
(SAW), capacitive, and infrared (IR). Each touch technology has advantages and
disadvantages based on different user applications.
4.2
Installation
All Vartech Systems displays configured with a touch screen are supplied with a CDROM which
includes user manuals, application software, and drivers for various operating systems. Insert the
supplied CDROM into a CDROM drive and follow the installation instructions that will appear on the
screen.
Technical support is available by contacting Vartech Systems customer support at 800-223-
8050.
SECTION 5
5.1
Troubleshooting
General
A general guide to troubleshooting a flat panel display system it is worth considering the system as
separate elements, such as: Controller (jumpers, PC settings) Panel (controller, cabling, connection,
panel, PC settings) Backlight (inverter, cabling, backlight tubes) Cabling Computer system (display
settings, operating system) Through step by step cross checking with instruction manuals and a
process of elimination to isolate the problem it is usually possible to clearly identify the problem area.
No image:
If the panel backlight is not working it may still be possible to just see some image on the
display. A lack of image is most likely to be caused by incorrect connection, lack of power,
failure to provide a signal or incorrect graphic card settings.