User manual MARSHALL JMP-1

[. . . ] JMP-1 HANDBOOK ENGLISH 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 made up of guitar players who fully understand the needs and realities of guitar performance. [. . . ] This allows you to link directly to the PA and obtain a stunning direct sound in a live situation. In the studio it will give a true guitar tone direct to tape. 24. Emulated Level Selection Switch Selection switch providing +4dB or -10dB output levels on the speaker emulated outputs. Master Level Selection Switch Left and right outputs for connection to a power amplifier. Gives +4dB or -10dB Master output level options. 4 27. Effects Return Jacks ENGLISH 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. Provides level selection of +4dB or -10dB to match the level of external effects processors. Output for connection to the input of the external effects processor. Connection point for optional Marshall four way footswitch to give 4 patch selection. Sends outgoing MIDI messages from the JMP-1. Sends out MIDI messages identical to those coming in through the MIDI IN terminal. Terminal to receive incoming MIDI messages from external MIDI device. Your JMP-1 is provided with a detachable mains (power) lead which is connected here. Before connecting for the first time, please ensure that your JMP-1 is compatible with your electricity supply. If you have any doubt, please get advice from a qualified person. Your Marshall dealer will help in this respect. 28. MAINS INPUT When you switch on When switching on the JMP-1, the unit will run through an initialising process and will then default to the patch number that was selected when the JMP-1 was last switched off (Fig1). Your JMP-1 is now ready for action. Fig 1 Patch Patch Data Patch Store Creating Your Sounds Your JMP-1 is capable of producing a vast array of different tones, stored in the 100 available patches. The simplicity of creating and storing these sounds is a major advantage and feature of the pre-amp. A "Patch" is a combination of all the programmable elements that you put in, therefore if all tone and volume selections are at 0, no sound will be produced. [. . . ] 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 on the power. Memory back-up The JMP-1 has an internal battery back-up system to keep your patches safe while the unit is switched off. This battery should last for several years. Every time you power up the JMP-1, a self check program is run. If any errors are detected an "E" will be displayed momentarily (Fig 8). [. . . ]