Peavey DPE 2P, Руководство по эксплуатации, Страница: 9 / 16

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 DPE 2P-4P Gain control/s set to the desired setting (one-third of the way up is recommended to
start).
It is not good practice to turn the Gain control(s) on the DPE 2P-4P all the way up and then try to control level only from the
mixer, as this approach would tend to pick up excess noise. The best practice would be to run a "hot" signal from the mixer
down the cable to the DPE 2P-4P, and then turn the DPE 2P-4P Gain control up only as much as necessary to reach full desired
output. With this approach, it is necessary to verify the mixer output is not clipping.
If a particular input channel is unused, the best practice is to turn the Gain knob all the way down, or fully counter-clockwise.
This minimizes any possible noise pick-up from the unused channel.
MIC/LINE SWITCH ADJUSTMENT
The mic/line switch (6,7) provides for the increased gain needed for microphone use into the two inputs.
Set the Mic/Line switch to "out" for line-level signal use and set it "in" for mic-level use. The associated LED indicator (11,12) which is
located up and to the right of the switch, will glow green for a line-level setting, and yellow for a mic level setting.
The unit is normally shipped with the button in the line-level or "out" position. However, before each use it is a good idea to
check for the proper position of the switch, as it could be toggled inadvertently during transport or set-up.
Due to the 30 dB of extra gain that this switch provides, DO NOT leave it in the "in" position for line-level input signal use!
This could result in input-stage clipping of the DPE 2P-4P and cause unnecessary distortion.
DISCONNECTING AC POWER TO THE DPE 2P-4P
We recommend that the Power switch (3) be used to turn the unit off first, and then the AC power cord can be removed. This
minimizes stress to the power amplifiers and the transducers from turn-off transients. The power switch has an arc suppression
capacitor to help during turn-off and tends to make a clean disconnect from the AC power, while the power cord IEC connector
can make intermittent contact before finally becoming fully disconnected, e.g., as when wiggling the cord.
TROUBLESHOOTING
NO OUTPUT AT ALL
First, make sure the unit has AC power and is turned ON. Make sure the various LED’s on the inputs of the power amp module
are illuminated (11 and 12 will always be illuminated either red or green).
If not, make certain the ON/OFF switch (1) is in the ON position and check the IEC power cord connection (3) by ensuring it
is fully engaged and seated. Make certain the AC line cord is plugged into a working AC outlet.
Finally, check the circuit breaker (2). (See the Rear Panel: circuit breaker section for safety instructions.)
Once assured your unit is getting AC power, check that the DPE
™
2P-4P 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 Gain controls (13) being used have been turned up to a satisfactory level (one-third to
halfway).
If the DPE 2P-4P has been subjected to direct sunlight or excessive heat, the built-in thermal protection may have been
triggered. If so, turn off the DPE 2P-4P 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.
HUM OR BUZZ
If the DPE 2P-4P is producing a hum or buzz, the problem could be AC outlet related. Try plugging the DPE 2P-4P into a
different AC outlet. If a different circuit (breaker) is used for the mixer and for the DPE 2P-4P, it can sometimes cause hum
problems. Unless it is not practical, it is best to use the same wall outlet (breaker) to supply power to both the mixer and the
powered speaker.
Ensure that shielded cables have been used to route the signal to the DPE 2P-4P'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.