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Extender Series • Installation
Installation, cont’d
2-16
PRELIMINARY
Pre-installation testing/troubleshooting
Before mounting the line driver, test the system to make sure
that the connections and settings are correct.
1. Apply power to the line driver. The power/signal LED on
the line driver lights amber to indicate that it is receiving
power.
2. If the LED does not light, check the wiring at both the line
driver and the power supply, and make sure the power
supply is connected to a power source.
If the image does not appear or there is no sound
1. Make sure that all the devices are powered on.
2. Ensure that the connectors are wired correctly at both
ends of the cables. Audio cables must be wired for an
unbalanced stereo input signal and for the appropriate
(unbalanced or balanced) output signal.
3. If the input is from a laptop computer and no picture
appears, use a laptop breakout cable for the input
connection. Check the computer’s user’s guide or contact
Extron to determine if special commands are required
to output video to the external video port. Also, many
laptops’ screens shut off after the external video port is
activated.
4. Call the Extron S3 Sales and Technical Support Hotline if
the image still does not appear or there is no sound.
If the image is not displayed correctly
1. If the picture is too bright or too dark, if the edges of the
image seem to exceed their boundaries, or if thin lines and
sharp edges look thick and fuzzy, change the gain setting.
See “Gain switch” on page 2-12.
If the picture appears and is stable, but it has ghosting
or blooming, verify that the video input is properly
terminated. If the problem is not resolved by changing the
termination, try using a different input cable. Poor quality
or damaged cable can cause ghosting and blooming.
2. If the picture still is not displayed correctly, call the Extron
S3 Sales and Technical Support Hotline.
Once the system has been cabled and tested, the line driver can
be installed in the wall, furniture, or equipment.