Sony CFS-C7 pinch roller problem

Discussion in 'Tech talk' started by Boodokhan, Jan 22, 2018.

Tags:
  1. Boodokhan

    Boodokhan Well-Known Member

    Messages:
    2,476
    Trophy Points:
    113
    Location:
    California
    [GALLERY=media, 870]

    i got this Sony CFS-C7 from Japan. The cassette movement started working after changing the belt but the problem is the pitch roller which is not moving appropriately. Fast forward, rewind works without problem but when I push the play button pinch roller stops completely. Even without a cassette moves slowly.
    When I roll it manually I feel some resistance compare to other pich rollers( in different Boomboxes).
    I took the pinch roller out with pinch roller holder as I showed in the picture and cleaned it with alcohol but still the problem continues.
    Any recommendation?
    Is it possible to find this part?
    Thanks[/GALLERY]
     

    Attached Files:

  2. Jorge

    Jorge Well-Known Member

    Messages:
    1,754
    Trophy Points:
    113
    Location:
    Malibu, CA
    Looking at the photos I have this feeling that rubber got separated from the plastic core. Push the center pin out to see what is actually happening. Agreed, it does not look too good: a little bulge in the center is good for tape self-alignment, but here it looks wrong
     
    Boodokhan likes this.
  3. Mister X

    Mister X Moderator Staff Member

    Messages:
    16,446
    Trophy Points:
    113
    Location:
    Minnesota
    I haven't done any of this work for a long time but that bulge does look wrong, similar to this one on TapeHeads.

    http://www.tapeheads.net/showthread.php?p=426478

    There's some information on pinch rollers on page 34/40 of this old MCM Catalog, they are now Newark Electronics, it might give you a part number to work with.
    https://web.archive.org/web/2005092...uct-details/text/mcm/html/cat49/section05.pdf

    I'd also check here, I think these guys are still in business, I called over the holiday but it went to voicemail.
    http://www.russellind.com/prbline/index.html

    And there's some parts on Ebay but you'll have to find an interchangeable part.
     
    Boodokhan likes this.
  4. Boodokhan

    Boodokhan Well-Known Member

    Messages:
    2,476
    Trophy Points:
    113
    Location:
    California
    What is the correct way to take this pinch roller out of its housing?
     
  5. T-ster

    T-ster Moderator Staff Member S2G Supporter

    Messages:
    1,465
    Trophy Points:
    113
    Location:
    England
    Brutus442 and Boodokhan like this.
  6. Boodokhan

    Boodokhan Well-Known Member

    Messages:
    2,476
    Trophy Points:
    113
    Location:
    California
    Thank you @T-ster
    I do have this tool
     
    Brutus442 likes this.

Share This Page