Hatteland JH 10T08 MMC, User Manual

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IND100077-8
INB100014-1 (Rev 27)
Appendix
Basic Trouble-shooting
GENERAL ISSUES FOR TFT PANEL BASED PRODUCTS
Note: Applies for a range of various products. This is only meant as a general guide.
N
O PICTURE / LED BEHAVIOUR:
If there is no light at all in the LED at the FRONT, check power cables. If the LED in front is green then check if the
brightness knob is turned to the right (max brightness). If still no picture, check if there is a VGA signal on the External
VGA connector. If you have a picture on the external VGA connector please look in BIOS documentation/chapter for
correct display settings in BIOS. Lack of image is most likely to be caused by incorrect connection, lack of power, or
wrong BIOS settings.
SCROLLING / UNSTABLE IMAGE:
Signal cable may not be completely connected to computer or TFT display. Check the pin assignments and signal tim-
ings of the display and your video card with respect to recommended timing and pin assignments. Make sure that the
video card is compatible and that it is properly seated / installed on the computer.
DISPLAY AREA IS NOT CENTERED / SIZED CORRECTLY
Make sure that a supported video mode has been selected on the display, or on the video card / system. If it is impos-
sible to position the image correctly, i.e. the image adjustment controls will not move the image far enough, then test
it again using another graphics card for the PC system. This situation may occur with a custom graphics card that is
not close to standard timings or if something is in the graphics line that may be affecting the signal, such as a signal
splitter (please note that normally a signal splitter will not have any adverse effect). If it is impossible to change to the
correct resolution/color depth, check if you have the right VGA driver installed in your system.
IMAGE APPEARANCE:
A faulty TFT panel can have black lines, pixel errors, failed sections, flickering or flashing image.
Incorrect graphics card refresh rate, resolution or interlaced mode will probably cause the image to be the wrong size,
it may scroll, flicker badly or possibly even no image is present. Sparkling on the display may be a faulty TFT panel
signal cable, and it needs service attention.
RGB Signal Only: Horizontal interference can usually be corrected by adjusting the PHASE (OSD menu).
Vertical interference can usually be corrected by adjusting the FREQUENCY (OSD menu).
DEW CONDENSATION BEHIND GLASS:
Note that this problem will not occur on bonded products. For non-bonded products, do the following:
Power on the TFT product and set brightness to 100%. Turn off any automatic screensavers on PC or
similar. During minutes the dew will be gone. To speed up the process, use a fan heater for a reasonable time. Do not
overheat the TFT product.
GENERAL ISSUES FOR COMPUTER BASED PRODUCTS
Note: Applies for a range of various products. This is only meant as a general guide.
CD-ROM FAILURE OR READ/DETECTION PROBLEMS:
If the product are operated/located in a area with extreme condensation, the CD/DVD drive may not work correctly
due to condensation on the read head. Keep the product on for a while until it’s reached normal operating tempera-
ture, and retry accessing discs. Otherwise, consider using USB memory sticks or
alternative storage devices.
NO CD-ROM AVAILABLE ON YOUR PRODUCT FOR INSTALLING DRIVERS/SOFTWARE:
Please use USB memory sticks, USB Floppy drive, USB CD-Rom Drive or alternative storage devices to
transfer/install software on CD-ROM-less units.