Owners Manual

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4 Resources
4.2 Troubleshooting
Eris XT-Series E5 XT / E7 XT / E8 XT
Owners Manual
4.2 Troubleshooting
No Power. First ensure that your Eris XT studio monitor is plugged in. If
it’s connected to a power conditioner, verify that the power conditioner
is turned on and functioning. If problem still exists, disconnect the power
cable from your studio monitor and check the fuse on the back panel.
The fuse housing is located directly beneath the IEC power cable connection. A
blown fuse may look black on the inside or the wire inside might appear broken.
A very black fuse is a sign that something may have shorted out. Try replacing
the fuse with a new one. The E5XT uses a T1L fuse. The Eris E7XT and E8XT use a
T2L fuse. If the fuse blows again, you will need to contact PreSonus for a repair.
No audio. If your Eris XT studio monitor appears to power on but you
hear no sound when playing audio from your audio source (the lights are
on but nobodys home), first make sure that the cable connecting your
audio source to the monitor is working correctly. Also, verify that the
Input Gain control is set to provide enough amplitude for the signal.
Hum. Usually, hum is caused by a ground loop. Verify that all audio equipment is
connected to the same power source. If you are not using a power conditioner,
we highly recommend that you add one. Not only will this help to minimize
hum, it will better protect your equipment from power surges, brownouts, etc.
Use balanced cables whenever possible. If your audio device does not offer
a balanced output, you can connect it to a direct box, which will provide a
ground-lift switch and a balanced output. Finally, make sure that your audio
cables are not run near power cables, and use cables that are the appropriate
length for your application. Using cables that are too long not only increases
the risk of noise, it increases the likelihood that the cables are coiled, which will
essentially create an antenna that picks up all kinds of audio interference.