Peavey PV 118 D, Руководство по эксплуатации

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TROUBLESHOOTING
No Output at All
First, make sure the unit has AC power and is turned ON. Make sure the Power/Clip LED (4) 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 (1). (See the Rear Panel: Fuse section, for safety instructions.) Once assured your unit is getting
AC power, check that the PV 118D 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 118D 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 118D 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 PV 118D is producing a hum or buzz, this can be AC outlet related. Try plugging the PV 118D into a different AC
outlet. Sometimes, if a different circuit (breaker) is used for the mixer and the PV 118D, it can cause hum problems.
Ensure that shielded cables have been used to route the signal to the PV 118Ds 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. Hum may be ground loop
related. It will be helpful to lift the shield ground on a balanced cable at the PV 118D end only by using the ground
lift switch (4). Check any input changes carefully by first turning down the volume 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 PV 118D, the mixer or any source devices. If light
dimmers are used, then 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, not a design flaw of the PV 118D.
The third wire (ground plug) on the AC plug should NEVER be removed or broken off.
Distorted or Fuzzy Sound
First, ensure the mixer (signal source) is not clipping or being overdriven. Make sure the volume control/s (7) and (9)
on the PV 118D have not been set too low.
Check that the input plugs are fully seated in the input jacks (5) and (8) on the rear panel of the PV 118D. Ensure that
the proper MIC/LI NE PAD setting is being used (6) for line-level signals, or that a power amp has not been plugged
into one of the input jacks of the PV 118D.
If an extension cord is being used to provide the AC power to the unit, ensure that it is of sufficient current capacity
and that it is not also being used to supply power to any other device.
Finally, realize that even though the PV 118D is a powerful and high output unit, it does ultimately have Limits. In this
case, try turning the mixer levels down a little to see if that clears things up. If, after checking all the things listed
to check and anything else you can think of to check safely, and the system still exhibits problems, carefully note all
conditions and check with your Peavey dealer for advice.
Care and Maintenance
Your PV 118D is a sturdy and durable product and will provide years of reliable use if properly cared for. Use common
sense and read the safety warnings to avoid hazardous operating conditions. The unit must be disconnected from the
AC power source before any work is done on it. Refer all servicing to qualified service personnel.
Sunlight/Heat
Avoid prolonged exposure to direct sunlight, as this may cause the unit to overheat and thermally shut off. Excessively
hot operating conditions can also cause a thermal shutdown. Do not store in extremely hot or cold conditions or
extremely high humidity. Always allow unit to come to room temperature before use.