Sanyo JT760L Tuner station memory

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  • Xenon-Codex
    Senior Member
    • Jan 2018
    • 185
    • Finland
    #1

    Sanyo JT760L Tuner station memory

    What keeps the presets in the memory? There's no battery, but the memory lasts only 1-2 hours without power. Could it be that large capacitor?
    The thing is a Sanyo JT760L, it has its own power but the signal etc were via a ribbon cable. It now has a RCA-jack.
    Attached Files
    Last edited by SMDFlea; 09-08-2021, 12:21 PM. Reason: Sanyo JT760L
    Tags: None
    • redwire
      Badcaps Legend
      • Dec 2010
      • 3906
      • Canada
      #2
      Re: Sanyo JT760L Tuner station memory

      I thought these have no preset backup. Mains power is always on, so they are like a clock that must be set with a power outage. The 1,000uF capacitor can keep data for a little while. I could not find the schematic, Sanyo JT-340L is the highest they go at hifi Engine
      https://www.hifiengine.com/manual_li.../jt-340l.shtml
      Toshiba tuner MCU TC9303N I could find no other data.

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