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JMP-1
HANDBOOK
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From The Chairman I would like to thank you personally for selecting the JMP-1 MIDI Pre-amp. As our first venture into MIDI controlled guitar equipment, many hours of development have been spent ensuring that it fulfils the functions that you really need to cope with todays widely varied playing environments. We have always worked very closely with guitarists from many different fields and their valuable input has been an essential ingredient in the creation of the JMP-1. My design team is ma
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ENGLISH WARNING! - Important safety instructions ! WARNING: This apparatus must be earthed! A. PLEASE read this instruction manual carefully before switching on. B. ALWAYS use the supplied mains lead, if a replacement is required please contact your authorised Marshall Dealer. C. NEVER attempt to by-pass the fuses or fit ones of the incorrect value. D. DO NOT attempt to open the apparatus, there are no user serviceable parts. E. Refer all servicing to qualified service personnel including repla
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Introduction The relationship between the guitarist and amplifier has been our prime concern since the earliest Marshall’s were produced. We always aim to give that extra edge, which can help to inspire the player, fuelling creativity and the ability to express. Advances in technology have allowed us to modify and enhance this basic principle for the benefit of the musician. However, we have never lost sight of that extra emotional drive that only valves are capable of producing. The whole ch
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ENGLISH 14. Effect Key This key varies the mix of the stereo effects loop between 0 and 12. At 0 only the direct signal is heard and at 12 only the effected signal is heard. When at 12 the loop is effectively running in series i.e. no direct signal. This is ideal for use with a graphic equalizer or compressor limiter. As the effect parameter level is reduced, more direct signal is introduced as with a parallel loop. This is best suited to Chorus, Delay, Reverb etc. 15. OD1 Key This
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27. Effects Return Jacks Left and right jack sockets for connection from the outputs of an external effects processor. If using a mono effects processor the left hand return socket only should be used. In this instance both the left and right master outputs and speaker emulated outputs will now be working in mono. 28. Effects Level Selection Switch Provides level selection of +4dB or -10dB to match the level of external effects processors. 29. Effects Send Jack Output for connection to
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ENGLISH Storing Yours Sounds Fig 2 Store When you are satisfied with the sound that you have created, storage is achieved in the following way. Push the store key (6) once , the LED Patch Patch Data will flash (Fig 2). Select the desired patch location using the data entry control (7). (Pressing the patch or any parameter key will abandon the Store store). Push store a second time to complete the store Memory Lock A memory lock can be set to keep your data safe. This will disable Fig 3 Memo
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Factory Sounds Your JMP-1 has 26 sounds ready programmed into patches 00-25. These patches have been programmed by experienced guitarists. They have also been used in full stage and studio performance. These sounds can all be edited in the way described earlier and recalled if necessary using the procedure described in the section-“to re-initialise the JMP-1.” Pre set sounds TITLE MODE B/S VOL GAIN BASS MID TREB PRES 00 Smoke-em OD 2 off 18 20 3 -3 3 1 01 Chunkus OD 1 off 17 20 1 -3 3 4 02 Stic
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ENGLISH Pre set sounds descriptions TITLE MODE ATTRIBUTES PICKUPS COMMENTS 00 Smoke-em OD 2 Lots of drive & sustain It starts here 01 Chunkus OD 1 Big, Ugly & Fat Gain controls "chunkiness" 02 Sticky OD 1 Edgy grime Big change for different guitars 03 Cleeeeen CL 2 Very Lots of headroom 04 British Steel OD 2 Warm & Heavy English overdrive 05 Nasal Tone OD 2 Thin, midrangy & cutting When tracks are full, this fits 06 Quo !!! OD 2 Bright crunch Rocks you all over the world 07 Angus-Ho OD 2 Mid '7
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Some Notes On MIDI In a modern guitar set-up you might have a number of elements, a pre-amp and an effects processor or two. By using MIDI to link these devices together, you can control them all simultaneously. This is the real use of MIDI for the guitarist (Musical Instrument Digital Interface). Most MIDI devices are equipped with three MIDI terminals, MIDI IN, MIDI THRU and MIDI OUT. The connection between these terminals is quite simple. A MIDI IN terminal would be connected to a MIDI O
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ENGLISH MIDI Mapping MIDI mapping is a simple and very useful facility, but it often confuses those who are new to MIDI. The MIDI Mapping table is stored in the memory and is made up of two parts, Input mapping and Output mapping. MIDI MIDI MIDI IN THRU OUT Incoming MIDI Data 4 Way Footswitch Input Output Mapping (Patches 1-4) Mapping to MIDI Device 00-127 Call up Internal Patch (00-99) Front Panel Control Input Mapping The input mapping table makes it possible to transpose any incoming MIDI
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Four Way Footswitch The optional Marshall four way footswitch (model MPM 4E) provides a simple means of selecting four patches. The footswitch will call up patches one to four, however, the Mapping facility can be used to call up any four of the 100 JMP-1 patches. To Re-initialise The JMP-1 This procedure will re-load the factory sounds and reset the mapping table. WARNING:- Your edited sounds will be lost if the unit is re-initialised. Procedure, Hold down OD1 and Clean 1 whilst switching
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ENGLISH If their is an error (Fig 10) in the MIDI data the JMP-1 will abandon the load and return to normal. Try the load again, the error could be due Fig 10. System Exclusive error to a file corruption or faulty cable. Patch Patch Data Store MIDI Implementation Chart FUNCTION TRANSMITTED RECOGNIZED REMARKS Basic Default 1 OMNI Memorized Channel Channel 1-16 1-16 Default ✕ MODE 1 Mode Message ✕✕ Altered ✕✕ Note ✕✕ Number True Voice ✕✕ Velocity Note ON ✕✕ Note OFF ✕✕ After Key's ✕✕ Touch C
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JMP-1 Front Panel Features 1 2 3 4 5 7 8 9 10 11 12 13 14 Output Level Patch Volume Gain Bass Middle Treble Presence Effect Patch Data Data Power Input Phones - + Store OD1 OD2 Bass Shift Clean 1 Clean 2 Map Channel VALVE MIDI PRE-AMP JMP-1 Made in England 6 15 16 17 18 19 20 21 22 JMP-1 Rear Panel Features MIDI FOOTSWITCH EFFECTS MASTER SPEAKER EMULATOR Marshall Amplification plc. England +4 dB +4 dB +4 dB WARNING: Fire and Shock Hazard - Do not -20 dB -20 dB -20 dB Expose Unit
