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HP8116a with error E51

Discussion in 'Electronic Equipment' started by free_electron, Feb 26, 2008.

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  1. Anyone knows what the error means ? i know its in the extended service
    errors. Unfortunately the docs in Hp website say its explained on page
    10.1 and their doc ends at 9.8 ....
    i had a hardcopy of the manual somwhere but can;t find it right now ..
    drat !

    Would be cool if i can fix it. ( i've fixed 3 or 4 of these before. )
  2. JW

    JW Guest

    Hello free_electron,

    I've fixed a few of these myself - it's a well laid out unit and easy to
    work on. Does this help?:

    Shaper Output State
    Test E51
    The shaper IC U401 is not able to supply positive output when -90"
    startphase and complement output mode are selected with triangle
    waveform (VCO not triggered).Possible faults:
    VCO (Slope) IC Al: U201
    Waveform switching Al: U104
    Reference voltage switching Al: U204
    Amplitude DAC A2: U27, U28, U17
    Refer to Chapter 10.5, Chapter 10.3 and Chapter 10.4.

  4. JW

    JW Guest

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