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trimmers

  1. tusntuk2

    Pioneer SX-727 Blown Internal Fuse - what can I do?

    Hello AK, thanks for looking in. I'm having trouble identifying the cause for blowing an internal 3A fuse (# 2) in a Pioneer SX-727. I have reviewed other threads here and made some changes to my unit, but the fuse blew again while on the DBT, so I'm stuck, now. Can't measure voltages if it...
    • tusntuk2
    • Thread
    • fuse blow pioneer power supply protection circuit sx-727 trimmers zener diode
    • Replies: 31
    • Forum: Pioneer Audio
  2. Shrugg

    The issues with speed trimmers

    My Sony Ps- x50 developed a few problems after using it for about a year. The strobe Light had failed and the table ran slow on 33, and even slower on 45. I recapped the power supply, which fixed my stobe issue, but didn't fix the turntable. I was stumped. o_O After much head scratching, I went...
  3. bibota

    Changing 2230 trimmers

    R765 trimmer behaving unreasonably while being adjusted did quite some damage on my right P750. I intend to replace all pots now. Not at all sure about the power rating though, in the specifications are all marked as "B". Any advice please? This series available at Digikey seems to be...
    • bibota
    • Thread
    • bias dc current p750 pots r765 trimmers
    • Replies: 6
    • Forum: Marantz Audio
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