Aiwa HS-P05/P5 Motor Governor

Discussion in 'Tech talk' started by quaz30, Sep 20, 2020.

  1. quaz30

    quaz30 Active Member

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    Hi,
    The motor governor chip in my HS-P05 is broken and sends straight battery voltage out of the output. The schematic for this model doesn't describe this board in any detail and I don't know what the chip is.
    If anyone knows what this 8 pin IC is and if you can buy it, please let me know
    [​IMG]
     
  2. Valentin

    Valentin Well-Known Member

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    Hi,

    The IC is a LA5524 (https://pdf1.alldatasheet.com/datasheet-pdf/view/110618/SANYO/LA5524.html) and can be found on ebay.
    But I would personally check other things first, before replacing the IC. I see that the 2 trim pots cursors are not in contact with the carbon traces, so rotating them to a position where they make contact and also clean them with some contact cleaner is what I would try first.
    Also, there is a ceramic capacitor at the top of the picture that might not be ok from what it looks like. Measure it to confirm it's not shorted.

    Good luck with your repair !
     
    Last edited: Dec 15, 2020

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