Kontron EPIC/CE, User Manual

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11 Graphics Interfaces
Kontron User's Guide EPIC/CE 36
11.5 Display Power Considerations
When using a LCD Panel, additional voltages may be required to drive the display’s logic and to supply
the backlight converter and the contrast voltage.
The display logic may r5V for standard or +3.3V for low-power LCDs. Contrast voltages for passive
displays are normally very different and can range from –30V to +30V. Backlight converters usually are
+5V or +12V types. When using a Kontron JILI cable, you do not need to determine the configuration.
Display logic voltage and contrast voltage come pre-configured on the JILI cable. On occasion, the
backlight voltage has to be adjusted on the cable.
Even though the EPIC/CE also is available as a +5V-only board, you need to supply the +12V for the
backlight converter when using such a converter type.
The onboard 3.3V-circuitry of the EPIC/CE and the +3.3V logic voltage of low-voltage panels are powered
by separate voltage regulators. The one for the LCD is mounted on the JILI adapter cable.
11.6 Connecting a LCD Panel
To determine whether your panel display is supported, check the Kontron Web site for panel lists. We
regularly update the list of panels that have been tested with our boards.
Many panel adapters for a wide spread variety of displays are available through Kontron. If you use one
of those adapters supplied by Kontron, configuration is easy:
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Check whether you have the correct adapter and cable for the panel you plan to use.
Inspect the cable for damages.
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Disconnect the power from your system.
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Connect the panel adapter to the LCD Panel connector (JILI) on the EPIC/CE.
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Connect the other end of the cable to your display.
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Connect the backlight converter.
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Supply power to your system.
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If no image appears on your display, connect a CRT monitor to the CRT connector.
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If necessary program the EEPROM on the JILI cable with the matching configuration
data.
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If you still do not see improvement, consider contacting the dealer for technical
support.