pioneer pd-75 disassembling? Lens unglued

Discussion in 'Digital Sources' started by pinky6, Apr 15, 2017.

  1. pinky6

    pinky6 Member

    Messages:
    86
    tmp_11035-20170415_1559451340596940.jpg tmp_11035-20170415_155939-201121058.jpg tmp_11035-20170415_15593925887999.jpg I have heard this is a common problem with the pickup lens falling out of the assemblies of the stable platter models. My question is has anyone taken this player apart and if anyone would like to chime in on this. I wanted to take the front panel off but the door needs to come off to get the front seperated. Also does anyone have some advise on once I get this assembly removed how to place the lens back in and what glue adhesive to use? And I would guess a calibration is needed afterwords ?
     

     

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  2. Fredrik 1977

    Fredrik 1977 Super Member

    Messages:
    1,133
    Location:
    Sweden!
    i have ran in to that 4 times (only happens on pioneers it seems). i just put a tiny drop of superglue :) on the side of the lens and put it back carefully. works every time:) make shure you dont get any glue ontop of the lens

    as for the front/drawer issue. i dunno i havnt worked on that exact model.
     
  3. pinky6

    pinky6 Member

    Messages:
    86
     
  4. pinky6

    pinky6 Member

    Messages:
    86
    I downloaded the pd 65 service manual and it shows and instructs how to disassemble. Not sure how different the 75 is from the 65.
    you didn't have any issues after putting the lens in? No adjustments required? Does it kind of snap into position or can it be tilted if your not careful or have a steady hand.
     
  5. Fredrik 1977

    Fredrik 1977 Super Member

    Messages:
    1,133
    Location:
    Sweden!
    no issues afte the fix.and no adjustments required

    it just sticks in a hole, the lens has kind of a flange around it, just press down untill the flange makes contact with the housing.

    be carefull though, NO glue ontop of the lens or at the bottom. the machine must be able to see through it :)
    and dont press like crazy! since the lens housing assy is mounted with some sort of coils for the focusing. pretty delicate stuff.

    but unless your Wreck-it Ralph i think you´ll get it playing again soon!
     
    Last edited: Apr 16, 2017
  6. pinky6

    pinky6 Member

    Messages:
    86
    Well haven't attempted the repair other than taking a dental mirror to go into the transport to indeed confirm the lens is gone. It is and I have it. The issue is I'm not sure how to get the transport apart? Any leads on instructions links etc would be great.
     
  7. pinky6

    pinky6 Member

    Messages:
    86
    Well got the itch to work on the pd-75 again after months of sitting in a closet. Looked inside and my engineering side studied it and got the transport out. Wasn't too bad and I glued the lens back in put it back together and it started right up. It's an amazing piece of engineering. Not bad for 30 bucks. Have not hooked it to my elite system but sure sounded great with my classic silver stack. Now I have all but one componant in my elite stack. I have the c91,m91,f-93,ct-93,ct-91, and pd-75. Now I just need the elite tt. I might just have to settle on a PL-F3 as I just don't think I'm going to find a pl-90 cheap enough.
     
    Fredrik 1977 likes this.
  8. eickmewg

    eickmewg AK Subscriber Subscriber

    Messages:
    335
    I bought a Pioneer CD changer from a Barter Town listing for the garage. When it arrived I couldn't get it to work. First problem was a CD jammed under the laser mechanism. I got the CD out and it still wouldn't work. The seller mentioned the possibility of an unglued lens and I actually found the little sucker in a bottom corner of the changer. I drop of clear "school glue" around the flange on the lens did the trick and it functioned properly. I was surprised I found the dislodged lens.
     
    Fredrik 1977 likes this.

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