Lexicon JAM MAN User manual

User Guide

Lexicon Part #070-09276 Printed in the U.S.A.
Unpacking and Inspection
After unpacking the unit, save all packing materials in case you ever need to re-ship. Thoroughly inspect the unit and packing materials for signs of damage.
Report any shipment damage to the carrier at once; report equipment malfunction to your dealer.
This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instructions, may cause
interference to radio and television reception. It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in
Subpart J of Part 15 of FCC Rules, which are designated to provide reasonable protection against such interference in a residential installation. However, there is no guarantee
thatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipment
OFF and ON, the user is encouraged to try to correct the interference by one or more of the following measures: reorient the receiving antenna; relocate the computer with respect
to the receiver; move the computer away from the receiver; plug the computer into a different outlet so that the computer and receiver are on different branch circuits. If necessary,
the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet prepared by the Federal
Communications Commission helpful: "How to identify and Resolve Radio/TV Interference Problems." This booklet is available from the U.S. Government Printing Office,
Washington, DC 20402, Stock No. 004-000-00345-4.
Notice
Lexicon Inc.
3 Oak Park
Bedford, MA 01730 USA
Telephone [phone]
Fax [phone]
Copyright 1993, Lexicon Inc.
All Rights Reserved.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This triangle, which appears on your com-
ponent, alerts you to the presence of unin-
sulated, dangerous voltage inside the en-
closure... voltage that may be sufficient to
constitute a risk of shock.
Thistriangle,whichappearsonyour com-
ponent, alerts you to important operating
and maintenance instructions in this ac-
companying literature.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class B prescrites dans le Règlement sur
le brouillage radioélectrique édicté par le ministère des Communications du Canada.

User GuideUser Guide

Loop Mode........................................................................... 15
Basic Looping...............................................................16
Punch In Loop ..............................................................16
Make a loop .............................................................17
Add layers of sound to your loop .............................17
Replace a portion of your loop .................................17
Mute .........................................................................17
Cue the next function ...............................................17
Playing with multiple loops.......................................18
Things to keep in mind.............................................19
Phrased Loops .............................................................19
Using MIDI Clock..........................................................20
Control the tempo of another device........................20
Let another device determine JamMan's loop size..21
Adding Memory ...................................................................... 22
MIDI Implementation .............................................................. 24
MIDI Implementation Notes ................................................. 26
MIDI Fade.....................................................................27
MIDI Asynchronous Stop/Start .....................................27
Specifications......................................................................... 28
Getting Started ......................................................................... 1
Introduction............................................................................ 1
Front Panel Overview ............................................................ 2
Setting Audio Levels.......................................................3
Rear Panel Connections........................................................ 4
Audio Connections .........................................................5
Headphones ...................................................................5
Footswitches ..................................................................5
Modes of Operation ................................................................. 6
Echo Mode ............................................................................ 7
Basic Echo .....................................................................8
Change the echo rate.....................................................9
Varying the rhythm .........................................................9
More about
ECHO mode.............................................10
Sample Mode ...................................................................... 11
Basic Sampling.............................................................12
Manually-triggered samples .........................................13
Backward sample play .................................................13
Audio-triggered playback..............................................13
Audio-triggerred record ................................................14
More about
SAMPLE mode..........................................14
Table of Contents

Getting Started
1
Introduction
Congratulations on your purchase of
JamMan. You now possess a unique new
delay device which we believe will become
not only an indispensable tool in your setup
—but also a new musical instrument. We're
certainthat,onceyoubegintorealizethefull
capabilities of JamMan —whether you're
composing,performing, teaching,or mixing,
your music will never be the same.
Cleverly concealed behind JamMan's
deceptively simple front panel, are really
three unique effects boxes: a tap-tempo
echo, a sampler, and a looping device.
Each of these offers features which are
unavailableanywhereelse—andallofthem
are designed to free you from programming.
JamMan lets
your tempo set the pace for
echo rates, loop lengths, or samples. It can
even control other equipment, such as se-
quencers and drum machines, via MIDI.
With 8 seconds of memory, a footswitch
provided for hands-off control of tempo and
resetfunctions,andcompleteremotecontrol
viaMIDI,JamManreallyletsyoutapintoyour
creativity.
Want more?
A second, optional footswitch allows
completefootswitchcontrolofallofthefunc-
tions available within any JamMan mode.
If you want more memory, you can up-
gradeJamManatanytimefrom8secondsto
32 seconds. Complete instructions for add-
ing memory are given in the manual.
To make sure you get the most out of
JamMan, be sure to read the manual.

INPUT
Setsthelevel of the incoming
signal. Status LED indicates
acceptable signal level
(green), or overload (red).
OUTPUT
Controls the output level.
MODE
Allows selection of three basic modes:
ECHO , SAMPLE or LOOP ( PUNCH-IN or
PHRASED ).
When the unit is being used with an external
MIDI Clock, this knob allows selection of loop
size —expressed in MIDI quarter-notes (3
beats/loop, 4 beats/loop, etc.)
Front Panel Overview
FUNCTION
Selects the function assigned to TAP and lights the
corresponding LED (MUTE, LAYER or REPLACE).
A blinking LED indicates function is selected and
cued to be activated by next TAP. LEDs can also
indicate selected echo rhythm.
MIX
Controls the proportion of processed
(wet) to unprocessed (dry) signals.
TEMPO
Depending on the mode of operation,
LED blinks at the current tempo, or lights
during sample record and play.
TAP
Enters timing information. Two
pushes define a tempo. Also toggles
the selected function on/off.
SELECT
Depending on the mode of operation,
selects feedback level, audio trigger
threshold, or selects a loop.
DISPLAY
Significanceof symbolsvaries withmode of
operation. Plus (+) and minus (-) symbols,
numeric display of digits 0-16, and decimal
pointprovidevisualfeedbackineachmode.
2
RESET/BYPASS
Depending on the mode of
operation, RESET resets the
unit; BYPASS toggles muting.
OUTPUTMIXINPUT
TEMPO
MUTE/
LAYER/
REPLACE/
FUNCTIONRESET/BYPASS
PUNCH IN
LOOP PHRASED LOOP
3
4
6
8
12
16
24
MIDI
DRY WET
SELECT TAP
ECHO
SAMPLE
3
4
6
8
12
16
24
MIDI

Setting Audio Levels
1. Turn the Mode knob to ECHO .
2. Turn INPUT and OUTPUT all the way
down (fully counter-clockwise).
3. Set the instrument output or effects send
beinginputtoJamMantoanominallevel.
With an instrument, this should be your
loudest playing level; with a console, ad-
justthe output oreffects send toproduce
the highest level possible with the least
amount of noise.
4. While sending audio to JamMan, gradu-
ally turn up the INPUT control until the
status LED* lights green. Continue to
advance INPUT until the LED shows red
on only the loudest peaks. If the LED
shows red continuously, turn the INPUT
control down.
5. IfJamManisusingaconsole’ssendsand
returns, set the MIX control fully clock-
wise (100% wet). If you are using an
instrument amplifier, start with MIX set
halfway up.
6. Gradually increase the setting of the
OUTPUT control until the audio level
from the amplifier or mixer is approxi-
mately the same as when JamMan is
bypassed.
3
*The statusLED isoff whenthe incomingsignalis
too low (less than-30dB). Green indicates accept-
able levels (-30 to -6dB). The LED lights red to
indicate overload (-6 to 0dB).

Rear Panel Connections
4
MIDI
Two 5-pin DIN MIDI connec-
tors are provided for MIDI IN
and MIDI OUT.
POWER
Use Lexicon MSA power pack,
or 9VAC 1 amp equivalent.
OUPUT
Single-ended (unbalanced) stereo outputs provide +4dBu
nominal output level. Use the right output connector for mono
output. If no connection is made at the right output, the left
output can be used to drive headphones at modest volume.
FOOTSWITCHES
Two connectors, for momentary contact
footswitches, allow footswitch control of
frontpanel functions.
INPUT
Single-ended (unbalanced) inputs accept
levels as low as -30dBu. Input impedance is
50kΩinstereo,25kΩinmono.Eithercanbe
used for mono input.
FOOTSWITCHES POWER OUTPUTS INPUTS
9V~, 1A,
50-60Hz
LEXICON, INC.
WALTHAM MA 02154
MADE IN U.S.A.
P/N 021-09504
SERIAL #
THIS DEVICE COMPLIES WITH PART
15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE
FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE
HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY
INTERFERENCE RECEIVED<
INCLUDING INTERFERENCE THAT
MAY CAUSE UNDESIRED OPERATION.
:TIP
:RING
:SLEEVE
TAP
RESET/BYP
COMMON
SELECT
FUNCTION
COMMON
L
(PHONES) L
R
(MONO) R (MONO)
OUT IN
MIDI
USE LEXICON
MSA AC ADAPTER
J AM M AN
TIP
RING
SLEEVE
Tip Sleeve
Ring
TAP
RESET/BYPASS

Headphones
A stereo signal which is adequate to drive
headphones is available at the left output
(provided no connections are made through
the right output). This feature is provided as
a convenience for practice purposes, and is
intended to provide only modest volume.
Audio Connections
Audio connections to JamMan are unbal-
anced and should be made with high quality
shielded cables with 1/4" tip-sleeve phone
jacks at the JamMan end.
JamMan produces effects from either
monoorstereosources.Withmonosources,
the dry signal appears, along with audio ef-
fects, at both outputs. For instruments and
sourceswithstereo outputs, usebothinputs.
We recommend using the outputs in stereo
wheneverstereoinputsareused,butifmono
output is required, use the right output jack.
The left and right signals are summed inter-
nally when only the right output is used.
Footswitches
Footswitches connected via the rear-
panel footswitch jacks allow control of TAP
and RESET/BYPASS (or SELECT and
FUNCTION).Two momentary foot-switches
can be wired to a tip-ring-sleeve connector.
A stereo Y-connector allows two identical
single switches to be used.
Onefootswitchisprovidedwithyourunit,alongwitha setof labelsto identify
footswitch functionality. If you are only going to be using one
footswitch,connect it to perform TAP and RESET/BYPASS functions, and
label it accordingly.
5
TAPRESET/BYPASS
SELECTFUNCTION
Use a second (optional) footswitch to
control SELECT and FUNCTION.

PUNCH IN
LOOP PHRASED LOOP
3
4
6
8
12
16
24
MIDI
ECHO
SAMPLE
3
4
6
8
12
16
24
MIDI
Modes of Operation
6
RESET/BYPASS, FUNCTION, SELECT, and
TAPwill performdifferentfunctions, depending
on the mode that is selected here.
With ECHO , SAMPLE , and LOOP
modes, JamMan is actually three complete
boxes behind a single, easy-to-use front
panel. Each operating mode is selected
simply by turning the front panel Mode knob
(shown below).
Each mode offers a unique and exciting
set of functions which are accessible from
the front panel, by footswitch control, or via
MIDI.
Bypass
ECHO SAMPLE
FUNCTION
SELECT
TAP
Feedback
Echo Rate
Reset
Forward
Sample
Play
Audio Trigger
Threshold
Manual
Record/Play
Reset Reset at next
loop boundary
Mute Mute at next
loop boundary
Layer Layer
Replace Replace at next
loop boundary
Loop number
Defines 1st
loop; toggles
FUNCTION
Loop number
Defines 1st
loop; toggles
FUNCTION
PUNCH-IN PHRASED
LOOP
RESET/BYPASS
Reverse
Sample
Play
The function(s) of each front panel switch in each mode.
Thenextsectionsofthe manual describe
each mode in detail, with step-by-step in-
structions to get you started in each mode.