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Thread: Odyssey Bias Board issues

  1. #1
    Junior Member
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    Default Odyssey Bias Board issues

    Hi Guys,

    Would appreciate if someone can advice on the voltages of these 1w Zener Diodes

    Thanks
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  2. #2
    Junior Member
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    Oh my apologies mine is the 220-240v version.
    Guess it should be the same as the US version but just in case.

    Thanks again

  3. #3
    Junior Member
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    Apologies guys already identified the component.

    Thks

  4. #4
    Super User JonFo's Avatar
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    No worries, but just for completeness sake, please let us know what was wrong, and how you fixed it.

    Cheers.
    Jonathan

    System #45 (Monolith IIIx, Sequell IIb, SL3XC)

  5. #5
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    Hi JonFo,

    When I measured that string of diodes notice that the last 4 was opened so I thought zener are gone.
    Replaced with new zener , well it was still open when tested with dvm so am scratching my head on this.
    Thought problem was resolved as 1 panel is lower in volume. Good news though after replacement of zener
    volume is up but it's still lower by 2-3 db. Been surfing to find info on how to balance out the sound level
    but found nothing in relation to this particular board . Perhaps you can advice on this Jon.

    Thank you

  6. #6
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    Sorry Jon,

    If I understand correctly these string of zener is kind of stablizing the voltage before the voltage multiplier.
    If this is so why are the last 4 zener tested opened with dvm ?

    Thank you again

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