KR-55 uniPulse installation questions

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  • #8278
    Anonymous

    Hey, I am following the KR55 installation guide for the uniPulse (MK3).
    https://tubbutec.de/blog/midi-and-sync- … ion-guide/

    Just have a few questions to confirm my understanding…
    Click images for larger version…

    1.)

    KLM-198

    I’d like to solder the Power (V+/GND) and Clock / Reset on this side of the board.
    Will it be possible? and have the pins/solder points been identified correctly?

    2.)

    It was a little unclear to me about connecting the MIDI sync switch.

    Do I solder the wires of D1 and D2 from the uniPulse to Pin 2 and 5 (respectively) of the DPDT switch?

    And, do I solder wires to the Clock (Pin 3) and Reset (Pin 4) of IC3 and then solder the other end of these wires to Pin 3 and 4 (respectively) of the DPDT switch? Do I supply these wires myself?

    3.)

    Finally, does this switch connect to the Learn pads of the uniPulse? In which case, I supply these wires?

    Thank you.

    #8279
    Anonymous

    Anybody got an to answer this?
    I’m installing Unipulse as well, in a Korg KR-55.
    Can’t see where RST is, at all.

    #8280
    tubbutec
    Keymaster

    For external MIDI control please follow the attached image:
    – solder 1 wire to pin 3 of IC 3 (Clock)
    – solder 1 wire to pin 4 of IC 3 (Reset)
    – solder both wires to the provided DPDT switch, eg one to each middle pin
    – solder the Unipulse D1 wire to the bottom pin of the switch for the clock connection
    – solder the Unipulse D2 wire to the bottom pin of the switch for the reset connection

    Please also refer to the installation manual: https://tubbutec.de/blog/midi-and-sync- … ion-guide/

    #8281
    Anonymous

    Hello!

    i´ve got also an installation question… i´ve opened the KR-55 and found this.
    Would you go on? I´m scared it has an effect on what the uniPulse does.

    Thank you!

    #8282
    tubbutec
    Keymaster

    These wires look factory installed, might be an earlier version where they had to fix something. I would not worry and continue with the uniPulse installation

    #8283
    Anonymous

    Thank you! i´ll go on.

    tubbutec wrote: ↑
    Wed Jan 20, 2021 7:13 am
    These wires look factory installed, might be an earlier version where they had to fix something. I would not worry and continue with the uniPulse installation

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