Recent Content by nutronic

  1. nutronic
    Post

    Panasonic RQ-S series (pad lifter generation) restoration tutorial

    @Valentin, great tutorial! I really admire the design of this model series, they cram an awful lot into that tiny case size, yet the construction...
    Post by: nutronic, May 23, 2025 at 2:59 PM in forum: Tech talk
  2. nutronic
    Post

    Sony WM-F701C / F707 / R707 No Power

    @Seb that's fantastic! When I discovered this issue it seemed so obscure - I'm amazed it has turned out to affect more than one unit. Still not...
    Post by: nutronic, May 17, 2025 in forum: Tech talk
  3. nutronic
    Post

    Sony WM-F701C / F707 / R707 No Power

    Thanks @Seb, yes my F707 is working perfectly now. It needed a mechanical overhaul as well (mostly routine stuff, cleaning and lubrication), and...
    Post by: nutronic, May 16, 2025 in forum: Tech talk
  4. nutronic
    Post

    Sony WM-F701C / F707 / R707 No Power

    @Seb, you've come to the right place! This sounds EXACTLY like the issue I discovered with the buttons not responding on my F707. It sounds like...
    Post by: nutronic, May 15, 2025 in forum: Tech talk
  5. nutronic
    Post

    Bluetooth Transmitters

    Thanks but it looks like that is a Bluetooth receiver / FM transmitter - what I'm after is a Bluetooth transmitter, which will take the audio from...
    Post by: nutronic, Apr 21, 2025 in forum: Chat Area
  6. nutronic
    Post

    Sony WM-F701C / F707 / R707 No Power

    I have another finding to add to this thread. I thought I was finished with repairing my F707, but when I went back to try to use it again, I...
    Post by: nutronic, Apr 20, 2025 in forum: Tech talk
  7. nutronic
    Thread

    Bluetooth Transmitters

    Hi, I like the idea of using my Walkmans with wireless headphones, which would be convenient for listening while gardening, doing DIY etc. I...
    Thread by: nutronic, Apr 18, 2025, 8 replies, in forum: Chat Area
  8. nutronic
    Post

    The AM Stereo Thread and the players.

    Not forgetting the Aiwa HS-JX929 - arguably the most feature-rich walkman ever made, when Aiwa added AM Stereo to the already very sophisticated...
    Post by: nutronic, Feb 23, 2025 in forum: Chat Area
  9. nutronic
    Post

    Sony WM-F701C back to life

    Thanks, @autoreverser ! There is more to this story because I still wasn't completely satisfied with the sound quality. Browsing the web I came...
    Post by: nutronic, Feb 23, 2025 in forum: Tech talk
  10. nutronic
    Post

    Sony WM-F701C / F707 / R707 No Power

    @Fulltimehuman , likewise regarding family commitments, which is why this has been quite a long-term project! My hunch was right and I traced the...
    Post by: nutronic, Feb 8, 2025 in forum: Tech talk
  11. nutronic
    Post

    Needing help hacking a Sony TC-D5M to get half-speed

    Hi, I may be able to help (no promises!)... I don't know the TC-D5M, but I know a bit about servo control loops and can understand (most of) the...
    Post by: nutronic, Jan 25, 2025 in forum: Tech talk
  12. nutronic
    Post

    Sony WM-F701C / F707 / R707 No Power

    Right, I now have my F707 open on the bench. I'm powering it from a bench power supply which displays the load current, and I have discovered a...
    Post by: nutronic, Jan 24, 2025 in forum: Tech talk
  13. nutronic
    Post

    Aiwa HS-J707 seeking diagnosis

    Key point in valentin's post above: Electrolytic caps always have a polarity identification stripe on the negative terminal; Tantalum caps...
    Post by: nutronic, Jan 5, 2025 in forum: Tech talk
  14. nutronic
    Thread

    Sony WM-F701C back to life

    This was my restoration project over the Christmas break. I was hesitant to even attempt this one, considering the state of the capstans and...
    Thread by: nutronic, Jan 4, 2025, 2 replies, in forum: Tech talk