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  1. #1
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    Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now


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    Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    When I came upon this machine for the first time it was showing E7 A7 error code. I turned the machine off (Behind the front door) and the machine will start to boot up and the power down over and over. It will not boot up... I called Hytec and they thought it was the "boot-rom" card on the controller. Has anyone seen a boot-rom board go bad on a 4 month old machine ? Should I replace the whole controller or just figure out how to get the boot-rom ?

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    Senior Tech 250+ Posts driving lots of miles's Avatar
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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    E7 A7 error code? is this the correct code?

  3. #3
    Senior Tech 250+ Posts harleyrider's Avatar
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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    look at TT-051816_1R1. It has to do with boot failures.

  4. #4
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    Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now


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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    Quote Originally Posted by driving lots of miles View Post
    E7 A7 error code? is this the correct code?
    Yep, sure is... I had to take a second look at it myself...

  5. #5
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    Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now


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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    Quote Originally Posted by harleyrider View Post
    look at TT-051816_1R1. It has to do with boot failures.
    I looked over the Tech Bulletin Thanks so much for that.. Really helps !! I am confused at what the SCN-MFP PWB is... Is that the entire controller board"MFPC" Thanks again for your help !!

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    Senior Tech 250+ Posts harleyrider's Avatar
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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    Yes 1 pwb.

  7. #7
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    Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    1 pwb, but 2 eproms. Both must be removed and moved to new board if replaced

  8. #8
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    Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    In the MX-4070 Service manual, Page 7 - 2 SELF DIAG AND TROUBLE CODE

    E7 A7 is "SSD breakdown". Might be having trouble with that awesome new mSATA!

    Weak part just like the SD's.

  9. #9
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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    I concur. mSATA. I've had 2 go bad on relatively new machines.

  10. #10
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    Re: Sharp MX 3070 E7 A7 Error Code. Machine powers off and on now

    I just had to replace the mSATA card on one of these machines the other day

    Before you replace anything though, remove the MFPC cover plate with the machine on, and look for the green lights. There should be two sets of four lights next to the mSATA card, and one set of four lights at the bottom of the board. If any of the lights next to the mSATA card are not on, replace the mSATA card, and if any of the lights at the bottom of the board are not on, replace the board

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