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  1. #1
    Member
    Join Date
    Jul 2010
    Posts
    60

    Mazatrol T1 CPU alarms

    I have a QT 20 T1 control with square turret. I am getting alarms. CPU 1 fault, CPU 3 fault, Cpu 5 fault, MCU fault and sometimes screen goes blank wit CPU DOWN. Sometimes it will run perfect for 3 or 4 hours but other times it will just not run. I have tried swapping first 2 boards with good machine with no change.

  2. #2
    Member
    Join Date
    Jul 2010
    Posts
    60
    I have a scrap QT20 with disc turret. I took complete control unit from scrap machine, swapped chips on first board (the small one that sits on second board) and replaced faulty one. It now works fine.

  3. #3
    Registered
    Join Date
    Aug 2017
    Posts
    15
    Quote Originally Posted by murphyc1 View Post
    I have a scrap QT20 with disc turret. I took complete control unit from scrap machine, swapped chips on first board (the small one that sits on second board) and replaced faulty one. It now works fine.
    I have the same problem alarms, 3 F CPU1 FAULT, 5 F MCU FAULT and sometimes CPU DOWN, which card did you replace, sometimes it works fine for a few hours
    Attached Thumbnails Attached Thumbnails 16227599275545692416112255868153.jpg  

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