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Adding Memory

ICs must be inserted with the

beveled corner facing the rear

of the unit.

Installing four 1M x 4 bit ZIP ICs increases
JamMan memory from 8 to 32 seconds.

22

Before performing the memory upgrade procedure, disconnect JamMan from its power supply.

Installing the memory upgrade is not dif-

ficult, but care should be taken in handling
ICs, as well as in disassembling and reas-
sembling your unit. ICs can be damaged by
static electricity, and incorrect insertion can
damage both the IC and your unit. Observe
the following precautions:

• Keep parts in original containers until ready for

use.

• Avoid plastic, vinyl or styrofoam in the work

area.

• Discharge personal static before handling.
• Minimize handling; avoid touching IC pins.
• Do not slide ICs over any surface.
• Insert ICs with the proper orientation.
• Watch for bent pins on ICs.

Manufacturer

Label

Motorola

MCM54400AZ

Hitachi

HM514400AZP

NEC

D424400V

Fujitsu

MB814400

Mitsubishi

M5M44400L

Micron

MT4C4001JZ

JamMan can be upgraded from 8 sec-

onds of memory, to 32 seconds, simply by
installing four 1M x 4 bit ZIP ICs.

These can be purchased through your

Lexicon dealer, direct from Lexicon, or from
computer electronics suppliers. If you pur-
chase the memory upgrade from Lexicon,
the ICs will be labeled as shown below.

«
...
24
25
26
27
28
...
»

Summary of Contents for JAM MAN

Page 1: ...User Guide ...

Page 2: ...enna 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 Communica...

Page 3: ...User Guide User Guide ...

Page 4: ... 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 Bas...

Page 5: ... are unavailable anywhere else and all of them 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 reset functions and complete remote control viaMIDI JamManreallyletsyou...

Page 6: ... 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 DI...

Page 7: ...e 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 If JamMan is using a console s sends and 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 audi...

Page 8: ...NPUT Single ended unbalanced inputs accept levels as low as 30dBu Input impedance is 50 kΩ in stereo 25 kΩ in mono Either can be 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...

Page 9: ...h inputs We recommend using the outputs in stereo whenever stereo inputs are used but if mono 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...

Page 10: ...t 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 ...

Page 11: ...ant the TEMPO LED on the front panel will start blinking at the echo rate you ve set Sixteen levels of feedback con trol echo regeneration are provided through the front panel SELECT knob or via footswitch Once you ve tapped in the basic rhythm for example quarter notes pressing FUNCTION allows you to split the echo rate into eighth note triplet or sixteenth note echo rates or to keep it in the ba...

Page 12: ...urrent echo rate When a new rate is tapped in the LED lights solid on the first tap then blinks at the new echo rate on the second tap If no second tap is received echo rate will automatically be set to the maximum available memory MUTE LAYER REPLACE FUNCTION RESET BYPASS SELECT TEMPO TAP TAP Press twice in rhythm to set echo rate FUNCTION Selects between tapped rhythm and three rhythmic variation...

Page 13: ... change to eighth note triplets The middle display LED should light 4 Press FUNCTION again to hear your original echo rate in sixteenth notes The bottom display LED should light 5 Press FUNCTION again to return to your original echo rate None of the display LEDs should be lit Note that you can set any of these rhyth mic variations before you tap in a tempo allowing you for example to tap in quarte...

Page 14: ...ry capacity of your unit The TEMPO LED will light solid on the first TAP then start blinking at the selected echo rate after the second TAP This LED continues to blink at the tapped in echo rate no matter what rhythmic variation is chosen 10 Pressing FUNCTION gives you four rhythmic variations of any rhythm you TAP MUTE LAYER REPLACE Tapped in Rhythm Rhythmic Variations FUNCTION Setting No LEDs Li...

Page 15: ...gle sample of as long as 8 seconds 32 seconds with memory upgrade Once a sample is recorded you can set it to play forward or backward You can even change direction as many times as you like during playback You can trigger play manually or via footswitch or set it to play in response to one of fifteen levels of audio threshold 11 PUNCH IN LOOP PHRASED LOOP 3 4 6 8 12 16 24 MIDI ECHO SAMPLE 3 4 6 8...

Page 16: ... selected to play forward flashing ready to record Sample selected to play backwards 1 16 Audio trigger threshold Indicates audio sample is stored Single segment chase pattern indicates sample record dual segment chase patterns indicate forward and backward sample play FUNCTION Toggles and selecting whether the recorded sample is to play forward or backward 12 LED lights during sample record flash...

Page 17: ...ill let you hear your sample whenever it is triggered without hearing the material that is triggering sample play 2 WhilesendingaudiointoJamMan slowly increase the setting of SELECT until your sample starts to play The TEMPO LED will flash when the audio threshold has been reached All of the display indicators are the same as for manually triggered sample play and FUNCTION toggles reverse play on ...

Page 18: ...ple Press TAP to stop recording or let the memory capacity of your unit fill with your sample More about SAMPLE mode If you are using an audio trigger and find that the beginning of your sample is being cut off on playback raise the audio thresh old If on audio triggered sample playback the sample is retriggering too easily lower the threshold ...

Page 19: ...h are perfectly timed to the MIDI tempo Togetstartedin LOOPmode connectan audio source to JamMan and 1 Turn the Mode knob to PUNCH IN LOOP and set it to 4 2 Set the front panel MIX control halfway between DRYand WET JamMan provides two versions of its LOOP mode PUNCH IN and PHRASED Thesearedifferentiatedprimarilybywhether you want the overdub functions you ve se lected to occur immediately or at t...

Page 20: ...nction cued On Function active DISPLAY Loop displayed is cued to begin at start of next phrase When recording first loop indicates less than 1 second of memory remains 1 8 ID number of current or cued loop Indicates displayed loop is the final loop of the current sequence 0 ready to define the first loop of a new sequence Chase pattern indicates loop recording Basic Looping FUNCTION Selects MUTE L...

Page 21: ...rn at any tempo you want 2 Once you feel that the timing is solid press TAP on the first beat of your pat tern The display will show a single segment chase pattern to indi cate that JamMan is recording 3 Press TAP again on the downbeat of the next pattern repeat You ve just created a loop Two TAPs define a loop which starts replaying on the second TAP Note that the TEMPO LED is now blinking at the...

Page 22: ...ing the next loop Recording will begin automatically at the next loop boundary Loop 2 will stop recording and start playing as soon as the pre determined loop size is reached 2 3 4 2 3 4 1 2 3 4 Loop 1 JamMan automatically stops recording and starts playing loop 2 Play another phrase Set SELECT to 2 any time loop 1 is playing Recording of 2nd loop automatically starts here 18 JamMan allows you to ...

Page 23: ...audible time reference such as a foot tap drum machine se quencer another player a metronome etc A second footswitch connected to control SELECT and FUNCTION allows you to cue the next loop for recording without taking your hands off your instrument Expanding JamMan memory to 32 sec onds really opens up the creative possi bilities of multiple looping Selecting Phrased Loop with the Mode knob allow...

Page 24: ... JamMan transmits the appropriate MIDI messages to start playing the drum machine in perfect time with the loop you just created In this example the drum machine will automatically be set so that 8 MIDI quarter notesfitperfectlywithinonerepetitionofyour loop When you are using JamMan with other MIDI devices these numbers allow you to define your loop size in terms of MIDI quarter notes PUNCH IN LO...

Page 25: ... IN MIDI MIDI IN MIDI OUT Drum Machine or Sequencer TAP RESET BYPASS TAP once to record a loop Loop size is determined by the number of MIDI beats loop set on the JamMan front panel tempo is set by the connected device Make sure the drum machine or sequencer clock source is set to transmit MIDI Clock Linking two JamMan units offers some very interesting possibilities such as stereo looping or inde...

Page 26: ...ecautions Keep parts in original containers until ready for use Avoid plastic vinyl or styrofoam in the work area Discharge personal static before handling Minimize handling avoid touching IC pins Do not slide ICs over any surface Insert ICs with the proper orientation Watch for bent pins on ICs Manufacturer Label Motorola MCM54400AZ Hitachi HM514400AZP NEC D424400V Fujitsu MB814400 Mitsubishi M5M...

Page 27: ...nter top center bottom and on the rear are shorter than the others 3 Place the unit upside down on a clean static free surface Pull out the rack mount extensions on each side of the unit and slide the cover off of the unit 23 5 Gently pull each IC out of its socket Do notrocktheICsto loosen them Put these aside so that you do not confuse them with the upgrade ICs 6 Carefully align each new IC over...

Page 28: ...n be disabled on power up1 Channel Channel X 1 Mode Defaullt X 3 Messages X X Altered X Note X X Number True Voice Velocity Note ON X X Note OFF X X After Keys X X Touch Channels X X Pitch Bender X X Control 0 95 X X Change Lexicon JamMan MIDI Implementation 24 ...

Page 29: ...ds O X Aux Local ON OFF X X Messages All Notes OFF X X Active Sense X X Reset X X Notes With the exception of MIDI Clock all MIDI data received is echoed through the OUT port 1 See next page for power up procedure to disable receipt of MIDI Progam Change messages 2 See next page for MIDI Program Change map 25 Mode 1 OMNI ON POLY Mode 2 OMNI ON MONO O Yes Mode 3 OMNI OFF POLY Mode 4 OMNI OFF MONO X...

Page 30: ...6 cue loop 5 audio threshold 15 feedback 15 17 cue loop 6 feedback 16 18 cue loop 7 19 cue loop 8 20 mute restart 26 All front panel controls can be accessed via MIDI Program Change messages as shown These messages are recognized on MIDI Channel 1 Recognition of these messages can be temporarily disabled or assigned to another MIDI Channel with the following power up procedure 1 Simultaneously pre...

Page 31: ...tted via the OUT port The front panel MUTE LED will light and the TEMPO LED will flash to indicate JamMan is muted with a loop running OnceJamManismutedthisway asecond Program Change 20 will restart both the current loop and any connected drum ma chine allowing you to resume play at the beginning of a loop Any other Program Change message 1 19 or any footswitch or front panel com mand received whi...

Page 32: ...l Frequency Response Wet 20Hz 15kHz 1dB to 3dB Dry 20Hz 20kHz 0 5dB THD N Wet 0 05 1kHz Dry 0 025 1kHz Dynamic Range 85dB typical 20Hz 20kHz bandwidth Conversion 16 bit linear PCM encoding 31 25kHz sampling rate Power Requirements 9VAC 1A wall transformer provided Dimensions 19 W x 1 75 H x 4 D 483 x 45 x 102mm Weight Unit 2 lbs 12 oz 6 1kg Footswitch 8 5 oz 1 2kg Environment Operating Temperature...

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