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tektronix 2465 error code

Discussion in 'Electronic Repair' started by JMINN699, Apr 5, 2007.

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  1. JMINN699

    JMINN699 Guest

    Does anyone know what test 05 fail 40 mean on power up. Also the
    graphics have static in them, is this normal. thanks

  2. carneyke

    carneyke Guest

    If I understand the manual, it means there is a problem with the main
    board (bottom of unit). Check the power supplies at J119 (DIP socket)
    on bottom board near the rear panel for DC Voltages and AC ripple.
    Connect your meter negative lead to chassis. You should find these DC
    voltages on the following pins of J119:
    Pin 4 = 10 Vdc
    8 = 87
    9 = 42.4
    6 = 15
    2 = 5 digital
    12 = 5 analog
    5 = - 5
    11 = - 8
    1 = -15

    All supplies should have less than 1mv rms ripple.
    I believe you have a supply with a lot of ripple.
    I have seen the readout all moisy caused by bad capacitors in the
    primary supply.
    It isn't a lot of fun to get at !
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