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VC3165 Frequency Counter schematic

Discussion in 'Troubleshooting and Repair' started by Bodgerbill, Mar 5, 2020.

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  1. Bodgerbill

    Bodgerbill

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    Mar 3, 2020
    The schematic diagram does not seem to be correct but it is the only one I can find on the Net.
    My VC3165 has the "B" input going via a cap to the MB506 chip, not the "A" input.

    I seem to have damaged my B input with a bit of static and have ordered a new MB506 I.C.
    The A input still works fine.
    There are no back to back diodes fitted to the B input on my counter.
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    @Bodgerbill : What is your question? Why did you hijack an old thread from 2012 (with an intermediate update from 2016)?
     
  3. Bodgerbill

    Bodgerbill

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    Mar 3, 2020
    Well, I was wondering if anyone had the correct schematic.
    Sorry,I didn't check the date.
     
  4. HectorPascal

    HectorPascal

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    0
    Mar 31, 2020
    Hi Bodgerbill,
    Did you ever find a readable and "correct" 3165 schematic? The one you posted is just TOO hard to make out!
    I'm vaguely thinking about designing an input interface for a GPS disciplined frequency standard.
    Thanks
    Hector
     
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