KN6000 “ Error in CPU data transmission

Discussion in 'Technics Keyboards' started by Gary Force, May 13, 2018.

  1. Gary Force

    Gary Force

    Sep 5, 2016
    Likes Received:
    i purchased a KN6000 that did not function except for a piano sound. It had no led’s and no button function. If I would power it on while holding a few keys the Home Screen would come on,but a normal power up would just give me a Error in CPU data transmission. After downloading the service manual I started doing voltage checks on the FAJ board. I found that the 5.0 volts was missing on device IP 1. It is a IC protector rated at 400 milli amp. It was very inexpensive and easy to change. It cured the problem. Everything functions as it should.
    Gary Force, May 13, 2018
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