CDS 1 ERR message resolved

Posted by: Fraser Hadden on 03 November 2002

Hidden away in a recent thread is a hint which may be critical to CDS 1 users who come across frequent ERR messages when attempting to load a CD.

I have always attributed the ERR messages to problems with the puck and have, as suggested in various threads, forced the rubber rings back to their original circular cross-section and tried again to load the offending CD. This has worked sometimes.

A more reliable technique though, discovered while in a fury at receiving repeated ERR messages, was applying a sharp lateral tap to the CDS as it spun. I was not that keen on this technique as it reminded me of Basil Fawlty giving his car 'a damned good flogging'. Further, I had noted that once the CDS could be induced to read a CD, it would work faultlessly for the rest of the current listening session, before playing up again at the start of the next, so there had to be more going on than just puck problems.

All is now revealed. As the CDS 1 ages, the laser swing arm develops a tendency to stick at the inner part of its travel. Thus, a CD's contents cannot be read into memory, resulting in the ERR message. Just (gently) moving the arm away from the centre frees it and, in my experience, allows CDs to load - to date, irrespective of the cross-section of the rings on the puck.
Posted on: 03 November 2002 by garyi
Lancelot yours sounds just like a knackered nextal ring, no cure I am afraid
Posted on: 04 November 2002 by Chris West
Transports have many moving parts and have to work to a very precise degree. Like cartridges they wear out.....

The mechanical bearings can stick and also the laser intensity drops off over time.

The CDS1 transport actually starts to seize up if it is not used for months. Naim have to take their remaining spares and "exercise them" now and again to keep them fit for use....

There is no easy way to repair a CD transport so if any part of it fails the whole mechanism is replaced. Any used CD player purchaser should factor in availability and cost of transport replacement.

Chris West

Naim USA.
Posted on: 04 November 2002 by Rockingdoc
Ìt isn't your imagination, my CDS1 transport used to stick at the inner end of its travel. This was at least as big a factor in my deciding on the CDS2 uprade as the sound.
malcolm
Posted on: 05 November 2002 by David Churchill
Fraser

Thanks for the suggestion. It seems to work on my box. This has been plaguing me for a couple of years now. The situation improves in summer or when I keep the room temperature high but the short sharp shock seems to work ! Interestingly Naim put in a "new" mechanism, but this did not resolve the problem. I was considering the upgrade to CDS2 but this may keep me happy for a while.
By the way with all the new stuff appearing does anyone know if Naim will still do the CDS to CDS2 upgrade ?
Posted on: 07 November 2002 by Willem van Gemert
Hi all,

I've been away for a while and just noticed the new gear! Wow, I sure missed something.
Does anybody know if the CDS to CDS II upgrade will still be offered with the CDS III coming out soon?

Ciao!

Willem
Posted on: 08 November 2002 by Richard Dane
For the time being we are still offering the CDS to CDS2 upgrade. Price will depend on how old your CDS is - older units will need modifications to the CDPS unit and Burndy. Contact your local Naim distributor for further details.

As far as CDS2 owners looking to upgrade to a CDS3, we have no firm plans on upgrades or special trade-in pricing as yet but will make an announcement sometime in the new year on any decision taken.
Posted on: 08 November 2002 by Martin Payne
quote:
Originally posted by Chris West NANA:
The CDS1 transport actually starts to seize up if it is not used for months. Naim have to take their remaining spares and "exercise them" now and again to keep them fit for use....



Chris,

do you know what is done to 'exercise' the transports?

BTW, I have wondered about this in the past, and thought that maybe leaving a CD on repeat, with just the first & last tracks programmed in would make the transport 'work' backwards & forwards from inner to outer & back again.

Obviously best to pick a CD with at least 74 mins of content, and preferrably with short first & last tracks.

Any thoughts, anyone?

BTW, I am *not* suggesting this, I'm raising it for discussion. I reckon there's a 50/50 chance it might help or make things worse, unless someone has any expert advice?

cheers, Martin