1. Things you need to know about the new ‘Conversations’ PM system:

    a) DO NOT REPLY TO THE NOTIFICATION EMAIL! I get them, not the intended recipient. I get a lot of them and I do not want them! It is just a notification, log into the site and reply from there.

    b) To delete old conversations use the ‘Leave conversation’ option. This is just delete by another name.
    Dismiss Notice

naim cd 3.5 problem

Discussion in 'd.i.y.' started by Barrie, Sep 5, 2013.

  1. Barrie

    Barrie veteran member

    hi my naim cd 3.5 has had a turn for the worse the stop button is illuminated but wont do anything else.. ive taken a quick look inside and all appears in order... can u help

    cheers in advance
  2. Bemused

    Bemused What's this all about then?

    Is the stop button stuck?
  3. martin clark

    martin clark pinko bodger

    Are the remote batteries flat, or it's buttons stuck down? Remove batteries from remote for a handful of mins and replace; and try power off/ power on on the player if you havent already.

    ETA I realise you've probably cycled the power to remove the cover but I once had a similar problem and the cause? remote jammed down back of sofa!
  4. Barrie

    Barrie veteran member

    I don't have a remote so it cant be that.. the digit track display isn't working eather
    but where it says naim audio it does light up
  5. MJS

    MJS Trade: Consultant at WH Audio

    Next step is to check all the regulated power supplies inside. They're all positive regs - LM317 so you can probe the tab on them. Most voltages are +5 with a couple at +9.5v and 18v IIRC.
  6. Barrie

    Barrie veteran member

    wich ones are these mjs
  7. Bemused

    Bemused What's this all about then?

    Perhaps a picture of the inside would help those of us whom are unaware of the layout.

    Help us to help you that is.
  8. Barrie

    Barrie veteran member

    that would be good but looks like a trip to witch hat anyway perhaps mjs will put a pic up marking which ones to test
  9. martin clark

    martin clark pinko bodger

    Once you have the case top off, it's the ones clamped to the back panel (4 in total iirc) nearish the mains inlet and the two at the other end of the PCB marked LM317T.

    Clip the black lead of your dvm on the chassis earth point (= signal 0v in Naim Cd players). With the player turned on, you then only need to touch the red probe to the large tabs on each reg in turn and write down the voltage you see on each. Do be careful not to let the probes slip / short between each such 'tab' and anything else.
  10. Barrie

    Barrie veteran member

  11. IGH

    IGH New Member

    Hello, I am a newbie. I have a CD3.5 which has the ERR display when attempting to play a track. I have removed the lid and removed the disc drive from the player and removed the disc drive pcb and plugged the drive back into the motherboard and pressed play. The laser shows its red light and tries to focus but no disc is present. I have a new puck but all the disc manages to do is rotate about 130 degrees then stops and shows the ERR display. With the laser light present, I am temped to think it is OK, but is it? I would appreciate some recommendations as to its fault origins. Also, am I missing something like perhaps a micro switch being open because I have removed the disc drive housing from the player?
  12. suzywong

    suzywong Shifting 0s & 1s since 1968

    I read just a couple of days ago on the green forum that Naim still have stock of the VAM1205 mechanism for the 3.5 & CDX players.

    @Mark (MJS), do you guys at WH have any?
  13. MJS

    MJS Trade: Consultant at WH Audio

    We don't have any, the genuine article is very hard to come by, so if Naim have them, brilliant - I'd go there.
  14. steve watkins

    steve watkins pfm Member

    I might be wrong but I seem to recall that the CD3.5 could have a problem with the platter dropping if the puck was dropped repeatedly onto the disc or the platter was forced down at all. The platter reduced clearance did not allow sufficient space for the laser to focus on the disc or physically impeded, slowed or stopped the disc from rotating.
    I have had it happen on the CD2 several times. I don't know if here is a specific height but gently easing the platter up again, I used a pair of thin knives, cured any problems but I would make sure you are confident that might be the issue before taking any action. I also remember a 3.5 platter falling to pieces and all the bits being stuck to the puck. I assume the plastic gets brittle over time so if you touch it please be careful.
    Last edited: Oct 15, 2019
  15. Jono_13

    Jono_13 Duffer

    Ah!! A plague of dead CD3.5s... mine won’t work either despite being stored in the original packaging.
    Mine will spin the , index the laser and then the dreaded “Err” message appears.
    Everything looks good, so any more thoughts?
  16. Dowser

    Dowser Learning to bodge again..

    The lasers do wear out on these, but finding reliable replacements is not so easy.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice