Sony WM D3 Servo repair

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  • Опубликовано: 22 авг 2014
  • Repair of the motor servo circuit on my professional Walkman cassette recorder

Комментарии • 49

  • @CraigTube
    @CraigTube 8 лет назад +3

    Really looking forward to the WM-10 repair. I used to have one of those little suckers.

  • @gregwilliams2746
    @gregwilliams2746 4 года назад +3

    The spring is a real pain. I've seen videos with the good idea to simply use sticky tape over the catch to stop it coming off so you don't have to remove it and the spring.

  • @robertmattison1282
    @robertmattison1282 8 лет назад +1

    Great Video, thanks for making it..

  • @TheRealMikeHalstead
    @TheRealMikeHalstead 7 лет назад

    First song was "Years may come, years may go", by the Irish Rovers. Nice information, thanks!

    • @12voltvids
      @12voltvids  7 лет назад +1

      And the album...... Black Velvet Band.Yes I figured that out when I rewound the tape and BVB played.That would have been a tape that belonged to my grandmother. She was a big time Irish Rovers fan. I inherited a ton of old records and tapes, and this was probably one of them.

  • @-IndustrialS-
    @-IndustrialS- 3 года назад

    thanks for the video. so i could open my D3 and corrected playback speed without damaging and losing. i took a tape over doormechanism to avoid losing.

  • @donald1056
    @donald1056 8 лет назад

    Good luck!!!

  • @castelblancoaeverd7709
    @castelblancoaeverd7709 6 лет назад

    Nice job.

  • @darthjaymoonstar6
    @darthjaymoonstar6 7 лет назад

    maybe you can help me out... I got a sony walkman wm-1 plays great but the fast forward and rewind do not work and the door has a hard time opening, any tip's on how to fix if or at the very less how to get the door to open better? thank you or your time

  • @griml0gic420
    @griml0gic420 8 лет назад

    I have a Sony TCM-15V that I am trying to repair. The servo is functional but doesn't receive any voltage from the la5523. I don't know if it is that chip or the servo amp circuit. Does anyone have any tips or suggestions for the repair. Thanks.
    Edit: I also need some new belts since they have literally melted away.
    Edit Edit: I got the motor to work, the pause switch just sticks, but I still need belts If anyone knows where to buy them or improvise.

  • @outrodrift814
    @outrodrift814 6 лет назад

    How do you fix a Sony Walkman if no sound is coming out?

  • @DrCassette
    @DrCassette 9 лет назад +6

    I found a Sony WM-D3 at a flea market years ago. Very unfortunately these units all share one problem: There is a plastic gear with a metal insert in the middle. Over the years, the plastic part shrinks slightly and since the metal insert won't do the same, the plastic will eventually crack. That happened on many units, including mine. At first it would still work, but the cracked gear soon started to cause an unstable speed and eventually the mechanism would just get stuck in the crack of the gear and the Walkman just wouldn't work anymore at all. Too bad...

    • @12voltvids
      @12voltvids  9 лет назад

      Those white nylon gears were very problematic.
      It isn't that the plastic shrinks, but more that metal expands and contracts with heat, and the stress causes cracks.
      Same thing happens with teeth that had silver/mercury fillings. Eventurlly the constant expanding will crack the tooth, and require a crown. At least that is what my dentist tells me.

    • @DrCassette
      @DrCassette 9 лет назад

      12voltvids
      Hmm, so if the recorder is kept at a relatively constant temperature it will continue working. That's good to know.

    • @12voltvids
      @12voltvids  9 лет назад +2

      DrCassette
      Those white nylon gears were a problem. I have one that is cracked in my EVS7000 Hi-8 with the PCM sound recorder. If I go into FF it jams and eats the tape. Need to find a new take up hub for it. Same problem. They had a metal disk, with the plastic gear around it.The hub has a magnet on the bottom. The magnet pulls on the metal disk, and this is how they regulate tape tension, the gear can rotate, and the magnetic attraction causes the hub to rotate. The problem is the metal disk expands, and cracks the gear. I should make a video of it. Will do once I get around to ordering a new tape up hub for that machine, which I really should do before they are all gone..

  • @juginder3641
    @juginder3641 8 лет назад

    A have one of these, great units, did recordings of folk concerts and music at Indian Ashrams. The capstan is locked up, have you experienced this before ? I guess I would need a special screwdriver for those tiny screws. Thanks for putting this up. You mentioned a previous programme, is it available ?

    • @12voltvids
      @12voltvids  8 лет назад +1

      +juginder As Dr Cassette put it in the previous comment. The midway drive gear breaks on these units. I found a link to one that someone is showing all apart and running, so you can see the gear that usually breaks. It is the black one in the middle.ruclips.net/video/V8LX1gfF3yIA/видео.htmllso the nylon drive gear on the flywheel (capstan) also has been known to crack.Due to thermal expansion of the metal parts. The plastic doesn`t give, and it cracks. Very common problem on 8mm VCR tape hubs too.

  • @KyleChomei
    @KyleChomei 8 лет назад +1

    Great video! How can I fix the tape position counter?

    • @12voltvids
      @12voltvids  8 лет назад +1

      It will be a belt from the tape counter to the take up hub.

    • @KyleChomei
      @KyleChomei 8 лет назад

      awesome!

  • @HillBillyBrown
    @HillBillyBrown 6 лет назад +5

    I LOST THE SPRING

  • @FunkyDopeBrother
    @FunkyDopeBrother 7 лет назад

    how do you adjust the azimuth? I need to adjust the head I noticed when I lift the cassette while playing it sounds clearer which makes me think the head is misaligned

    • @12voltvids
      @12voltvids  7 лет назад +1

      There is a screw on the side of the head. If you remove the tape cover you will see a hole in the chassis to adjust the azimuth. If you don't remove the tape cover, you will see a small plastic cover that covers an adjustment hole in the tape cover located between the S and O about 1/2" down from the sony badge. Remove the cap,and a small screw driver can be inserted to adjust the azimuth of the head when in play mode.

    • @FunkyDopeBrother
      @FunkyDopeBrother 7 лет назад

      YES! this worked thank you!

  • @zetecfiesta
    @zetecfiesta 6 лет назад

    hi there I have a d3 and the door won't stay closed because some genius before me has lost that spring
    do you have any ideas of the size? thanks

    • @12voltvids
      @12voltvids  6 лет назад

      I have no idea the size of that tiny little spring. We used to buy them by the bag full as they were always being lost on the old walkmans in for service.
      It is about 1/2" long when uncompressed. I was thinking that the tungsten filiment of an old incandescent light bulb cut to length might just be the ticket.
      Cut a piece of the coiled filiment, and stretch it slightly so it becomes springy. What do you think of that?

    • @zetecfiesta
      @zetecfiesta 6 лет назад

      thanks for your reply, you are very kind
      i actually realised all i need to do is measure the hole the spring gets inserted through and that will give me the width now you have told me the length
      take care.

  • @TheJaHa5
    @TheJaHa5 9 лет назад

    About the masking tape, I have opened a lot of cassette walkmans (including Sony) and have seen masking tape on the circuit board. I was sort of confused, but I kinda ignored it after a while, and thought to myself that it was normal.

    • @12voltvids
      @12voltvids  9 лет назад

      Usually tape placed by manufactures is the black, felt type.
      Masking tape is usually placed by servicers when they worked on the unit.

  • @D.Bychowski
    @D.Bychowski 3 года назад

    Beginners concert recorder back in the day. It would make great recordings with the right microphone, but if you were serious and had the money, you bought a D6!

  • @jeremytravis360
    @jeremytravis360 4 года назад +1

    Sony didn't use masking tape to secure wires it must have been someone who had it part in the past.
    They used a thin almost clear tape. I think it might have had some thin strips in it to stop it tearing cross the tape.

    • @Stephen.C.
      @Stephen.C. Год назад

      always a black tape from what Ive seen., but yes, that masking tape was not factory.

  • @infinitecanadian
    @infinitecanadian 5 лет назад

    Isn't silver solder supposed to be good?

    • @12voltvids
      @12voltvids  5 лет назад +2

      For soldering silver. Most of the time it is acid core and will ruin electronics. Rosin core is what you want. 60/40 is the easiest to work with. Lead free is crap.

    • @infinitecanadian
      @infinitecanadian 5 лет назад

      @@12voltvids I just saw a video where a guy used it to mod a game system.

  • @lukerandall2109
    @lukerandall2109 9 лет назад

    HI Could you repair a drive gear on a DD series walkman? I want someone to fix mine Boodakhan walkman.

    • @12voltvids
      @12voltvids  9 лет назад

      ***** I have no more access to parts than anyone else.When the nylon gear breaks there is not much you can do as far as replacing the part. Perhaps one could be manufactured using a 3d printer, but I have never gone down that road. If anyone knows of any companies that offer this service I would love to hear about it, as I have a couple of nice Sony Hi8 decks that have cracked take up hub gears that I have been unable to get. One of these decks has PCM sound, and it is the only deck able to play some tapes that I made on a professional recorder that has no FM sound, only PCM. Most consumer units do not play the PCM track, so those tapes play with no sound, so I am most interested in finding a replacement part, but so far no luck. Every unit I have bought hoping to salvage a gear from has the same gear broken!

    • @juginder3641
      @juginder3641 8 лет назад

      +12voltvids A have one of these,great units, did recordings of folk concerts and music at Indian Ashrams. The capstan is locked up, have you experienced this before ?

  • @YouTube4Rudy
    @YouTube4Rudy 3 года назад

    No wonder on eBay, for this model, several listings will say that the door won't close- it's that damn spring!

    • @12voltvids
      @12voltvids  3 года назад +1

      Usually it is the catch that breaks. The spring gets lost when someone opens it and forgets about it,and boing, it is gone.

  • @uncatila
    @uncatila 5 лет назад

    We all know that you have a collection of that music on cassette tape.

  • @butcherbabys
    @butcherbabys 3 года назад

    Lol spongebob soundtrack 😂

  • @donald1056
    @donald1056 8 лет назад +1

    Very tedious work!!

  • @packratswhatif.3990
    @packratswhatif.3990 4 года назад +1

    Dave, since you have ALL the toys one could want, what does your wife buy you for Xmas ? ..... Batteries ......

    • @12voltvids
      @12voltvids  4 года назад +1

      A garbage can to throw this crap in.

  • @therestorationofdrwho1865
    @therestorationofdrwho1865 3 года назад

    These are worth a lot? They’re all worth a lot. You say every single one of them is worth a lot when you do videos on them 😂😂😂, and they’re worth too much, they’re way too expensive just so someone like myself can’t afford one.....

    • @12voltvids
      @12voltvids  3 года назад

      To me these aren't worth much but they sure seem to sell for allot these days.

  • @Mike-ry4ti
    @Mike-ry4ti 2 года назад

    10:24 same horrible design as the WM-2