Roland SERVICE INFORMATION NO 100223

                                     JP-6
    
                                    SUBJECT
    

                     VARIABLE MIDI CHANNEL PROM FOR JP-6
    
        We introduce an optional E-PROM ver.6 (variable MIDI
        channel) for JP-6. This is E-PROM that JP-6 can be used in MIDI
        connections of plural equipments (in the different channels).

        NOTE:  The E-PROM being used now on JP-6 will never be changed
               into this type. So this E-PROM is the optional part
               which you can apply for request of special customers
               who want to make function up on their JP-6. 


        FUNCTIONS OF MIDI CHANNEL ASSIGN PROM

       a)   This E-PROM has been completely programed in MIDI 1.0 ver. and
            it can be corresponded to all equipments with MIDI ver.1.0
            including other manufacture's ones.

       b)   It contains self-set function to "OMNI OFF" mode, and
            MIDI IN (Recongnizing function) will be "OMNI OFF" mode
            automatically when setting a channel. How channel
            assignable is shown in the attached manual of it.

        NOTE:  This function is very effective for setting up in
               the MIDI connection of plural equipments.

       C)   When power on, MIDI IN will be "OMNI OFF" mode. This
            means that players can start to play without taking
            a panel set or setting a channel when receiver and
            transmitter's channels are same, even if a MIDI equipment
            (which does not send out "OMNI OFF" message from MIDI OUT
            when power on e.g. YAMAHA DX-7 or any other SCI one) is
            connected to JP-6 (receiver).

       NOTE:   OMNI OFF mode (MIDI IN) is necessary in the MIDI
               connections of plural equipments.