digital concepts mcb med5 for true fitness z7 treadmill

Discussion in 'General Electronics Chat' started by cubanme, Jul 19, 2014.

  1. cubanme

    Thread Starter New Member

    Jul 19, 2014
    I have been looking everywhere for some help in finding a replacement diode for this faulty MCB. The guy I sent it out to get fixed is having no luck in getting information from True Fitness or Digital Concepts about the Diode.

    all I know is that what the guy looking at my board said. The Part Location is Zr2 the board itself is an med5 #3. any Ideas of what can be done?
  2. MaxHeadRoom


    Jul 18, 2013
    You may have to do a little reverse engineering around the diode spot as it is most likely the 12v zener for the low voltage supply, Do you see the LED lit at all?
  3. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    From a first glance, it looks like R35, 13, 6 and 20 look cooked.

    The whole thing looks to have had a rough, hot life. :(