Quintessence Support

LG and Samsung Touch Screens

Power 

If the screen appears completely off, please follow the below steps:
  1. Press the red ‘on’ button on the remote control that was supplied with the screen, ensure you are pointing the control at the sensor for the screen.
  2. If the screen still does not come on check that the PC that is connected to the screen is on and showing a blue light, if not showing a blue light, press the power button on PC.

If the screen is showing a signal but displaying a blank screen, please follow the below step:
  1. Using the remote control, press the source button, then toggle through the source options and select the correct HDMI source.

If the screen is on and showing ‘No Signal’ please follow the below steps:
  1. Press the ‘source’ button on the remote control and check it is on the correct HDMI source as supplied.     
  2. If the screen is still showing ‘No Signal’ check that the PC that is connected to the screen is on and showing a blue light, if not showing a blue light, press the power button on PC.
  3. If the screen is still is showing ‘No signal’ and the correct HDMI source has been selected and the PC is showing a blue light, please press the power button on the PC and keep depressed for 10 seconds. This will switch the PC off. Please wait for 30 seconds.
  4. Press the power button to restart the PC.


Touch Sensitivity 

If the screen is on and the touch is not responding, or it is over sensitive please follow the below instructions:
  1. Check that the touch controller USB that is connected to the front of the PC is secure.
  2. If it is not secure, please remove completely and reattach.
  3. If the screen is still not responding to touch, please press the power button on the PC and keep depressed for 10 seconds. This will switch the PC off, Please wait for 30 seconds.
  4. Press the power button to restart the PC.

Troubleshooting Tips


    The first step in troubleshooting a touchscreen system is to determine whether the problem is related to the display, software, or hardware:
    Do not confuse display problems with touchscreen problems—the two are unrelated.
    Software problems are determined by a basic hardware functionality test. If the hardware transmits touch coordinates correctly, then the problem is with the driver or application software.
    Hardware problems may be caused by the touchscreen, controller, cabling, power supply, or by the integration of the touchscreen components in the display.The easiest way to verify a hardware failure is by substitution, if you have more than one unit to try








      

 




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