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GT Series Troubleshooting Guide

Last modified on January 9th, 2019.

This guide shows solutions to frequently asked questions and common problems that users may encounter while using Noritake GT series modules. If your problem is not addressed on this page, please fill out the contact form on the bottom of this page or call your local Noritake sales representative for support.

Common Problems

GT-1P Series

  1. Problem: The display will not power up.

    • Possible Cause

      The power connector might not be plugged in. This module does not support power over USB.

      • Solution

        Plug a proper power connector into CN7 (GT800X480A-1303P) or CN2 (GT1280X800A-1303P) .

  2. Problem: The right-side of the display doesn’t show up.

    • Possible Cause

      The host controller doesn’t support Extended Display Identification Data (EDID).
      Or, the configuration file may specify a different screen resolution.

      • Solution

        If the video signal is not displaying correctly when using a Raspberry Pi or similar single board computer, please add this configuration line to the board’s config.txt file.
        hdmi_cvt 800 480 60 6 0 0 0
        Upon reboot, the video signal will change to fit the display’s resolution.

  3. Problem: The display doesn’t show anything.

    • Possible Cause

      The DVI protocol may not have established a connection with the display module.

      • Solution

        Cycle power on the GT-1P display module.

GT-CP Series

  1. Problem: The display will not power up.

    • Possible Cause

      The power connector might not be plugged in. This module does not support power over USB when JP1 is open.

      • Solution

        Plug a proper power connector.

  2. Problem: Noritake GU-TFT (V-COM) communication driver does not respond.

    • Possible Cause

      This can happen when using different GT-CP modules with the V-COM driver. The driver may not see that a different GT-CP module has been connected.

      • Solution

        Reset the communication port mapping using GTOP with “Tool > Reset VCOM Mapping”.

      • Solution

        Reset the communication port mapping using the “reset_vcom_usb_mapping.bat” found at “C:\Program Files (x86)\Noritake Itron\USB_VCOM_drivers”.

    • Possible Cause

      If VCOM driver has just been installed. The host PC may need to be restarted.

      • Solution

        Restart the host PC.

GT-EP Series

  1. Problem: The display will not power up.

    • Possible Cause

      The power connector might not be plugged in. This module does not support power over USB. (the GT480X272A-E100P can support power over USB if J26 is closed)

      • Solution

        Plug a proper power connector.

  2. Problem: I can’t run the demo program on the display module.

    • Possible Cause

      The demo program may be configured for a different display.

      • Solution

        Check the name of the demo program. tw800a.mnu is compatible with GT800X480A-E100P and tw480a.mnu is compatible with GT480X272A-E100P.

  3. Problem: My GT-EP module does not show up in the iDevTFT device list.

    • Possible Cause

      The module driver has not been installed.

      • Solution

        In iDevTFT, click on “USB Transfer > Install USB Driver” to install the driver. You may need to restart your PC before the driver is properly configured.

  • How can we help you?

    If you have any questions, please call us directly or send us an email and a member of our sales team will contact you as soon as possible.

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