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How to verify the -5V converter ???

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  • How to verify the -5V converter ???

    Hello,

    I'm french and i don't speak english very well, so excuse me !!!

    I'm finished the bandido II umax but i'm not sure where i must put the multimeter to verify the -5V

    when i put the multimeter between this 2 points ( see image below ) i have +0.7V and i d'ont undestrand ??? => is it correct ???

    Thank you for your help

    https://www.geotech1.com/thuntings/a...ntid=609&stc=1
    Attached Files

  • #2
    D4 and D5 are round the wrong way. If you dont have a neative voltage on the board it will scream. Also recheck the schematic.
    Vic

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