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HP L5006tm 15" Touchscreen Monitor - Troubleshooting

Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the recommended solutions.
Problem
Possible Cause
Solution
Screen is blank.
Power cord is disconnected.
Connect the power cord.
Power switch on front panel of the monitor is turned off.
Press the front panel power button.
Video cable is improperly connected.
Connect the video cable properly.
Screen blanking is active.
Press any key on the keyboard or move the mouse to inactivate the screen blanking utility.
The monitor does not respond after you turn on the system.
Check power.
Check that the monitor’s power switch is on. Turn off power and check the monitor’s power cord and signal cable for proper connection.
Image appears blurred, indistinct, or too dark.
Brightness and contrast are too low.
Press the Menu button to display the OSD. Use the or button to adjust the brightness and contrast scales as needed.
Screen flashes when initialized.
Turn the monitor off then turn it on again.
Check Video Cable is displayed on screen.
Monitor video cable is disconnected.
Connect the video signal cable to the VGA connector on the computer. Be sure that the computer power is off while connecting the video cable.
Out of Range is displayed on screen.
Video resolution and/or refresh rate are set higher than what your monitor supports.
Restart your computer and enter Safe Mode. Change your settings to a supported setting. Restart your computer so that the new settings take effect.
Touchscreen Tips
If you experience operational issues with the touchscreen system either during or after installation, use the tips below to help you determine the source of the problem.
  • If No Elo touchmonitor found is displayed on the screen, install the latest drivers. Touchmonitors with the dual serial/USB interface require the latest drivers. If you are replacing an existing installation and see this problem, you should update your touchscreen driver with one from the Elo Web site Driver and File Downloads page.
  • Be sure to calibrate the touchscreen monitor. Touch response must be aligned to the video image (this is sometimes called calibration). Normally this need only be done when the touch drivers are initially installed.
    To calibrate the touchscreen:
    1. Click the Windows Start button.
    2. Select Settings > Control Panel (on later operating systems the Settings step is omitted).
    3. Open the Elo application by double-clicking the Elo icon.
      On Windows XP it may be necessary to click the Show Classic View button on the left side of the screen to see the Elo icon.
    4. Click the Alignment/Calibration button.
      The Alignment/Calibration button is always on the General tab of the Elo Control Panel tab set. It may be titled Calibrate, Align or it may just be an icon (fingers and cross marks on a display).
    5. Touch the target that is displayed in the upper left corner. The target will reappear in the lower right corner
    6. Touch the lower right target. The target will reappear in the upper right corner.
    7. Touch the upper right target. The next screen is an alignment check.
    8. On the alignment check screen, touch various places on the screen and see that the cursor jumps to the point of touch.
      A progress bar displays the relative time remaining before the routine will time out; if time-out is reached, the routine is aborted and the new alignment points are not retained
      If response is correct, touch the Accept button - it may be a Yes button or a green check.
      Clicking the No or Redo arrow icon will display the targets again to rerun the alignment routine. Remember, you must click the Accept button to store the new alignment points.
  • If the touchscreen is not responding to touch, check your serial or USB connection by doing the following:
    • Serial Connection—Run the comdump diagnostic utility to determine if the touchscreen, the serial touch controller, the computer's serial COM port and the associated cabling are connected and functioning properly. Download the latest version of comdump.exe (7K) from the Elo Web site Driver and Files Download page. You should save the file where it can be accessed easily—either to a floppy or to the root of your hard drive. Comdump is a DOS application, so if you are running one of the Windows operating systems you must either boot to a DOS boot diskette or disable the driver so you can access the COM port from a command prompt.
    • USB Connection—f the Human Interface Device (HID) is not listed in Device Manager after a USB touchmonitor is connected, check to determine if a file named mouhid.sys is in the \windows (or winnt) \system32\drivers folder.
      • The file will be missing if a USB mouse has never been connected to the system.
      • If the file is not there, connect a USB mouse to the system or copy mouhid.sys from another system.
      • Once mouhid.sys is in the proper location, remove and reinstall the touch drivers.
      If you have determined that the HID files are missing or corrupted ("Error installing mouse" when installing the HID drivers, and also a yellow "!" in Device Manager under Mouse), check that all of the following files are present in the \\winnt\system32\drivers folder:
      • Hidusb.sys
      • Hidclass.sys
      • Hidparse.sys
      • Mouhid.sys
      If all the files are there, try replacing them with the same files from a known good system. It is suggested that you save the original files in a backup directory.
  • The touch can not be held longer than 10 seconds. IntelliTouch controllers have a built-in two minute untouch time-out. By default, the 4.20 Universal driver generates an untouch after 10 seconds of constant touch. The untouch time-out can be changed by modifying a registry key. This time-out will override any registry time-out value if the registry value exceeds 120 seconds (120000 milliseconds).
    To change the time-out time:
    1. Run regedit or regedt32 (click Start > Run, enter regedit).
    2. Drill down to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Enum.
      • For serial controllers: SERENUM > ELOSERIAL > ******* > Device Parameters.
      • For USB controllers: HID > VID_04e7 > ******** > ***************** > Device Parameters.
          note:
        The "******" entries are id numbers used by the Windows operating system.
    3. Double-click the UntouchTimeOut key. The Edit DWORD Value dialog box opens.
    4. Click the Decimal radio button. Value displays in decimal (default: 10000).
    5. Enter the delay time in milliseconds, 60000 is 60 seconds.
    6. Exit regedit when done.
    7. Shut Down and restart the machine. A restart is required before the setting will take effect.
  • A cursor is not visible. To make the cursor visible, first, open Control Panel > Elo Touchscreen > Mode tab. Check if the Hide arrow mouse pointer box is checked; if yes, un-check it and click OK. If a mouse is not installed on the computer, shut down the computer, install a mouse, then restart the computer. The cursor should now be visible. You may then shut down and remove the mouse, or leave it connected, as desired.
  • If connecting multiple monitor systems, all monitors must be configured to have independent resolution control (as in two monitors, each at 1024 x 786 resolution), rather than a single, large desktop (as in 2048 x 768). Multiple individual video cards are automatically set up as individual monitors. Some multiport video cards can be configured either way; in this case, the video driver must be set up properly. Once the multiport video has been properly configured, the Elo Universal driver should be removed and reinstalled. Some multiport video cards can only be configured as a single large desktop, and they will not work with Elo's multiple monitor driver setup.
Using the Worldwide Web
For the online access to technical support information, self-solve tools, online assistance, community forums of IT experts, broad multivendor knowledge base, monitoring and diagnostic tools, go to http://www.hp.com/support
Preparing to Call Technical Support
If you cannot solve a problem using the trouble shooting tips in this section, you may need to call technical support. Have the following information available when you call:
  • The monitor
  • Monitor model number
  • Serial number for the monitor
  • Purchase date on invoice
  • Conditions under which the problem occurred
  • Error messages received
  • Hardware configuration
  • Hardware and software you are using

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