User Manual

14
4.1 Troubleshooting
4.1 Troubleshooting
No power. First ensure that your R65/R80 is plugged in. If
it’s connected to a power conditioner, verify that the power
conditioner is turned on and functioning. If so, yet there is
still no power to the monitor, contact PreSonus for a repair.
No audio. If your R65/R80 appears to power on but you
hear no sound when playing audio from the source signal
(the lights are on but nobody’s home), first make sure that
the cable connecting the source signal 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 DI (direct-injection) 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.
4.2. Warranty
PreSonus’s warranty obligations for this hardware
product are limited to the terms set forth below:
How Consumer Law Relates To This Warranty:
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU
MAY HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE
(OR BY COUNTRY OR PROVINCE). OTHER THAN AS PERMITTED
BY LAW, PRESONUS DOES NOT EXCLUDE, LIMIT OR SUSPEND
OTHER RIGHTS YOU MAY HAVE, INCLUDING THOSE THAT MAY
ARISE FROM THE NONCONFORMITY OF A SALES CONTRACT.
FOR A FULL UNDERSTANDING OF YOUR RIGHTS YOU SHOULD
CONSULT THE LAWS OF YOUR COUNTRY PROVINCE OR STATE.