When a centering control reaches its minimum or maximum limit, the LCD displays MIN or MAX on the line below
Once the centering controls are no longer active, the centering settings are saved, and the LCD displays the current scan rates.
If DIP switch 1 (DDSP) on the rear panel is set to On (right) and a centering control is rotated, the LCD displays N/A DDSP ON, and the image does not shift on screen.
Troubleshooting
Turn on the input device (computer, audio device) and output device(s) (projector, monitors, speakers) and plug in the interface’s AC power cord. The image should now appear on the screen, and sound should be audible.
If the image does not appear or there is no sound
1. Ensure that all devices are plugged in.
2. Make sure that each device is receiving power. The interface’s front panel LED lights if the interface is receiving power and an active sync signal.
3. Check the cabling and the audio connector wiring and grounding, and make adjustments as needed.
4. For digital display devices (including LCD, DLP and plasma devices), try turning DIP switch 1 (DDSP) On (up) or Off (down) on the rear panel.
5. To test the system setup and output, substitute a stand- alone video test generator (VTG) for the computer input. Unplug the power cords to the input and output devices and the interface, replace the video source with a VTG, then reconnect power cords to restore AC power.
6. Call the Extron S3 Sales & Technical Support Hotline if needed.
If the image is not displayed correctly
1. If the output image looks too green, the sync on green (SOG) DIP switch (switch 2) may be set to On (up), and the display device may not be configured to handle SOG signals. Set the switch to Off (down).
2. If the picture bends or flags at the top of the screen, set the serration pulse DIP switch (switch 3) to Off (down).
3. For a display device that experiences intermittent glitches, try turning DDSP On (up) or Off (down) using DIP switch 1 on the rear panel.