User`s guide

11
Appendix
Troubleshooting
If you are experiencing trouble with the LCD display, refer to the following. If the problem
persists, please contact your local dealer or our service center.
Problem: No image appears on screen.
► Check that all the I/O and power connectors are correctly and well connected
as described in the “Installation” section.
► Make sure the pins of the connectors are not crooked or broken.
Problem: Partial Image or incorrectly displayed image.
► Check to see if the resolution of your computer is higher than that of the LCD
display.
► Reconfi gure the resolution of your computer to make it less than or equal to
1920 x 1080.
Problem: Image has vertical fl ickering line bars.
► Use “Fine” to make an adjustment.
► Check and reconfi gure the display mode of the vertical refresh rate of your graphic
card to make it compatible with the LCD display.
Problem: Image is unstable and fl ickering
► Use “Fine”to make an adjustment.
Problem: Image is scrolling
► Check and make sure the VGA signal cable (or adapter) is securely connected.
► Check and reconfi gure the display mode of the vertical refresh rate of your
graphics card to make it compatible with the LCD display.
Problem: Vague image (characters and graphics)
► Use “Fine”to make an adjustment. If this problem still exists, use “Horizontal size”
to make an adjustment.
Problem: Touch no function (for Microsoft Windows® 7 only)
► Microsoft Windows® 7 operating system requires 15 seconds to recognize the
PT3285PW after connecting the USB cable and power cable.