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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B
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  1. #1
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Hello Sir
    I have same 914 alarm on my Takisawa Tap center OM FANUC
    I have lost memory due to low battery, but now I’m getting 914 alarm, if I reset memory
    920 watchdog alarm comes up..
    Could you share if I have to buy some chips?

  2. #2
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    Apr 2007
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    5

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Hi I am having the same trouble Alarm 914 ram parity Servo.
    Can someone help.
    Thanks!

  3. #3
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by Fsilva View Post
    Hi I am having the same trouble Alarm 914 ram parity Servo.
    Can someone help.
    Thanks!
    Hello.
    What is the Master PCB part number?
    Since you have a 914 alarm, probably the master pcb is the problem.
    I hope you have a backup of all the parameters.
    regards

    AlexFanuc

  4. #4
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by Fsilva View Post
    Hi I am having the same trouble Alarm 914 ram parity Servo.
    Can someone help.
    Thanks!
    Master board error.


    Sent from my iPhone using Tapatalk

  5. #5
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    18

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by Third-Gen View Post
    to avoid having to answer this question a bunch of times privately, this is the fix. I replaced all the chips in red, one by one, and the ones in yellow, one by one. the red ones fixed nothing, but the yellow ones were the issue. It has never been the axis board, as Fanuc says it can be.
    Hello Third-Gen.
    in the picture it is not possible to read the memory reference, can you tell me what´s the memory reference?
    Sorry for my poor english.

    regards

  6. #6
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by tintin2005 View Post
    Hello Third-Gen.
    in the picture it is not possible to read the memory reference, can you tell me what´s the memory reference?
    Sorry for my poor english.

    regards
    I think the number is A16B-1010-0285

    Regards

    AlexFanuc

  7. #7
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by alexfanuc View Post
    I think the number is A16B-1010-0285

    Regards

    AlexFanuc

    Thank you for the answer.

    I do not want the motherboard reference number. i need the ram reference ... something like TMM2089.
    If someone can post a better quality photo, maybee it is readable.

    regards

  8. #8
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by tintin2005 View Post
    Thank you for the answer.

    I do not want the motherboard reference number. i need the ram reference ... something like TMM2089.
    If someone can post a better quality photo, maybee it is readable.

    regards
    Attachment 458986

  9. #9
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by tuanpq View Post

    Hello and Thank you Tuanpq.

    Are these tmm2089 the ones in the yellow squares?

    regards

  10. #10
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by tintin2005 View Post
    Hello and Thank you Tuanpq.

    Are these tmm2089 the ones in the yellow squares?

    regards
    TMM2089P-45 4 ICs in red circle Attachment 459132
    you can replace by MB81C79A-45P

  11. #11

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    Quote Originally Posted by memoryman View Post
    Sad to rad about your experiences.
    The cause for the 914 or 915 alarm is ALWAYS on the main board; a relatively easy fix. Contact me if you need control advice.
    i need help in 914 alarm

  12. #12
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    Please state your control masterboard # and any photos of the screen and control.

  13. #13

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by Third-Gen View Post
    ok talked to another old school Fanuc tech today, the chips I replaced are the program memory RAM only. Those would throw a 910 or 911 alarm. The SERVO RAM is a different part of the board, which i will be getting parts for, but wont be posting publicly since this is paid info and people need job security. hope this gets me running again. again, the chips i replaced are not needed to be replaced for a 914 alarm.
    i am having 914 alarm please help me

  14. #14

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    this is my board number
    Attached Thumbnails Attached Thumbnails IMG-20201221-WA0001.jpg  

  15. #15

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    this is a pic of screen.

  16. #16

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    Quote Originally Posted by Third-Gen View Post
    ok talked to another old school Fanuc tech today, the chips I replaced are the program memory RAM only. Those would throw a 910 or 911 alarm. The SERVO RAM is a different part of the board, which i will be getting parts for, but wont be posting publicly since this is paid info and people need job security. hope this gets me running again. again, the chips i replaced are not needed to be replaced for a 914 alarm.
    Dear sir i have send you the details please check that

  17. #17

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo OM-B

    dear sir i am have problem with is alarm
    Attached Thumbnails Attached Thumbnails IMG_20210223_190920.jpg   IMG-20201221-WA0001.jpg  

  18. #18
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    Most likely it involves one or more of the chips in the two rows in top middle (below MADE IN JAPAN FANUC ). If they are socketed, it/s easy to replace.

  19. #19

    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    this one

  20. #20
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    Re: FANUC DOWN AGAIN. 914 RAM Parity Servo Ot b

    Yes, and the 28 pin ones to the left.

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