Reply To: BeoMaster 5000 voltage conversion to 120v

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Home Forums General Discussion & Questions BeoMaster 5000 voltage conversion to 120v Reply To: BeoMaster 5000 voltage conversion to 120v

#57165
Dillen
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    R40 is the NTC resistor for the over-temp protection circuit in the amplifier section.
    It has nothing to do with the wiring of the mains transformer.

    The mains transformers shown on page 8-4 for 100V and 120V are different from the one used for 110/130/220/240V.

    Seeing as you have a Beomaster currently set for 220V:
    If you have 110V in your mains, I would convert to that.
    If you have 120V mains I would convert to 130V.
    If you absolutely must convert to 120V you must replace the transformer with a correct one (8013299, that has a thermal fuse built-in).

    You must also replace the mains fuse with one of twice the amp rating. (Half voltage – twice current – same power, also known as Ohms law).

    Martin