Troubleshooting
This section may help you isolate a problem and as a result, eliminate the need to contact technical support, allowing continued productivity.
No picture
If the Uindicator is not lit
mCheck that the power cord is properly connected.
mCheck that the Uswitch is in the “on” position.
If the “NO INPUT SIGNAL” message appears on the screen, or if the U indicator is either orange or alternating between green and orange
mTry pressing any key on the computer keyboard.
mCheck that your computer power switch is in the “on” position.
mCheck that the video signal cable is properly connected and all plugs are firmly seated in their sockets.
mEnsure that no pins are bent or pushed in the HD15 video input connector.
If the “OUT OF SCAN RANGE” message appears on the screen
mCheck that the video frequency is within that specified for the display. Horizontal: 30 – 70 kHz
Vertical: 50 – 120 Hz
Refer to your computer’s instruction manual to adjust the video frequency range.
mIf you are using a video signal cable adapter, check that it is the correct one.
If no message is displayed and the Uindicator is green or flashing orange
mSee
No sound from speaker
If the ¤indicator is displayed
mPress the ¤button to cancel muting.
mCheck that the audio plug is properly connected.
mAdjust the volume with .+/– buttons.
mCheck that the headphones are not connected.
mCheck the volume control, muting, sound selector, etc. of the sound board. (See the computer’s manual.)
Microphone mixing is not possible
mCheck that the MIC plug is properly connected.
mCheck the microphone control, sound selector, etc. of the sound board. (See the computer’s manual.)
Continued to the next page ➔
Troubleshooting 37