Extron electronics IN1404, Руководство пользователя

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IN1404 User’s Manual 34
Troubleshooting
Problem: There is no image on the display device.
Solution 1 : Make sure that the IEC power cable is securely plugged into the unit and the
A/C source.
Solution 2 : Make sure the A/C source is live.
Solution 3 : Verify that the power switch is turned on for the video source, the IN1404 and the
monitor.
Solution 4 : Verify the connection from the video source. Refer to Installation on page 4 to
learn how to connect different signals to the rear panel.
Solution 5 : Verify the connection to the output display device. Even with no input signal, the
IN1404 menu can be displayed. Press MENU or ENTER to gain access to the menu
screen.
Solution 6
: Select an output resolution and refresh rate compatible with the display device being
used. Use the default power-up buttons to select an output mode without the menu
present, and then turn on the blue screen to verify these settings.
Solution 7 : The output resolution may be less that the input (the IN1404 can only scale up).
Select an output resolution that is greater than or equal to the input active area.
Solution 8 : The display device may not accept certain sync formats. Verify the display device
sync capability and select the IN1404 output sync using the power-up default
buttons.
Solution 9 : The input/output settings may be incorrect. Although the unit should not allow
invalid settings, they may need to be reloaded. If the menu is available, select Input,
Advanced, Input Mode and Redetect Now to reload these settings.
Solution 10 : The Input Mode may have changed with Lockout Changes enabled. Select Input,
Advanced, Input Mode, and Redetect Now to setup the new Input Mode.
Solution 11 : The input signal format may not be set correctly. Select Input, followed by Signal
Format. Verify that each input has the correct signal format setting.
Problem: There is no audio output.
Solution 1 : Verify that power is present and that the power switch is turned on for the audio
source, the IN1404 and the amplifier/speakers.
Solution 2
: Verify that the audio source is connected to the correct input and that the source
volume has not been turned down or muted.
Solution 3 : The audio output of the IN1404 is line level audio only . It should be connected to a
mixer/amplifier or to amplified “computer type” speakers.
Solution 4 : Increase the volume using the volume UP button.
Solution 5 : The mute may be activated. Press MUTE to deactivate the function.
Problem: The input source cannot be changed.
Solution : Auto Switching may be turned on. Turn Auto Switching off to return input control to
the front panel and RS-232.
Problem: The on screen menu does not appear.
Solution : The On Screen Menu is not available for RGB passive signals. To deselect the RGB
Passive Mode refer to Pass-through RGB video on page 22.