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repair a fluke 123 keyboard inibited

Discussion in 'Troubleshooting and Repair' started by elias-rgb, Oct 9, 2015.

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  1. elias-rgb


    Oct 9, 2015
    buon giorno a tutti grazie per l'opportunità di scrivere nel vostro forum.
    ho letto come spettatore e ho notato la vostra passione per l'elettronica.

    chiederei un aiuto per riparare un fluke 123.

    il difetto che presenta è che dopo l'accensione dello strumento i tasti della tastiera sono inibiti.

    mi chiedevo se non fosse perchè ho cambiato la batteria dato che la sua è stata sostituita con una non originale?

    dato che è particolare?
    allego anche un circuito della batteria originale.
    che ne pensate....?
    gradirei un aiuto

    good morning everyone thanks for the opportunity to write in your forums.
    I read as a spectator and I noticed your passion for electronics.
    ask help to repair a fluke 123.
    the defect that presents is that after switching on the instrument keyboard keys are inhibited.
    I wondered if it was because I changed the battery as its has been replaced with a non-original?
    since it is in particular?
    I enclose a circuit original battery that can be of help.
    what do you think....?
    I'd like to help

    Attached Files:

  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    Buon giorno, Elias.

    Does the meter work with the old battery (you maybe have to charge it to work a little bit)?
    Does teh replacement batery have the ID-resistor and NTC in place with correct values?
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