Battery replacement on Yamaha FS1R

Yesterday my FS1R came up with a „Battery Low!“ warning after I had already done the replacement on my M1R and TX802 one year ago. Fortunately again, the CR2032 button cell sits in a holder. Note the Sanyo LC78834 DACs.

17 thoughts on “Battery replacement on Yamaha FS1R

  1. Thomas

    Hi Hajo, thanks for yur excellent pictures! They helped me to make sure I can exchange the battery myself.
    Have fun with your FS1R!
    Thomas
    from Cologne, Germany

  2. Steve S

    Thanks for the pics and battery info. Just swapped mine. Did it quick and the memory looks like it stayed.

  3. LinearNorth

    Thanks for this! My FS1R battery just went out tonight! Wish I would’ve read the part about losing the memory once it was turned off though!

  4. Jjb

    Wow, mine just went out, wonder what determines life, I have gear from the 1980s that still have original battery…

  5. Rich

    THANK YOU! It worked!
    I would never have done it on my own without your blog.

    1) Open the unit by unscrewing the bottom and 3 additional screws from the front panel bottom.
    2) remove the battery by gently sliding it back in the holder and then lifting at an angle.

  6. moses

    really big help – thank you so much.
    what would we do without the internet and of course hajo for this …
    fs1r is done – now i should do the same with my m1r ex :-)
    greetings from germany / bavaria and many thanks from here again and again

  7. Heiner Kruse

    i bought it in April 2000, there was a special soundset on it, do you have any idea how to get hold of that again? cheers

    1. Hajo Post author

      Hi Heiner,

      sorry for the delay. I have no idea and don’t know anything about this special soundset.

      All the best,
      Hajo

  8. Phil

    Just in case anyone reads this. It is the bottom panel that you take off. All the screws plus the screw on the front bottom middle. When I turned mine back on the screen was just light but when I looked closely I could just about make out the screen. I needed to go to utilities to change the contrast. The demo worked but when I tried to play individual patches with the play button they did not sound. So again I went to utilities and did the factory reset. Now everything working perfectly.

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