Troubleshooting - Peavey Messenger Serie Betriebsanleitung

TROUBLESHOOTING

NO OUTPUT AT ALL
Check that the unit has AC power and is turned ON. Ensure the blue power indicator LED behind the grille is
illuminated. 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 (1). (See the Rear Panel: Fuse section, for safety instructions.)
Once assured your unit is receiving AC power, check that the PRO™ Sub P 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 Level controls being used have been
turned up to one-third to halfway).
If the PRO™ Sub P has been subjected to direct sunlight or excessive heat, the built-in thermal protection may
have been triggered. The protection LED will be illuminated RED if this is the case. If so, turn off the PRO™ Sub P
and let it cool for a sufficient amount of time.
If there is still no output, contact your authorised Peavey dealer or the Peavey Service Centre.
HUM OR BUZZ
If the PRO™ Sub P is producing a hum or buzz, it could be AC outlet related. Try plugging the PRO™ Sub P into a
different AC outlet. Sometimes, if a different circuit (breaker) is used for the mixer and the PRO™ Sub P, it can
cause hum problems.
Ensure that shielded cables have been used to route the signal to the PRO™ Sub Ps inputs. If speaker cables
with 1/4" plugs are used as input cables instead of shielded cables, it will be prone to hum or buzz.
Hum may be ground loop related. Try lifting the ground connection at the speaker end of the balanced signal cable.
Check any input changes carefully by first turning down the level control, plugging and unplugging cables, or lifting
the shield ground at the speaker end.
Check to make sure light dimmers are not on the same circuit as the PRO™ Sub P, the mixer or any source
devices. If light dimmers are used, it may be necessary to turn them full ON or full OFF to eliminate or
reduce hum. This is a typical AC wiring/light dimmer interference problem and not a design flaw of the Pro Sub P.
The third wire (ground plug) on the AC plug should NEVER be removed or broken off.
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