Peavey Impulse 1015P operation manual Applications, Troubleshooting, Hum or Buzz

APPLICATIONS

The Impulse 1015P has a variety of applications such as sound reinforcement, public address, side fill system or playback. With the optional monitor stand kit, the Impulse 1015P makes an excellent stage monitor. The Impulse 1015P can be used presentations or karaoke by using the mic input and regular line level inputs in conjunction with one another.

A typical signal source for the line level inputs (5) of the Impulse 1015P would be a sound reinforcement mixing console (mixer) or the output from a CD player, Minidisc player or tape deck.

TROUBLESHOOTING

No output at all

First, make sure the unit has AC power and is turned on. If so, the Power LED (4) should be illuminated. If it is not, check that the On-Off switch (3) is in the ON position and check the IEC power cord connection (2) to make sure it’s fully engaged and seated. Make sure the AC line cord is plugged into a working AC outlet and check the circuit breaker (1) {see the REAR PANEL/Circuit Breaker section for safety instructions}.

Then, make sure the Impulse 1015P’s inputs are getting a signal by running a the cable from the inputs to some other device capable of determining this (for example, a power amp and speaker).

If there is still no output, then be sure the volume control has been turned up to a reasonable level (one-third to halfway).

Has the Impulse 1015P been in direct sunlight or excessive heat? If so, it may have triggered the thermal protection. Turn off the unit and cool as best as the situation allows (DO NOT use liquids for this purpose!).

If there is still no output, it may help to read the owner’s manual completely.

Hum or Buzz

As this can be AC outlet-related, try plugging the Impulse 1015P into a different AC outlet. Sometimes, if the mixer and the Impulse 1015P, are plugged into different circuits (breakers) it can cause hum problems.

Make sure the microphone input (8) is disengaged if not in use, by checking the Mic On switch (7). It should be in the OFF position.

Check to make sure that shielded cables have been used to get the signal to the Impulse 1015P’s inputs. Speaker cables with 1/4" or XLR plugs are very prone to hum.

Check to make sure light dimmers are not on the same circuit as the Impulse 1015P or the mixer (or any source devices). If light dimmers are in use, then it may be necessary to turn them full on or full off to eliminate or reduce hum to tolerable levels. This is an AC wiring/light dimmer interference problem, and not the fault of the Impulse 1015P. The third wire ground plug on the AC plug should NEVER be removed or broken off, as this seriously compromises safety.

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