User’s Guide
Q-POS 815
7-51
testing each layer until the problem is isolated. Also try removing
other hardware and software that may be conflicting with the touch
screen hardware and driver software.
7.7.3
Video Alignment Problems
If the touch screen is responding and the data is linear, but a touch
does not activate the appropriate zone in the application, try video
alignment. Use ELOCALIB under DOS or the Touch screen Control
Panel with all versions of MonitorMouse. Improper video alignment
may be indicated when the cursor does not move at the same pace as
a sliding finger, or when it moves in the opposite direction. The cursor
should always move in the same axis as your finger.
If you have a DOS application, erase any ELOGRAPH.CAL files and
complete video alignment in the video mode used by your application.
For example, you may have a VGA monitor with your application
running in text mode, so complete video alignment in text mode rather
than graphics mode.
7.7.4 Hardware
Troubleshooting
Troubleshooting the touch screen hardware may require analysis of
the touch screen, controller, cables, power supply, and the integration
process. The best place to start is with the controller. Use the
controller power-on diagnostics that are displayed when the Elo driver
software is loaded to check for specific faults. Also, check whether the
controller is transmitting any touch data. Use the COMDUMP
program for serial controllers. The 2310B operates at 9600 baud, 8
data bits, 1 stop bit, and no parity.
No touch data:
When no touch data is reported, the problem may be
the touch screen, controller, or cabling. If the controller power-on
diagnostics or diagnostic LED’s do not identify the problem, substitute
individual system components if they are available.
