Peavey PV 2015 D Manuel D'utilisation page 21

Use of high-quality, premium cables is recommended for the PV 2015D, as these usually have better shielding
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and materials and will provide greater long-term reliability. It is usually a good idea to leave some slack at
the input to the PV 2015D and also to tape down the cables or run them under a cable guard to avoid anyone
tripping over them or pulling the PV 2015D over when stand mounted.
Level Control Adjustment
The PV 2015D is equipped with a level control (5) to facilitate use in many different applications. With the level
control adjusted fully clockwise, gain is at maximum and the input sensitivity is 0.650 V RMS for full-rated
output. When driving the PV 2015D from a mixer, it may be advantageous to reduce the input sensitivity by
turning the level control to the halfway point or even less. The PV 2015D will now more closely match the
sensitivity of a typical power amp.
If the mixing board indicates clipping of its output signals, then all of the PV 2015D power capability is not being
utilized cleanly. Clipping the signal before it gets to the PV 2015D is not optimal. Reduce the mixer output level
and turn up the level control on the PV 2015D.
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The amplifier in the PV 2015D is equipped with DDT and an LED indicator to show that DDT has engaged. If the
sound seems heavily compressed, check this indicator; if it is blinking RED more than occasionally, then the
drive level from the mixer (or the level control on the PV 2015D) needs to be reduced.
When first turning on the sound system, switch on all upstream electronics first, then the PV 2015D with its level
control fully counterclockwise (all the way down). Begin checking levels with the mixer output level controls all
the way down, and bring them up slowly with the PV 2015D level control set to the desired setting (one-third of
the way up is recommended as a starting point).
Use of the PV 2015D with a powered Subwoofer
Powered subwoofers often have a built-in electronic crossover to allow a high-pass filtered signal (lows rolled
off ) to be sent to the upper range speaker. The PV 118D Sub is such a subwoofer. When using the PV 2015D with
this type of powered subwoofer, first run the signal from the mixer or signal source to the powered sub input,
then come out of the combo jack labeled "THRU/HPF" and send that signal to the PV 2015D input jack. On the
PV 118D Sub, the button to the far left labeled THRU/HPF should be pushed in to engage the high-pass filter
(HPF). On other powered subwoofers, if they have a similar high-pass filter function, then send the signal in and
out of the subwoofer according to the manufacturer's instructions, which should be similar to the instructions
as outlined above.
TROUBLESHOOTING
No Output at All
First, make sure the unit has AC power and is turned ON. Make sure the Power/Clip LED (8) is illuminated
Green. If not, make certain the ON/OFF switch (3) is in the ON position and check the IEC power cord connection
(2) by ensuring it is fully engaged and seated. Make certain the AC line cord is plugged into a working AC outlet.
Finally, check the fuse (2a). (See the Rear Panel: Fuse section, for safety instructions.)
Once assured your unit is getting AC power, check that the PV 2015D is getting a signal. Temporarily disconnect
the cable running to its inputs and connect it to some other device capable of reproducing the signal (i.e., a
power amp and speaker). If this produces a signal, make sure that all Volume controls being used have been
turned up to a satisfactory level (one-third to halfway).
If the PV 2015D has been subjected to direct sunlight or excessive heat, the built-in thermal protection may
have been triggered. The power/clip LED will be illuminated RED if this is the case. If so, turn off the PV 2015D
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and let it cool for a sufficient amount of time.
If there is still no output, contact your authorized Peavey dealer or the Peavey International Service Center.
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Hum or Buzz
If the PV 2015D is producing a hum or buzz, this can be AC outlet related. Try plugging the PV 2015D into a
different AC outlet. Sometimes, if a different AC power circuit (breaker) is used for the mixer and the PV 2015D,
it can cause hum problems.
Ensure that shielded cables have been used to route the signal to the PV 2015D enclosure's inputs. If speaker
cables with 1/4" plugs are used as input cables instead of shielded cables, they will be prone to hum or buzz.