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  1. #1
    Senior Tech 100+ Posts selig67's Avatar
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    Question KM5050 error code CFB31. Not in manual

    Machine will not boot up, just goes to blue screen and displays CFB31 error. There is nothing in the service manual or on the website about this.


  2. #2
    Trusted Tech 50+ Posts TA_Tech's Avatar
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    Not Much but will point you in the right direction

    According to my info this is a communication problem between the Panel PCB (don't know which one) and the controller PCB (I suppose this the main PCB - Difficult to say because i have the info in German and have to translate). Symptoms are as you said a blue, or black screen. Possible source of fault is Panel PCB, controller PCB, or connection cable


  3. #3
    Senior Tech 100+ Posts selig67's Avatar
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    what I did

    I just replace the main PWB and hard drive from a different machine.. it now boots up but goes into a CFB30 error code.. but at least I got rid of the blue screen!!! is it possible that this error is because the machine I borrowed the board from is a 5050?


  4. #4
    Trusted Tech 50+ Posts TA_Tech's Avatar
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    CFB30 related to CFB31

    My info Gives the same symptoms for this code as for CFB31. but instead of communication error between panel PCB and controller PCB, says it is only comm. error with controller PCB.


  5. #5
    Gimp 500+ Posts JSC's Avatar
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    First thing to try is to change the Dimms there is a set under the ops panel, and a one in the main board, you MUST change them as a pair. If thats no good swap the ops panel complete but remember to swap the dimms in the panel so you keep the same pair on the machine.

    Good Luck.

    Let us know how you get on............

    Last edited by JSC; 05-05-2008 at 08:40 PM. Reason: Spelling

  6. #6
    Senior Tech 100+ Posts selig67's Avatar
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    Smile that was it!

    I had taken the board out of the 5050 to see if that was the problem and I still got the error. I brought the op panel over from the 5050 and the error went away. So it was the fact that I didnt have all the original dimms together.

    THANKS!!!


  7. #7
    Master Of The Obvious 10,000+ Posts
    KM5050 error code CFB31. Not in manual

    blackcat4866's Avatar
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    The firmware was at different levels. All you needed to do was reload firmware to the latest v. 2.05A. The date that shows on the Configuration Report is 1/28/08.

    =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  8. #8
    Senior Tech 100+ Posts selig67's Avatar
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    Talking cool!!

    thanks for the firmware advice.. I always use firmware as a repair tool!


  9. #9
    Senior Tech 100+ Posts
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    I had a 3050 that triggered a CFB31 code only when it the network cable was plugged in. Disconnect it, reboot the machine, everything works. Plug it back in, reboot, CFB31. Turns out the other end of the network cable was plugged into a switch which had another network cable with BOTH ENDS plugged into the switch creating a loop. Connected everything the right way, code went away.


  10. #10
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    List of CF CODE

    Hello,

    Here is a list of codes for KM 5050/4050/3050

    Thanks

    PS : The list is on the Technical Bulletin 23 (TB23)

    Attached Files Attached Files

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