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15.1 Troubleshooting
Chapter 15
1. How do I adjust the resolution?
To change monitor resolution, click Start -> Control Panel -> Display. Select Setting tab to adjust the monitor resolution in
Desktop Area. The available resolutions, "640 x 480", "800 x 600", "1024 x 768", "1152 x 864", "1280 x 1024", are deter-
mined by the display card in your computer.
2. Is interference signal appeared on LCD normal when shutting down the computer ?
In rare cases, interference may appear on the monitor. This may be caused by signal rate of VGA card and is considered
normal. The image quality can be improved by adjusting the phase or pixel rate automatically or manually.
3. The membrane power light is not ON
Press the power On / Off on LCD membrane to check if the monitor is in the ON mode.
Check the power cord is properly connected to the LCD keyboard drawer and power outlet.
4. Screen image is not centered or sized properly
Press the button for two seconds to automatically adjust the image.
Adjust the H-position and V-position settings via On-screen menu.
5. Must calibration be down after installation completed?
After connecting your touch monitor and installing the software, you must calibrate the touchscreen. Calibration serves two
purposes:
(A) Set the active area of the touchscreen.
(B) Align the touchscreen’s active area to the underlying video.
6. The touchscreen is not accurate
Calibration should be required.
Make sure to touch the centre of each X once at a time.
7. The touchscreen is accurate in most areas, but off a lot in certain area
The touchscreen may have linearity problems. Please use touch screen and select more points calibration.
8. Why can the display not match to the touchscreen correctly after calibration?
The touchscreen will be aged after a certain period of consumption or under harsh environment. It is normal.
The touchscreen driver has an utility to adjust the situation. The calibration point can be more on the touch
screen.
ID-H17A/H17AN/H17D/H17P
