User Manual

Troubleshooting

Video Troubleshooting

Troubleshooting

IMPORTANT!

If using a KVM extender, first try to resolve any problems using the solutions listed below. If the problem still exists, try bypassing the KVM extender. If this fixes the problem and allows the monitor to work properly, then the KVM extender is the source of the problem� Please refer to the troubleshooting section of the KVM extender manual or contact Hope Industrial Systems for additional assistance.

Symptom

No image on the screen and control's

Power Indicator light is not lit

No image on the screen and control's

Power Indicator light is lit solid red

No image on the screen and control's

Power Indicator light is blinking orange or blinking green

Causes

Power cable is not plugged in.

Solutions

• Check power connections at the monitor and power source�

• For DC models, check the connector polarity and ensure input voltage is 9.6 to 36.6 VDC.

Monitor is not powered on. Press the Power button on the monitor for 1-2 seconds to turn the monitor on and make sure the Power Indicator light is lit green.

Video cable is not plugged in correctly�

Check the video cable connection at the monitor, PC, and/or KVM extender.

PC is in Power Saving mode�

PC is not sending signal.

Analog signal is not a standard CVT signal (this does not apply to digital signals).

Power Saving mode can usually be exited by moving the mouse or pressing a key on the keyboard.

Connect PC to another known working monitor to check the PC source signal.

Disable the "CVT Mode" function in the

"Advanced Setup" menu located in the

OSD's "Setup" menu. This allows the monitor to use the controller board's internal mode table to display signal.

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Troubleshooting

Symptom

"Scanning Ports / No

Signal" message box and no image on the screen

Causes

Video cable is not plugged in correctly�

PC is not powered on�

PC is not sending signal.

Solutions

Check the video cable connection at the monitor, PC, and/or KVM extender.

Ensure PC is powered on�

Connect PC to another known working monitor to check the PC source signal.

Adjust the computer settings to the monitor's native resolution:

800 x 600 @ 60 Hz

"VGA / Out of

Range" or "DVI / Out of Range" message box and no image on the screen

Incorrectly displayed or partial image on the screen

Wrong or abnormal colors (white is not white)

Screen image is dim

The source signal exceeds the maximum resolution and/or refresh rate that the monitor can handle

( > 800 x 600 resolution or

> 60 Hz refresh rate)�

Monitor has not been adjusted correctly for the source signal.

Analog signal is not a standard CVT signal (this does not apply to digital signals).

Monitor color settings are incorrectly adjusted�

Video cable is not securely connected�

Video cable is bad�

Brightness and/or contrast settings are not set properly�

• Activate "Auto setup" function in the OSD's "VGA Settings" menu.

This function may also be activated by pressing the Select [ SEL ] button outside of the OSD menu�

• Fine tune the picture by manually adjusting the image using the settings in the OSD menu.

Disable the "CVT Mode" function in the

"Advanced Setup" menu located in the

OSD's "Setup" menu. This allows the monitor to use the controller board's internal mode table to display signal.

Reset monitor to the default settings by activating "Reset to factory defaults" function in the OSD's "Setup" menu.

If any colors (red, green, or blue) are missing, check the video cable to make sure it is securely connected�

Ensure no loose or broken pins in the cable connector� Shorts in cable could also cause improper image to display.

Adjust the monitor's brightness and/ or contrast settings found in the OSD's

"Picture" menu�

ML12E User Manual, October 2015

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Troubleshooting

Touch Screen Troubleshooting

Applies to touch screen monitors only� To be sure that you have the most current driver, please check the following Internet address: http://www�HopeIndustrial�com/Touchscreen_Drivers�htm

Symptom

No response when touching the touch screen

The cursor moves but does not follow my finger when touching the touch screen

Causes

Touch screen driver has not been installed�

Touch screen cable is not plugged in correctly.

If using a USB connection, does the USB cable length exceed 3 meters?

If using a Serial connection, is the Serial cable plugged into the correct COM port?

Touch screen driver has not been installed�

Touch screen has not been calibrated�

Solutions

Download and install the latest driver from the Hope Industrial website�

Make sure either the USB or Serial cable is securely connected to the monitor and PC� Do not connect both�

USB cables have a 3 meter limitation and could cause no touch response if this is exceeded�

Ensure that the Serial cable is connected to the COM port being used prior to installing the touch screen driver�

Download and install the latest driver from the Hope Industrial website�

Activate the calibration utility� In

Windows systems, these settings may be found at the following location:

Control Panel > Elo Touchscreen >

"General" Tab

• Press the Align button.

• Touch all targets as the appear to calibrate the touch screen�

• Press the Green Check button when verified.

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ML12E User Manual, October 2015