Peavey PROGRAMMABLE EFFECTS PROCESSOR 4000 Operating Manual page 5

The PEP 4000 isa MIDI slave device only; itis not intended to control other MIDI-compatible devices. The internal microproces-
sor can receive information on MIDI channels 1 through 8, and will select any of the ten stored programs in response to commands
MIDI Preset Select 1 through MIDI Preset Select 10. MIDI Preset Select 16 will enable the Bypass function. Any other codes will be
ignored by the internal microprocessor.
SIGNAL INPUT JACK (AA)
This jack is a stereo 14" phone jack capable of receiving either single-ended (mono) or differential (balanced) input signals to the
PEP 4000. When balanced signal is to be supplied, (+) signal should be routed to the tip, (-) signal to the ring.
The sensitivity of the jack is controlled with the Input Level switch (BB) on the rear panel and the Input Level control (A) on the
front panel.
INPUT LEVEL SWITCH (BB)
This pushbutton switch selects the input signal sensitivity range for the PEP 4000. With the button in the "out" position, the
sensitivity is set at a nominal -20 dBM, consistent with most instrument level signal sources. The "in" position corresponds to a
nominal sensitivity of +0 dBM, consistent with most line level signal sources. The position of the Input Level switch is largely
determined by the output signal level of the instrument or device providing the signal.
HOLD/BYPASS FOOTSWITCH JACK (CC)
This jack is a stereo %" phone jack for an optional dual-button momentary footswitch. The actions of this footswitch are identical
to the actions of the Hold Control key (R) and Pass Control key (S) on the front panel. An optional dual-button momentary
footswitch (#0005067) is available from your authorized Peavey dealer.
LINE CORD (DD)
For your safety, the PEP 4000 incorporates a three-wire AC (mains) cable with proper grounding facilities. Do not remove the
ground pin under any circumstances. If it is necessary to use the processor without proper grounding facilities, a suitable
grounding adaptor should be used. Much less noise and greatly reduced shock hazard exist when the unitis operated with properly
grounded receptacles.
FUNCTIONAL OPERATION GUIDE
The following is a description of the procedures for setting up the PEP 4000 for any of its operational modes.
GENERAL PRELIMINARY SETUP
Plug the unit into a 120 volt/60 Hz power source (domestic version).
Turn on the unit
During the first few seconds of power-up, adjust the Input Level control (A) to obtain the necessary MIDI receive channel
displayed on the numerical display.
Plug the signal source into the Signal Input jack (AA) on the rear panel.
Select the appropriate operating level with the Input Level switch (BB). For instrument level operation, use the +0 dBM setting.
Plug the signal return unit into one of the Stereo Chorus Output jacks (U) on the rear panel. If two returns or two amplifiers are
to be used to obtain a pseudo-stereo chorus effect, use both output jacks.
Apply an input signal with the highest expected level and adjust the Input Level control (A) so that the Limit LED (C) flashes
occasionally.
Adjust the Output Level control (W) on the rear panel to obtain the necessary signal level out to drive the return unit as desired
Connect any footswitches or MIDI interfaces to be used.
. Set the unit up for the desired effect by referring to this manual
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TO SET UP AN EFFECT PROGRAM
1. Perform the setup procedures as described above.
2. Adjust the front panel controls to obtain the desired effect by referring to the descriptions for each of the controls listed in this
manual. Any control may be adjusted at any time to alter an existing effect or to create a new effect. Controls which will
"override" an existing effect include:
a, New preset selection
b. Sync operation
c. Hold function
d. Bypass function
TO RECALL A PROGRAM PRESET
1. Select the desired bank via the Bank A/B Select key (L).
2. Press the desired Program key (M) momentarily and release. Depressing the key for less than 3 seconds will recall the desired
program preset
3. Alternately, the program preset may be recalled via the MIDI In socket on the rear panel
TO STORE A PROGRAM PRESET
1. Set up the desired effect as described above.
2. Select the desired bank via the Bank A/B Select key (L).
3. Depress the desired Program key (M) and hold it in until the associated LED indicator STOPS flashing. This should take
approximately 3 seconds.