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IndustryArena Forum > MetalWorking Machines > HURCO > NOT A PEEP FROM RS232 PORTS ULTIMAX BMC20
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  1. #1
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    NOT A PEEP FROM RS232 PORTS ULTIMAX BMC20

    ALL CABLES ARE OK, TESTED OUTPUTS ON PORT 1 AND 2 WITH OSCILLOSCOPE. NOTHING OUTPUTED.
    TRIED INPUT AND OUT PUT NOTHING AT ALL.
    MACHINE PREVIOUSLY WORKED WITH
    XON/XOFF

    ANY ONE WITH ANY IDEAS???

    CHEERS

    WODY

  2. #2
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    Max 2 or Max 3?

  3. #3
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    ULTIMAX 1 THE ORIGIONAL

  4. #4
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    sorry it is the ultimax 2

  5. #5
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    Pull the RS232 card and replace all the MC1488 and MC1489 chips. Fiver and it's done.

  6. #6
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    I already changed the 1488 the inputs and it wouldnt read in.

    The other one are soldered so i didnt try what are your thoughts?

    Cheers

    Woody

  7. #7
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    I changed the whole comms board. Paid 150 euri from cnc shopping.
    It now works ok.
    I am gonna change all chips on old board and retest

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